Entries |
Document | Title | Date |
20090040294 | Holographic video display system - A holographic video display comprises a monochromatic light source, a video signal generator, guided-wave acousto-optic modulators for diffracting light according to signals received from the video signal generator, a vertical scanning subsystem, and an optical path between the acousto-optic modulator and the vertical scanning subsystem. The optical path preferably comprises a Bravais lens system, first and second Fourier transform lens systems, and at least one holographic optical element or stationary mirror of continuous helical shape. In a method for generating a holographic image, monochromatic light is provided to at least one guided-wave acousto-optic modulator, the received light is diffracted according to a video signal, the guided-wave modulator aperture is scanned to produce a holo-line, the motion of the diffraction pattern is undone to render the holo-line stationary, the guided-wave modulator aperture is demagnified to create a wide field of view, and the holo-lines are tiled vertically to create the image. | 02-12-2009 |
20090128619 | SIGNAL PROCESSING SYSTEM FOR SYNTHESIZING HOLOGRAMS - This invention relates to hardware acceleration of signal processing systems for displaying an image using holographic techniques. A hardware accelerator for a holographic image display system, the image display system being configured to generate a displayed image using a plurality of holographically generated temporal subframes, said temporal subframes being displayed sequentially in time such that they are perceived as a single reduced-noise image, each said subframe being generated holographically by modulation of a spatial light modulator with holographic data such that replay of a hologram defined by said holographic data defines a said subframe, the hardware accelerator comprising: an input buffer to store image data defining said displayed image; an output buffer to store holographic data for a said subframe; at least one hardware data processing module coupled to said input data buffer and to said output data buffer to process said image data to generate said holographic data for a said subframe; and a controller coupled to said at least one hardware data processing module to control said at least one data processing module to provide holographic data for a plurality of said subframes corresponding to image data for a single said displayed image to said output data buffer. | 05-21-2009 |
20090141120 | Method and apparatus for compensating data image reproduced from holographic system - The present invention provides a method and apparatus for preprocessing a page image reproduced from a storage medium in a holographic system. The present invention calculates pixel sums for each lines in the page image to select a maximum sum, calculates a modified maximum sum using the modified maximum sum and its neighboring sums, determines a compensation location for distorted pixels using the modified maximum sum and performs over-sampling a data image with reference to the compensation location of magnified pixels, to thereby compensate the data image with high precision in sub-pixels. | 06-04-2009 |
20090147072 | Image Capture System for a Digital Holographic Printer - An image capture system for a digital holographic printer is disclosed comprising a digital camera ( | 06-11-2009 |
20090219380 | METHODS AND APPARATUS FOR DISPLAYING IMAGES USING HOLOGRAMS - The invention relates to method, computer program code and signal processing/image display systems for displaying one or more images using holographic techniques. We describe a method of generating data for displaying an image defined by displayed image data using a plurality of holographically generated temporal subframes, the temporal subframes being displayed sequentially in time such that they are perceived as a single noise-reduced image. The method includes generating from the displayed image data holographic data for each subframe of said set of subframes such that successive replay of holograms defined by said holographic data for said subframes gives the appearance of said image, and wherein the method further includes, when generating said holographic data for a said subframe, compensating for noise in said displayed image arising from one or more previous subframes of said sequence of holographically generated subframes. | 09-03-2009 |
20100045775 | Holographic Reconstruction System Having an Enlarged Visibility Region - The invention relates to a holographic reconstruction system for the reconstruction of scenes having at least one video hologram modulated wave front, and an enlarged visibility region. The system utilizes two-dimensional coded light modulator cells of spatial light modulation means and optical focusing means, which realize a Fourier transformation of the modulated wave front in their focal plane. First optical deflection means deflect the parallel disposed partial light waves such that their Fourier transformations appear as cascading in the focal plane. A spatial frequency filter located on the focal plane, lets each of the same diffraction orders of all modulated partial light waves pass, and second optical deflection means arrange the wave front strips next to each other at the modulated wave front, which reconstructs the scene. | 02-25-2010 |
20100045776 | Interface and Circuit Arrangement, in Particular for Holographic Encoding Units or Holographic Reproduction Devices - The invention relates to an interface and circuit arrangement, in particular for transmitting digital image data to at least one holographic encoding unit (HEU), which generates complex hologram values from image data containing depth information and/or encodes the pixel values for controlling at least one light modulator element of a holographic reproduction device. The invention is characterised in that the interface transmits the depth map of the image data and the colour map of said image data separately via transmission means (L | 02-25-2010 |
20100103246 | Holographic Projection System with Optical Wave Tracking and with Means for Correcting the Holographic Reconstruction - A holographic projection system with a display screen and an optical wave tracking means for controlling the direction of propagation of a modulated wave uses a position controller and an eye finder. An extremely wide tracking range is realised in the projection system for simultaneous viewing of the reconstruction by multiple observers, which are situated beside one another. The reconstruction of the scene is reconstructed for each eye position of an observer such that the entire scene is visible in the visibility region in a large tracking range with minimal errors. The projection system reconstructs the scene with the help of modulated partial waves. Projection means direct these partial waves with separately holographically reconstructed segments of the scene at the desired eye position through a structure of screen segments which are at least horizontally staggered on the display screen. | 04-29-2010 |
20100118117 | 3D CONTENT GENERATION SYSTEM - A 3D content generation system comprising a content generating party that generates 2D content and sends that content to a remote intermediary. The remote intermediary processes the content to facilitate subsequent holographic reconstruction and sends the processed content to a holographic display device which locally generates a 3D holographic reconstruction of the content. An advantage is that 2D content may be processed remotely to provide 3D holographic content. | 05-13-2010 |
20100118118 | THREE-DIMENSIONAL DISPLAY SYSTEM - A three-dimensional display system provides a projection screen having a predetermined angularly-responsive reflective surface function. Three-dimensional images are respectively modulated in coordination with the predetermined angularly-responsive reflective surface function to define a programmable mirror with a programmable deflection angle. | 05-13-2010 |
