CARESTREAM HEALTH, INC. Patent applications |
Patent application number | Title | Published |
20160131770 | DIGITAL RADIOGRAPHY DETECTOR - Described is a scintillator screen including a plurality of filaments. Each of the plurality of filaments includes scintillating particles dispersed within a thermoplastic polymer. The thermoplastic polymer includes an elastic additive. The scintillating particles are from about 10 volume percent to about 60 volume percent of each of the plurality of filaments. Each of the plurality of filaments has a refractive index of greater than or equal to 1.5. The plurality of filaments are substantially parallel to each other and are at a volume packing of from about 60 percent to about 90 percent. | 05-12-2016 |
20150320371 | DIRECTED X-RAY FIELDS FOR TOMOSYNTHESIS - Radiographic imaging systems and/or methods embodiments capable of both tomosynthesis x-ray imaging and general projection radiography x-ray imaging can include a single x-ray source assembly including a plurality of distributed x-ray sources, where at least one of the plurality of distributed x-ray sources is configured to output a beam sufficient for standard projection radiography, and each of at least two of the plurality of distributed x-ray sources is configured to output a beam at a lower radiation dose sufficient for tomosynthesis. In one embodiment, radiographic imaging systems and/or methods embodiments can include a single x-ray source; a first collimator that is configured to be adjustable for at least two dimensions; and a second collimator that is configured to provide fixed collimation. In one embodiment, a single x-ray source can include a single radiation shield or a single vacuum chamber. | 11-12-2015 |
20150301198 | DIGITAL RADIOGRAPHY DETECTOR - Described is a scintillator screen including a plurality of filaments. Each of the plurality of filaments includes scintillating particles dispersed within a thermoplastic polymer. The thermoplastic polymer includes an elastic additive. The scintillating particles are from about 10 volume percent to about 60 volume percent of each of the plurality of filaments. Each of the plurality of filaments has a refractive index of greater than or equal to 1.5. The plurality of filaments are substantially parallel to each other and are at a volume packing of from about 60 percent to about 90 percent. | 10-22-2015 |
20150257717 | EXTREMITY IMAGING APPARATUS FOR CONE BEAM COMPUTED TOMOGRAPHY - An apparatus for cone beam computed tomography can include a support structure, a scanner assembly coupled to the support structure for controlled movement in at least x, y and z orientations, the scanner assembly can include a DR detector configured to move along at least a portion of a detector path that extends at least partially around a scan volume with a distance D | 09-17-2015 |
20150223767 | RAPID FRAME-RATE WIRELESS IMAGING SYSTEM - A method for defining the shape of a radiation beam that is directed toward a subject and to a free-standing imaging detector detects the position and orientation of the imaging detector relative to a radiation source, then adjusts an aperture that lies in the path of the radiation beam to shape the beam for incidence on a predetermined area of the detector according to the detected imaging detector position. The radiation source is energized to emit the shaped radiation beam and the image data about the subject is acquired from the imaging detector. | 08-13-2015 |
20150150524 | CONE BEAM COMPUTED TOMOGRAPHY VOLUMETRIC IMAGING SYSTEM - Embodiments of methods and/or apparatus for a radiographic imaging can include a plurality of x-ray sources disposed in a curve and a detector configured to revolve relative thereto. In one embodiment, a CBCT imaging method and/or apparatus can include performing a first scan at a first speed using stationary angularly distributed x-ray sources to acquire first CBCT projection data that impinge a detector of a first field of view (FOV), identifying an area of interest within the first FOV, and performing a second scan at a second speed using the x-ray sources acquire second CBCT projection data that impinge a portion of the detector of a second smaller FOV including the area of interest within the first FOV using second emissions by the x-ray sources, where the second speed is greater than the first speed. | 06-04-2015 |
20140352144 | METHODS FOR IMPROVING ELECTRICAL ISOLATION OF PATTERNED TRANSPARENT CONDUCTIVE FILMS - Claimed methods reduce leakage currents in transparent conductive films comprising conductive nanostructures without substantially impairing the films' optical properties or physical integrity. Imposition of electrical stimuli to separate conductive regions leads to reduced conductivity of the intervening lesser conductive regions. | 12-04-2014 |
20140255707 | STABILIZATION AGENTS FOR SILVER NANOWIRE BASED TRANSPARENT CONDUCTIVE FILMS - Certain compounds comprising at least one carboxyl group have been found to provide anti-corrosion properties when incorporated into silver nanowire containing films. Such compounds may be incorporated into one or more silver nanowire containing layers or in one or more layers disposed adjacent to the silver nanowire containing layers. | 09-11-2014 |