20100149311 | Holographic Display with Communications - Holographic display with which voice and holographic image over internet protocol (VHIOIP) services or communications are provided. | 06-17-2010 |
20100149312 | Analytical Method for Computing Video Holograms in Real Time - An analytical method for computing a video hologram for a holographic reproduction device having at least one light modulation means is disclosed, wherein a scene split into object points is encoded as a whole hologram and can be seen as a reconstruction from a visibility region, located within a periodicity interval of the reconstruction. The visibility region, together with each object point of the scene to be reconstructed, defines a subhologram and the whole hologram is generated from a superposition of subholograms, wherein the complex hologram values of a subhologram are determined from the wave front of the respective object point to be reconstructed in a modulator region of the light modulation means, by calculating and evaluating the transmission or modulation functions of an imaging element formed in the modulator region. The object point to be reconstructed is located in the focal point of the imaging element. | 06-17-2010 |
20100149313 | Holographic Reconstruction system with a Tracking Device for the Reconstruction - A holographic reconstruction system having spatial light modulators, an eye finder and a position control orients a propagating spatially modulated light wave field toward at least one eye position of an observer's eye, thereby reconstructing a scene in a three-dimensional manner and tracking the same during a position change of the eye position. Through Unobstructed lateral and axial movement of the observer head to arbitrary eye positions in a tracking region is enabled. The use of additional, planar optical components, which bring about optical aberrations during a position change of observer eyes, are prevented. | 06-17-2010 |
20100171811 | METHOD AND DEVICE FOR THE CREATION OF PSEUDO-HOLOGRAPHIC IMAGES - A method and a device enable the creation of three-dimensional images with more than two perspectives (e.g. pseudo-holographic images), especially to be reproduced with the aid of an autostereoscopic display or an autostereoscopic screen, from fed images having, in particular, only two perspectives, e.g., a left and a right image channel. Also, a related device creates and reproduces three-dimensional images having more than two perspectives, especially in the form of an autostereoscopic multi-user visualization system. | 07-08-2010 |
20100194854 | Holographic Reconstruction System with an Arrangement of Controllable Microcells - A holographic reconstruction system is disclosed for the three-dimensional reconstruction of object light spots of a scene, comprising spatial light modulation means which modulate interference-capable light waves of illumination means with at least one video hologram, and optical focussing means which focus the modulated light waves with the reconstructed object light spots for at least one eye position of the observer's eyes. An electro-optical deflection means controlled by a system controller focuses the modulated light wave with the reconstructed object light spots on at least one eye position and tracks them when the eye position changes. The electro-optical deflection means is a controllable optical diffraction grating with a variable surface relief structure consisting of separately controllable microcells. | 08-05-2010 |
20100225739 | METHOD OF REDUCING EFFECTIVE PIXEL PITCH IN ELECTROHOLOGRAPHIC DISPLAY AND ELECTROHOLOGRAPHIC DISPLAY INCLUDING THE SAME - An electroholographic display system ( | 09-09-2010 |
20100277566 | HOLOGRAPHIC IMAGE DISPLAY SYSTEMS - We describe a method of displaying an image holographically using a spatial light modulator (SLM), the SLM having a plurality of pixels, the method including: displaying a diffraction pattern on the pixels of the SLM; and illuminating the pixels such that light diffracted by said diffraction pattern on the SLM pixels includes a content of said displayed image. A variation in brightness of said displayed image across the displayed image is modulated by an intensity envelope determined by the diffraction pattern of an individual said pixel, for example a sinc envelope. The method further includes moving a peak or centre of gravity of the intensity envelope away from a zero order spot and towards a centre of the displayed image by imposing a pattern of phase delay across the SLM pixels, the pattern of phase delay repeating at a spatial interval corresponding to a pixel interval of the SLM. | 11-04-2010 |
20100289870 | 3D Display Device with Controllable Device for Tracking Visibility Regions - A 3D display device with controllable device for tracking visibility regions is disclosed, and includes a controllable device for tracking a visibility region, generated by way of superposition of light source images, in a observer plane of the display device. In preferred embodiments, the cladding of a waveguide comprises at least one material with optical properties of an anisotropic liquid, or at least two materials with optical properties of an isotropic liquid; a matrix arrangement of control electrodes defines multiple positions to be generated for local exit points in the cladding of the waveguide at which the total reflection is locally cancelled; and a system controller modifies positions of the output coupling points for superposing the output-coupled light through the lens array to the visibility region by displacing an output coupling point, or by switching off one output coupling point and switching on another one. | 11-18-2010 |
20110043607 | TRACKING AND CHARACTERIZING PARTICLES WITH HOLOGRAPHIC VIDEO MICROSCOPY - In-line holography to create images of a specimen, such as one or more particles dispersed in a transparent medium. Analyzing these images with results from light scattering theory yields the particles' sizes with nanometer resolution, their refractive indexes to within one part in a thousand, and their three dimensional positions with nanometer resolution. This procedure can rapidly and directly characterize mechanical, optical and chemical properties of the specimen and its medium. | 02-24-2011 |
20110050845 | MINIATURIZED ALL-REFLECTIVE HOLOGRAPHIC FOURIER TRANSFORM IMAGING SPECTROMETER BASED ON A NEW ALL-REFLECTIVE INTERFEROMETER - A miniaturized Holographic Fourier transform imaging spectrometer HFTIS, made from simple all-reflective components and with no moving parts, is provided. This HFTIS includes an all-reflective two beam interferometer, which provides two interfering beams; a two-dimensional detector array to detect the interference pattern created by the beams; a computing machine for correcting the distortions in the pattern and calculating the spectrum from the corrected interferogram. The same principle can be used to build spot spectrometers, line-scan imaging spectrometers (also called array spectrometers or line-scan hyperspectral cameras) as well as two-dimensional instantaneous imaging spectrometers (also called staring hyperspectral cameras). In all variants of HFTIS that can be built using this invention, the wave-signal collecting element can also be built of all-reflective components. Digital correction can be utilized to straighten the interference fringes and to compensate for the impact of used lenses and other refractive components, to produce correct spectra after Fourier Transformation. | 03-03-2011 |
20110096145 | Method and Device for Rendering and Generating Computer-Generated Video Holograms - Method for real-time rendering and generation of computer-generated video holograms from image data with depth information, where in a first mode a 3D rendering graphics pipeline ( | 04-28-2011 |
20110149018 | HOLOGRAPHIC DISPLAY DEVICE COMPRISING MAGNETO-OPTICAL SPATIAL LIGHT MODULATOR - A holographic display device comprising at least one magneto-optical spatial light modulator (MOSLM). The holographic display device may comprise a first MOSLM and a second MOSLM, the first and second MOSLMs encoding a hologram and a holographic reconstruction being generated by the device. An advantage of the device is fast encoding of holograms. | 06-23-2011 |
20110216160 | SYSTEM AND METHOD FOR CREATING PSEUDO HOLOGRAPHIC DISPLAYS ON VIEWER POSITION AWARE DEVICES - A pseudo holographic visual effect is produced by acquiring at least two actual images of a subject wherein each image represents a different viewing angle of the single subject. Intermediary images corresponding to other viewing angles of the subject may be extrapolated from the two actual images or two adjacent images if a sufficient number of actual images are not available to create the desired level of resolution. To create the effect, an initial start image is displayed. Computer based sensors or camera images from a camera are then used to determine any movement of the device or user from the initial position at which the initial image was displayed. Once movement is detected or once the position of the viewer is determined, the initial image is replaced with an image that corresponds to the change in the detected viewing angle or with an image that corresponds to the viewing angle of the viewer. This creates a pseudo holographic effect whereby the orientation of subject of the image appears to remain fixed despite the display or the viewer being moved. Additional layers for the image can be created by acquiring images of a background separately, creating a set of images that correspond to different viewing angles of the background and overlaying the background images with subject images during display. | 09-08-2011 |
20110249087 | MULTIPLE VIEW DISPLAY OF THREE-DIMENSIONAL IMAGES - Systems, methods, and devices that generate and display a multiple view 3-D holographic image (“image”) of a 3-D real or synthetic scene are presented. A projection system captures visual information of the 3-D scene from various perspectives and generates model data to create a 3-D model of the scene. The model data is converted to holographic data, which is respectively portioned corresponding to the respective perspectives of the scene and used to generate and display respective portions of the image on respective display sections. The display sections can be separate display sections corresponding to the various perspectives, or the display sections can be on a single display that is divided into sections for the various perspectives and a 3-D adapter is employed to facilitate display of the image in the display area, wherein reflector components can be used to reflect the portions of the image to the display area. | 10-13-2011 |
20110261154 | LIGHT SHIFT COMPENSATION DEVICE OF IMAGE COMPOSITION DEVICE FOR MULTICOLOR HOLOGRAPHY - A light shift compensation device of an image composition device for the multicolor holography utilizes a light source provider to emit a beam split into an object beam and a reference beam via a beamsplitting unit. The object beam, shined on a projecting unit, is transformed into an object wave for projecting two-D images of the object on a negative. The reference beam is transformed into a reference wave by a compensating unit to adjust the irradiation angle and thence project on the negative. Interference fringes formed by the object wave and the reference wave projecting on the negative record two-D images of the object on the negative. The two-D images projected by the object wave are separated into the red image, the green image, and the blue image, which are directed to the three fundamental colors. The image of one single color is adopted for being recorded on the negative each time. The images of the three fundamental colors are successively processed by three times of double-exposure on the negative to compose a true color image. The angle of projection of the reference wave is adjusted by the compensating unit, so that the angles of diffraction of the green image and the blue image recorded on the negative are changed. | 10-27-2011 |
20110292167 | Interactive virtual thematic environment - The present invention is directed to a method of integrating information, including real-time information, into a virtual thematic environment using a computer system, including accessing the stored information from a database or downloading the real-time information from a source external to the thematic environment; inserting the real-time information into the thematic environment; and displaying the information to a user within the thematic environment. In one embodiment, the computer system is connected to a holographic projection system such that the images from the thematic environment can be projected as holographic projections. The computer system includes an interactive software application platform having at least one thematic/publishing logic module which contains thematic environment rules; at least one digital content library module which provides content management on the thematic environment; and at least one quantum imaging environment (QIE) module which interprets content such that the content is manipulated and accessed by any device. | 12-01-2011 |
20120007946 | HOLOGRAM REPRODUCTION IMAGE PROCESSING APPARATUS AND PROCESSING METHOD - A holographic reproduction image processing apparatus includes: a detecting section detecting the luminance of a plurality of pixels in an area of a holographic reproduction image extending in a direction substantially orthogonal to a direction in which the image has luminance variation; and an image processing section correcting the luminance variation according to luminance information supplied from the detecting section. | 01-12-2012 |
20120044320 | High resolution 3-D holographic camera - A high resolution 3-D holographic camera. A reference spot on a target is illuminated by three spatially separated beamlets (simultaneously produced from a single laser beam), producing a lateral shear of a wavefront on the target. The camera measures the resulting reflected speckle intensity pattern which are related the gradient of the interfered complex fields. At the same time a flood beam illuminates the entire target and reflected speckle is also recorded by the same camera to provide the necessary object spatial frequencies. The illumination patterns are sequenced in time, stepping through offset phase shifts to provide data necessary to reconstruct an image of the target from the recorded reflected light. The reference spot phase and amplitude are then reconstructed, and the reference spot's complex field is then digitally interfered with the flood illuminated speckle field by use of a special algorithm. In order to obtain a high resolution 3D image of the target, a second measurement is acquired with the laser beam slightly shifted in frequency to second color. | 02-23-2012 |
20120069142 | PSEUDO-HOLOGRAPHIC REPRESENTATION - A method for generating a pseudo holographic image ( | 03-22-2012 |
20120105580 | Holographic Apparatus and Method - The invention relates to a method of and apparatus for displaying a holographically generated video image having plural video frames. For each period there is provided a respective sequential plurality of holograms. The holograms of the plural video frames are displayed for viewing the replay field thereof, and the noise variance of each frame is perceived as attenuated by averaging across said plurality of holograms. | 05-03-2012 |
20120147134 | APPARATUS AND A METHOD FOR RECONSTRUCTING A HOLOGRAM - An apparatus and method for reconstructing a hologram are disclosed. An illuminator emits a reference beam, a hologram display driver displays an interference pattern based on a video signal, a lens unit adjusts a magnification and a focus of a hologram reproduced by projecting the emitted reference beam onto the displayed interference pattern, and a scanning unit scans the adjusted hologram to pixels of a screen by controlling a direction of the adjusted hologram. | 06-14-2012 |
20120218379 | INCOHERENT LENSFREE CELL HOLOGRAPHY AND MICROSCOPY ON A CHIP - A system for imaging a cytological sample includes a sample holder configured to hold a cytological sample. A spatial filter is disposed at a distance z | 08-30-2012 |
20120229598 | Method of Transmitting Holograms Electronically and Storing 3D Image in a Hologram and Restoring and Reproducing the 3D Image for Viewing - A high frequency modulated laser beam is used to illuminate an object and a suitable detector and/or CCD camera is used to record or photograph the interference pattern with proper optical resolution to produce a hologram that can store 3M image. The recorded or photographed image or interference pattern produced by the laser beam is then exposed to a reconstruction laser beam that is a high frequency modulated beam to restore the hologram and reproduce or transfer the image so that it can be viewed in full 3M on a suitable device such as a television or motion picture screen. | 09-13-2012 |
20120249731 | Method and Apparatus for Volumetric and Holographic Video, N-View Human Eye Depth Cuing Autostereoscopic Display and Transmission - The present invention is a general purpose, modular, portable, integrated system for synthesizing real-time color, depth, occlusion, and transparency data into formats for Volumetric and Holographic Rendering, Coding and Delivery. | 10-04-2012 |
20120314021 | GENERATING AN AERIAL DISPLAY OF THREE-DIMENSIONAL IMAGES FROM A SINGLE TWO-DIMENSIONAL IMAGE OR A SEQUENCE OF TWO-DIMENSIONAL IMAGES - Systems, methods, and devices that generate and display a multiple view 3-D holographic image (“image”) of a 3-D real or synthetic scene are presented. A capture system can capture or generate as little as a single 2-D image, or a sequence of 2-D images, of a scene and can convert the 2-D visual information to facilitate generating a 3-D scene from various perspectives. Predefined distortion morphing or transition morphing is employed to generate one or more morphing images to reconstruct different perspectives of the scene without having to capture such different perspectives. A sequence of 2-D images, including the morphing images, each representing a respective view of the scene are integrated to form a 3-D integrated image, which can be displayed on a 3-D aerial projection system. The disclosed subject matter can generate and/or maintain disparity information to improve quality of the display of the 3-D integrated image. | 12-13-2012 |
20130076857 | SCANNER DEVICE AND DEVICE FOR MEASURING THREE-DIMENSIONAL SHAPE OF OBJECT - A laser beam is reflected by a light beam scanning device and irradiated onto a hologram recording medium. On the hologram recording medium, an image of a linear scatter body is recorded as a hologram by using reference light that converges on a scanning origin. The light beam scanning device bends the laser beam at the scanning origin and irradiates the laser beam onto the hologram recording medium. At this time, by changing a bending mode of the laser beam with time, an irradiation position of the bent laser beam on the hologram recording medium is changed with time. Diffracted light from the hologram recording medium produces a reproduction image of the linear scatter body on a light receiving surface of the stage. When an object is placed on the light receiving surface, a line pattern is projected by hologram reproduction light, so that the projected image is captured and a three-dimensional shape of the object is measured. | 03-28-2013 |
20130088568 | Digital Holographic Method of Measuring Cellular Activity and Measuring Apparatus with Improved Stabililty - Motility contrast imaging (MCI) is a depth-resolved holographic technique to extract cellular and subcellular motion inside tissue. The holographic basis of the measurement technique makes it highly susceptible to mechanical motion. The motility contrast application, in particular, preferably includes increased mechanical stability because the signal is based on time-varying changes caused by cellular motion, which should not be confused with mechanical motion of the system. Apparatus for motility contrast imaging that provides increased mechanical stability is disclosed. It is based on common-path configurations, in which the signal and reference beams share optical elements in their paths to the detector. The two beams share mechanical motions in common, and hence these motions do not contribute to the signal. | 04-11-2013 |
20130100241 | Holographic Microscope, Microscopic Subject Hologram Image Recording Method, Method of Creation of Hologram for Reproduction of High-Resolution Image, and Method for Reproduction of Image - An interference fringe pattern (I | 04-25-2013 |
20130127986 | COMMON HOLOGRAPHIC IMAGING PLATFORM - An imaging system and method is provided with transition in depth of field, the system comprising: an array of selectably activated sensors comprising first sensors receiving light of a first wavelength and second sensor receiving light of a second wavelength, the first wavelength corresponding to a short effective focal length and the second wavelength corresponding to a long effective focal length; an aperture common to both the first and second sensors configured with chromatic distortion such that a focal plane of light of the first wavelength is different from light of the second wavelength; a controller, the controller digitally between outputs of the first and second sensors based on the focal length required. | 05-23-2013 |
20130141527 | Video Display Device, Head-Mounted Display and Head-up Display - A video display device is provided with a light source, a display element, and an eyepiece optical system ( | 06-06-2013 |
20130188011 | INFORMATION RECORDING APPARATUS, INFORMATION REPRODUCING APPARATUS AND RECORDING MEDIA - An apparatus for recording information in an optical-information recording media by holography includes a signal-light irradiation unit, a reference-light irradiation unit, a reference light angle adjustment unit, and a positioning unit for positioning irradiation positions of the signal light and the reference light. The optical-information recording media is divided into N (N≧2) recording regions, M multiplexed information can be recorded in the respective recording regions by the reference light angle adjustment unit which changes the angle of the reference light at M angles (θ | 07-25-2013 |
20130215218 | Optical Target Detection - An optically-based target detection system includes a holographic detection filter designed to produce a concentrated spot when a target is present. | 08-22-2013 |
20130250049 | ANALYTIC METHOD FOR COMPUTING VIDEO HOLOGRAMS IN REAL TIME - An analytical method for computing a video hologram for a holographic reproduction device having at least one light modulation means is disclosed, wherein a scene split into object points is encoded as a whole hologram and can be seen as a reconstruction from a visibility region, located within a periodicity interval of the reconstruction. The visibility region, together with each object point of the scene to be reconstructed, defines a subhologram and the whole hologram is generated from a superposition of subholograms, wherein the complex hologram values of a subhologram are determined from the wave front of the respective object point to be reconstructed in a modulator region of the light modulation means, by calculating and evaluating the transmission or modulation functions of an imaging element formed in the modulator region. The object point to be reconstructed is located in the focal point of the imaging element. | 09-26-2013 |
20140071229 | APPARATUS AND METHOD FOR PRESENTATION OF HOLOGRAPHIC CONTENT - A method that incorporates teachings of the subject disclosure may include, for example, receiving, by a system comprising a processor, holographic video data and a descriptor file associated with the holographic video data, where the holographic video data comprises encoded holographic wave front images that are generated by reconstructing holographic interference patterns associated with a target object, determining, by the system, presentation characteristics from the received descriptor file, and presenting, by the system, holographic video content decoded from the holographic video data, at a portion of a display device. Other embodiments are disclosed. | 03-13-2014 |
20140111609 | HOLOGRAPHIC IMAGING DEVICE AND METHOD - Technologies are generally described for reproducing holographic images by causing a photo-induced change in the diffractive index of a holographic recording medium. An example device may include a light irradiation unit and a transparent substrate. The light irradiation unit can be configured to transmit a photo-inducing light. Further, the transparent substrate may have a predetermined refractive index and can be configured to include a first surface and a second surface opposite the first surface. The first surface can be configured to receive an incident light, and the second surface can be configured to receive the photo-inducing light. The transparent substrate can be configured to form interference fringe patterns from a photo-induced change in the refractive index of the transparent substrate responsive to the photo-induced light. | 04-24-2014 |
20140132710 | HOLOGRAPHIC IMAGE GENERATION AND RECONSTRUCTION - Technologies are generally described for generating and recording holograms of an object using a plurality of light sources and an array of image sensors arranged to surround the object. In various examples, an apparatus may be configured to irradiate a plurality of light beams from multiple light sources to a corresponding number of beam splitters, which are configured to generate a first portion of the light beams that can be irradiated on the object, and a second portion of the light beams that can be reflected by a mirror unit to generate reference beams. Some apparatus can also include an array of image sensors that may be configured to receive images of interference caused by the reference beams and object beams scattered by the object. | 05-15-2014 |
20140139625 | METHOD AND SYSTEM FOR DETECTING AND/OR CLASSIFYING CANCEROUS CELLS IN A CELL SAMPLE - The current invention concerns a method for detecting cancerous cells and/or classifying cells in a cell sample comprising the following steps: providing a cell sample; obtaining holographic information from said cell sample by digital holographic microscopy (DHM); deriving at least one cellular parameter from said holographic information, and; classifying said cells of cells sample; characterized in that said classification occurs by appointing a Scoring Factor to said cells of cell sample, based on said cellular parameters. In a second aspect, a system for the detection of cancerous cells and/or classification of cells in a cell sample is provided, employing the method as disclosed in the invention. In a final aspect, a method for updating and/or improving a database comprising thresholds linked to holographic information and the database related thereof is equally disclosed. | 05-22-2014 |
20140146133 | TRANSPARENT HOLOGRAPHIC DISPLAY WITH DYNAMIC IMAGE CONTROL - Generally, this disclosure provides systems and methods for generating three dimensional holographic images on a transparent display screen with dynamic image control. The system may include a transparent display screen that includes an array of pixels; a driver circuit configured to control each of the pixels in the array of pixels such that the transparent display screen displays an interference fringe pattern, the interference fringe pattern associated with a hologram; and a coherent light source configured to illuminate the transparent display screen with coherent light, wherein transformation of the coherent light by the interference fringe pattern generates a three dimensional holographic image. | 05-29-2014 |
20140160236 | LENSFREE HOLOGRAPHIC MICROSCOPY USING WETTING FILMS - A method of imaging a sample includes forming a monolayer wetting layer over a sample containing objects therein. A plurality of lower resolution images are obtained of the sample interposed between an illumination source and an image sensor, wherein each lower resolution image is obtained at discrete spatial locations. The plurality of lower resolution images of the sample are converted into a higher resolution image. One or more of an amplitude image and a phase image are reconstructed of the objects contained within the sample. | 06-12-2014 |
20140176671 | APPARATUS FOR DISPLAYING A HOLOGRAM - An apparatus for displaying a hologram comprises: a hologram display panel that represents light having the hologram images to an observer; a detecting camera that decides a position of the observer; a deflector that forms a prism pattern to refract the light corresponding to the detected position of the observer; and a deflector driver that supplies a driving voltage corresponding to a inclined angle for forming the prism pattern, wherein the deflector includes: a plurality of first electrodes running to a first direction and divided into a plurality of electrode groups; a plurality of connection electrodes running to a second direction crossing with the first direction, and connecting same numbered first electrodes of the electrode groups, wherein each end of the connection electrodes forms a pad portion; and a second electrode facing to the plurality of the first electrodes with a liquid crystal cell therebetween. | 06-26-2014 |
20140192146 | APPARATUS AND METHOD FOR DISPLAYING HOLOGRAM IMAGE - Provided is an apparatus and method for displaying a hologram image that may display a hologram image created by tracking a position of a pupil of a user using an acquired user image, tracking a position of a light source of a reflection hologram image that is reflected from appearance of the user, and by correcting a position of a light source of a display hologram image based on the position of the pupil of the user. | 07-10-2014 |
20140210942 | FAST PROCESSING OF INFORMATION REPRESENTED IN DIGITAL HOLOGRAMS - Techniques for fast processing of information represented in digital holograms to facilitate generating and displaying 3-D holographic images representative of a 3-D object scene are presented. A holographic generator component (HGC) can receive or generate information representing a 3-D object scene. In real or near real time, the HGC can back-project a hologram to a virtual 2-D image known as a virtual diffraction plane (VDP); process the VDP to enhance optical properties of the VDP to facilitate enhancing or adjusting the optical properties of the 3-D holographic images when displayed by a display component; and expand the VDP to facilitate generating 3-D holographic images that can represent or recreate the 3-D object scene. The HGC can thereby process digital 3-D holograms of moderate size and display 3-D holographic images generated from the processed 3-D holograms at a desirably fast video rate. | 07-31-2014 |
20140267597 | Apparatus and Method for Generating Interference Fringe Pattern - An apparatus for generating holograms includes a laser source configured to emit a laser beam with a frequency of v; an acoustic optical modulator configured to generate, from the laser beam, a first beam with a frequency of v | 09-18-2014 |
20140267598 | APPARATUS AND METHOD FOR HOLOGRAPHIC POSTER DISPLAY - The invention generally relates to holographic posters and computer controlled systems for communicating information. The invention provides a computer-based holographic poster device that displays holographic images and videos for interacting with interested users via, for example, their motions and gestures or their personal devices such as smartphones. A holographic poster device has a body such as a pedestal supporting a display area (e.g., a few feet above the floor) and is operable to make a holographic image appear in the display area. | 09-18-2014 |
20140300694 | Anisotropic Leaky-Mode Modulator for Holographic Video Displays - An anisotropic spatial acousto-optic modulator for a holographic display system includes a substrate, an anisotropic waveguide that guides light into a single polarization, and a transducer that generates surface acoustic waves that propagate linearly with the guided, polarized light, converting at least some of the polarized light into a leaky mode of orthogonally polarized light. The acoustic waves may be encoded with holographic information. The modulator may include coupling devices for coupling light into the waveguide, which may have multiple channels. A holographic video display system includes at least one anisotropic spatial acousto-optic modulator. The pattern of the surface acoustic waves, encoded with holographic information, acts as a diffraction pattern that causes the modulator output to form a wavefront that becomes at least part of a holographic image. The system may have multiple channels in multiple waveguides, wherein each waveguide writes one or more lines of the holographic image. | 10-09-2014 |
20140300695 | Full-Parallax Acousto-Optic/Electro-Optic Holographic Video Display - A full-parallax acousto-optic/electro-optic holographic video display includes a control layer and a piezo-electric layer, which includes a substrate and an array of anisotropic waveguide elements. Each waveguide element guides light into a single polarization and includes a horizontal grating, which diffracts light horizontally and comprises surface acoustic waves, and vertical grating, which diffracts light vertically and includes an electro-optic phased array. The surface acoustic waves propagate linearly with the guided, polarized light in the waveguide, converting the polarized light into a leaky mode of orthogonal polarized light. The combination of the horizontal and vertical gratings allows the waveguide element to focus light to multiple points and steer it in order to form a holographic image. The horizontal grating may be generated by interdigital acousto-optic transducers and the vertical grating may be controlled by electro-optic transducers. Each waveguide element may be subdivided into sub-waveguides that form the electro-optic phased array. | 10-09-2014 |
20140300696 | MASKLESS IMAGING OF DENSE SAMPLES USING MULTI-HEIGHT LENSFREE MICROSCOPE - A method of imaging includes illuminating a sample spaced apart from an image sensor at a multiple distances. Image frames of the sample obtained at each distance are registered to one another and lost phase information from the registered higher resolution image frames is iteratively recovered. Amplitude and/or phase images of the sample are reconstructed based at least in part on the recovered lost phase information. | 10-09-2014 |
20140320596 | Method of remote presentation of a live sporting activity - A method of presenting a sporting event at a plurality of venues in real time or nearly real time. The images and sounds of persons participating in a live sporting event at a live venue are captured using a plurality of cameras and microphones. The captured images and sounds are presented at the remote venue. The captured images are presented as holographic images in real time or nearly real time using a plurality of holographic image presentation devices. The seats at the remote venue may be configured to emulate the configuration of seats at the live venue. | 10-30-2014 |
20140327735 | PORTABLE DIGITAL HOLOGRAPHIC PROBE FOR THE INSPECTION OF OPTICAL FIBER CONNECTORS, AND INSPECTION SYSTEM AND METHOD FOR THE SAME - A portable inspection probe for the inspection of a recessed mating surface of an optical fiber connector is provided. In one variant, the portable inspection probe includes a digital holographic detection module operable to digitally record a hologram of the recessed mating surface, and a rigid probe tip configured to be optically coupled to the digital holographic detection module and shaped to provide optical access to the recessed mating surface. In another variant, the portable inspection probe is to be used with a rigid probe tip connectable thereto, and the digital holographic detection module includes a probing optical assembly not traversed by a reference beam and configured to direct an object beam onto the recessed mating surface and to collect the object beam upon reflection thereof by the recessed mating surface. An inspection system and an inspection method are also provided. | 11-06-2014 |
20140340476 | DIGITAL HOLOGRAPHIC MICROSCOPE - A digital holographic microscope is provided. The digital holographic microscope includes a light source, a grating, an image sensing device, and an optical module. The light source is configured for providing a light beam. The grating is disposed between the light source and a sample. The grating is configured for splitting the light beam into a reference light beam and an object light beam. The image sensing device is configured for collecting the reference light beam, and collecting the object light beam reflected from the sample. The optical module is disposed between the light source and the sample, and is configured for guiding the reference light beam to the image sensing device, and guiding the object light beam to the sample. | 11-20-2014 |
20140375763 | OASLM-BASED HOLOGRAPHIC DISPLAY - Provided is an optically addressable spatial light modulator (OASLM)-based holographic display and a method of operating the same. The display includes an addressing unit including a light source unit emitting a plurality of recording beams, a driving mirror array including driving mirrors that each reflect a recording beam incident thereon, and a mirror member array including mirror members that each obliquely reflect a recording beam incident thereon, in which each of the driving mirrors corresponds to one of the mirror members. The recording beams, which are transmitted by the addressing unit, are focused onto the OASLM by micro lenses of a lenslet array. The OASLM is optically addressed by the recording beams focused by the micro lenses of the lenslet array and thus modulates and diffracts a reproduction beam, incident thereon from a reproduction beam providing unit, and thus a holographic image is reproduced. | 12-25-2014 |
20150077514 | HOLOGRAPHIC IMAGING - Technologies are generally described for generating an image in a holographic imaging device by causing multiple reflections of a hologram reconstruction light on one side of a display panel in the holographic imaging device. An example device may include a display panel, a semi-transparent mirror layer on the display panel, a mirror layer at a side of the semi-transparent mirror layer opposite to the display panel, and a light irradiation unit opposite to the semi-transparent mirror layer. The light irradiation unit may irradiate a hologram reconstruction light on the semi-transparent mirror layer at a predetermined incident angle. The semi-transparent mirror layer may reflect a portion of the hologram reconstruction light such that the reflected portion of the hologram reconstruction light may be incident on the mirror layer. The semi-transparent mirror layer may transmit the other portion of the hologram reconstruction light to cause interference in the hologram. | 03-19-2015 |
20150085069 | HOLOGRAPHIC IMAGE GENERATION AND RECONSTRUCTION - Technologies are generally related to holographic imaging. In some examples, techniques are described for generating a holographic image of an object using a plurality of light sources, a shutter, and an image sensor array. Each of the light sources is configured to generate a light beam using a respective wavelength in a different range. In various examples, an apparatus as described here may be configured to control the shutter to receive the light beams from the plurality of light sources and selectively pass each of the received light beams to provide a selected light beam. The apparatus may further include a beam splitter and a mirror unit configured to generate an object light beam and a reference light beam from the selected light beam. The apparatus may include an image sensor array configured to detect an image of interference caused by the reference light beam and the object light beam. | 03-26-2015 |
20150097925 | APPARATUS AND METHOD FOR DISPLAYING HOLOGRAM BASED ON PUPIL TRACKING USING HYBRID CAMERA - Provided are an apparatus and a method for displaying a hologram based on pupil tracking using a hybrid camera, wherein a hologram display apparatus includes a pupil tracker to track a location of a pupil of a user using a depth image and a color image generated by capturing an image of the user, a viewing window controller to control a viewing window of a hologram based on the tracked location of the pupil of the user, and a hologram generator to generate a hologram based on the controlled viewing window. | 04-09-2015 |
20150103140 | VOLUME HOLOGRAPHIC IMAGING SYSTEM (VHIS) ENDOSCOPE - Provided are modular volume holographic imaging system (VHIS) endoscopic systems, comprising: an endoscope attachment module having a microscope objective lens, a single or cascaded compensated relay system configured to preserve an optical wavefront for use with a single or multiplexed volume hologram to select wavefronts originating from different object depths, and a system aperture; and a handle module configured to be reversibly attachable for operative communication with the endoscope attachment module, and having a beam splitter; a relay having adjustable spacing for object space focus compensation, and a single or multiplexed volume hologram suitable in operation to select wavefronts originating from different object depths, and wherein the handle module is further configured for operative communication with an illumination source and imaging optics. Preferably, an illumination module and an imaging module are configured to be in operative, reversibly attachable communication with the handle module. Flexible tip endoscopic embodiments are provided. | 04-16-2015 |
20150116454 | MOBILE TERMINAL AND SYSTEM FOR CONTROLLING HOLOGRAPHY PROVIDED THEREWITH - The present disclosure provides a mobile terminal comprising: a main body of the terminal; a holography module attached to the main body of the terminal and positioned so as to output a holographic image into a preset space; and a first camera module arranged in the direction of the preset space so as to film the holographic image. Also, the present invention provides a system for controlling holography comprising the mobile terminal and a target apparatus. The target apparatus is configured so as to film the holographic image by communicating with the mobile terminal or to analyze the holographic image and generate an operational command corresponding thereto. | 04-30-2015 |
20150124050 | METHODS AND APPARATUS FOR ENHANCED REALITY MESSAGING - A method for delivering an enhanced reality message includes recording a holographic image displayed on a matte surface with the built in camera of a mobile electronic device or web-cam. The holographic image is pre-calibrated to the size of the matte surface to create a “life size” image when projected thereonto. The images are accessed via a downloadable web-based application stored on the mobile device. When the recording is concluded it can be shared via e-mail or social media directly from the software. | 05-07-2015 |
20150124051 | Methods and Apparatus for Enhanced Reality Messaging - A method for delivering an enhanced reality message includes recording a holographic image displayed on a matte surface with the built in camera of a mobile electronic device, such as a web-cam, tablet, smartphone, iPhone or the like. The camera takes a photo of the marker and software in an app of the electronic device produces a calibration reference based on the specific marker. The user selects, accesses, and downloads a holographic image from a library of unsealed holograms stored on the mobile device, whereupon the software in the app rescales the selected image as well as all unselected images in the library. The image is recorded and saved for future access, and, if desired, uploaded to the internet for sharing via an e-mail or social media directly from the software. The unsealed holographic image is calibrated, or scaled, to the size of any selected matte surface to create a “life size” image when projected thereonto. | 05-07-2015 |
20150130896 | LIGHT REDIRECTION HOLOGRAM FOR REFLECTIVE DISPLAYS - This disclosure provides systems, methods and apparatus for enhancing the brightness and/or contrast ratio of display devices. In one aspect, the display devices can include a light redirector that is optically coupled with a diffuser. The light redirector includes a plurality of holographic features that can receive near-collimated light at non-normal angles with respect to a normal to a surface of the light redirector and redirects the received light along a direction that is substantially normal to the surface. | 05-14-2015 |
20150293498 | SELF-REFERENCE HOLOGRAPHIC IMAGING SYSTEM - A system for recording a digital hologram of an object comprises: a coherent source intended to illuminate the object and thus produce a wave diffracted by the object; and a digital sensor intended to record the digital hologram of the object. It furthermore comprises a spatial phase modulating assembly able to produce in the plane of the sensor a plurality of duplicates of the wave diffracted by the object, the duplicates being offset from each other but overlapping partially, these duplicates forming on the sensor a digital hologram of the object, this hologram being what is referred to as a self-reference hologram. | 10-15-2015 |
20150304642 | MOBILE TERMINAL - A mobile terminal according to one embodiment of the present invention comprises: a first body and a second body detachably attached to each other; a first light source on the first body so as to provide light to the second body; a first filming unit, on the second body, for forming a first hologram by means of light supplied from the first light source. Thus more diverse holographic images can be produced by replacing the first body. | 10-22-2015 |
20150316892 | SCANNER DEVICE AND DEVICE FOR MEASURING THREE-DIMENSIONAL SHAPE OF OBJECT - A laser beam (L | 11-05-2015 |
20150323991 | SENSORY HOLOGRAMS - A sensory hologram system includes a holographic system generating a holographic image, a sensory imparting system augmenting the holographic image, a detector configured to detect a location of a target, and a processor synchronizing the holographic system and the sensory imparting system based on the location of the target. | 11-12-2015 |
20160085211 | APPARATUS AND METHOD FOR DISPLAYING HOLOGRAPHIC THREE-DIMENSIONAL IMAGE - Provided are an apparatus and a method for displaying a holographic three-dimensional (3D) image. The apparatus includes an image segmenter configured to segment an original image into a plurality of segments, and a calculator configured to calculate diffraction fringe pattern information for displaying each of the plurality of segments as a 3D holographic image. The image segmenter adjusts the number of the plurality of segments. | 03-24-2016 |
20160103321 | HOLOGRAPHIC DISPLAY APPARATUS AND HOLOGRAPHIC DISPLAY METHOD - A holographic display apparatus includes a spatial light modulator configured to generate hologram patterns to modulate light; an illuminator configured to emit the light to the spatial light modulator; and a controller configured to control operations of the spatial light modulator and the illuminator, the spatial light modulator being configured to generate, from among the hologram patterns, a first hologram pattern and a second hologram pattern according to the control operations of the controller, the first hologram pattern and the second hologram pattern being configured to form a first hologram image and a second hologram image having different viewpoints, and the controller being configured to set a first phase modulation value of the first hologram pattern and a second phase modulation value of the second hologram pattern to be different from each other such that hologram images having different viewpoints are formed. | 04-14-2016 |
20160103419 | VIDEO DISPLAY AND METHOD PROVIDING VISION CORRECTION FOR MULTIPLE VIEWERS - A video display system for providing vision correction for multiple users may include a display device having a holographic layer and a vision correction layer. The system may also include a processor coupled to the display device to receive a first prescription corresponding to a first user and a second prescription corresponding to a second user, and to modulate the display device so that the first user at a first angle and the second user at a second angle can view a non-distorted image from the display device. | 04-14-2016 |
20160105658 | APPARATUS AND METHOD FOR DIGITAL HOLOGRAPHIC TABLE TOP DISPLAY - Disclosed is an apparatus and method for digital holographic table top display. The digital holographic table top display apparatus includes: a camera array configured to capture a plurality of channel images in an omni-directional range from a table by using a plurality of cameras; a controller configured to detect an observer from the plurality of channel images and to track a position of pupils of the observer in at least one channel image from which the observer is detected; and a display configured to reproduce a digital holographic image in a three-dimensional (3D) space according to the tracked position of the pupils. | 04-14-2016 |
20160116886 | EXHIBITION DEVICE AND VIDEO PICTURE EXHIBITION METHOD - In an exhibition device and a video picture exhibition method according to the present invention, at least one exhibition object for reinforcing the three-dimensional effect of a spatial image is disposed in a region other than an upper surface of an image-forming optical element (micromirror array) in an upper surface of an enclosure (case) of the device and at a position where a distance from the center of a virtual display area of the spatial image projected from a display to over the enclosure thereto is not greater than a diagonal length of the virtual display area or at a position where the distance is not greater than a maximum diameter of the virtual display area. This achieves the effective display of an impressive two-dimensional video picture appearing three-dimensional in association with the exhibition object disposed on the upper surface. | 04-28-2016 |
20160116887 | IMAGING DEVICE, CONTROL DEVICE, AND INFORMATION REPRODUCTION DEVICE - In an imaging element having a function for partially transmitting image data of a partial region on an image-capturing surface, when an input/output interface of the imaging element becomes a limitation factor of a frame rate, it is desired to improve the frame rate by devising a driving method. By providing a table for storing coordinate ranges of a plurality of regions, image data of the plurality of the coordinate ranges are continuously or alternately transmitted. | 04-28-2016 |
20160139560 | PROJECTOR DISPLAY SYSTEMS HAVING NON-MECHANICAL MIRROR BEAM STEERING - Dual or multi-modulation display system are disclosed that comprise projector systems with at least one modulator that may employ non-mechanical beam steering modulation. Many embodiments disclosed herein employ a non-mechanical beam steering and/or polarizer to provide for a highlights modulator. | 05-19-2016 |
20160154458 | DISTANCE ADAPTIVE HOLOGRAPHIC DISPLAYING METHOD AND DEVICE BASED ON EYEBALL TRACKING | 06-02-2016 |
20160165205 | HOLOGRAPHIC DISPLAYING METHOD AND DEVICE BASED ON HUMAN EYES TRACKING - A holographic displaying method and device based on human eyes tracking are disclosed. The holographic displaying method includes the following steps of: tracking human eyes of a viewer in real time and acquiring an image of the human eyes; determining whether coordinates of the both eyes can be determined according to the tracked image of the human eyes; and decreasing a transforming depth of field of the displayed 3D image when the coordinates of the both eyes cannot be determined according to the tracked image of the human eyes. In the aforesaid way, the present disclosure allows users to view clear 3D images even if the camera cannot track positions of the human eyes clearly. | 06-09-2016 |
20160187649 | DEVICE FOR IMPROVING THE VISION OF A HUMAN EYE - A device for improving the vision of an eye of a human being includes optical elements for forming an image of a scene; a controllable projector having an input and mounted to co-operate with the optical elements, and suitable for outputting a beam; a mirror; elements for linking the mirror to the orbit and to the projector in such a manner that the optical axis of the mirror passes through the center of rotation of the eye and that the mirror is on the light path of the beam; a sensor for determining the rotation of the eye relative to its orbit, and elements for applying the signal output from the sensor to the input of the projector so as to cause the image light beam to be projected on a location of the mirror that is a function of the rotation of the eye in its orbit. | 06-30-2016 |
20160195849 | FACILITATING INTERACTIVE FLOATING VIRTUAL REPRESENTATIONS OF IMAGES AT COMPUTING DEVICES | 07-07-2016 |
20160377724 | METHOD AND SYSTEM FOR THREE DIMENSIONAL DIGITAL HOLOGRAPHIC APERTURE SYNTHESIS - Laser 3D imaging techniques include splitting a laser temporally-modulated waveform of bandwidth B and duration D from a laser source into a reference beam and a target beam and directing the target beam onto a target. First data is collected, which indicates amplitude and phase of light relative to the reference beam received at each of a plurality of different times during a duration D at each optical detector of an array of one or more optical detectors perpendicular to the target beam. Steps are repeated for multiple sampling conditions, and the first data for the multiple sampling conditions are synthesized to form one or more synthesized sets. A 3D Fourier transform of each synthesized set forms a digital model of the target for each synthesized set with a down-range resolution based on the bandwidth B. | 12-29-2016 |
20160381329 | High Luminance Projection Displays And Associated Methods - Projection displays include a highlight projector and a main projector. Highlights projected by the highlight projector boost luminance in highlight areas of a base image projected by the main projector. Various highlight projectors including steerable beams, holographic projectors and spatial light modulators are described. | 12-29-2016 |