20140185892 | METHOD FOR QUANTIFYING CARIES - A method for quantifying caries, executed at least in part on data processing hardware, the method comprising generating a digital image of a tooth, the image comprising intensity values for a region of pixels corresponding to the tooth, gum, and background; extracting a lesion area from sound tooth regions by identifying tooth regions, extracting suspicious lesion areas, and removing false positives; identifying an adjacent sound region that is adjacent to the extracted lesion area; reconstructing intensity values for tooth tissue within the lesion area according to values in the adjacent sound region; and quantifying the condition of the caries using the reconstructed intensity values and intensity values from the lesion area. | 07-03-2014 |
20140168669 | HIGH DENSITY INK-JET PRINTING ON A TRANSPARENCY - A method for printing on transparent medium using an ink-jet printer. The method includes providing a grayscale image having a plurality of pixels, each pixel having a pixel value corresponding to a brightness of the pixel; converting each pixel value to an ink output value for the ink-jet printer using a conversion function, wherein the conversion function maps the darkest pixel value to an optical density of greater than 2.5 and maps all other pixel values to an appropriate output pixel value such that a resulting printed image is perceived to be linearly bright across the image. | 06-19-2014 |
20140146946 | FIRING DELAY FOR RETROFIT DIGITAL X-RAY DETECTOR - A method and apparatus are disclosed for obtaining an x-ray image from an x-ray imaging apparatus using a digital radiography receiver installs a retrofit connection apparatus that adapts the x-ray imaging apparatus for use with the digital radiography receiver by forming a receiver interface channel for communicating signals to and from the digital radiography receiver, forming an operator interface channel for routing at least an input expose signal from an operator control to the connection apparatus and forming a sensor interface channel to receive at least an active x-ray emission signal from a sensor positioned operatively near an x-ray system of the x-ray imaging system of the type configured for film or computed radiography. An input expose signal over the operator interface channel can initiate a reset of the digital radiography receiver over the receiver interface channel. | 05-29-2014 |
20140126895 | THERMAL PROCESSOR EMPLOYING RADIANT HEATER - A thermal processor including a rotatable hollow drum including a drum core having an interior surface and an exterior surface, and a radiant heater positioned within an interior of the drum and configured to provide radiant energy to heat the drum, wherein at least one radiant energy absorption characteristic of the interior of the drum varies across its longitudinal width W | 05-08-2014 |
20140119980 | NOVEL SOLVENTS FOR METAL ION REDUCTION METHODS, COMPOSITIONS, AND ARTICLES - Methods employing novel solvents are disclosed for making metal nanostructures including metal nanowires. Such methods can be carried out at lower temperatures and higher production rates than those employing ethylene glycol. The products of these methods are useful for electronics applications. | 05-01-2014 |
20140050376 | METHOD FOR IDENTIFYING A TOOTH REGION - A method for identifying tooth regions. The method includes generating a first threshold image from a first tooth image by selecting intensity data values higher than a first predetermined threshold value c | 02-20-2014 |
20140030670 | DENTAL SHADE MAPPING - A method and apparatus for generating a color mapping for a dental object. The method includes generating a transformation matrix according to a set of spectral reflectance data for a statistically valid sampling of teeth. Illumination is directed toward the dental object over at least a first, a second, and a third wavelength band, one wavelength band at a time. For each of a plurality of pixels in an imaging array, an image data value is obtained, corresponding to each of the at least first, second, and third wavelength bands. The transformation matrix is applied to form the color mapping by generating a set of visual color values for each of the plurality of pixels according to the obtained image data values and according to image data values obtained from a reference object at the at least first, second, and third wavelength bands. The color mapping can be stored in an electronic memory. | 01-30-2014 |
20140028454 | SYSTEM TO MONITOR THE INGESTION OF MEDICINES - A system for monitoring ingestion of medicine ( | 01-30-2014 |
20140014847 | RADIOGRAPHIC IMAGING ARRAY FABRICATION PROCESS FOR METAL OXIDE THIN-FILM TRANSISTORS WITH REDUCED MASK COUNT - Embodiments of radiographic imaging systems; radiography detectors and methods for using the same; and/or fabrication methods therefore can include radiographic imaging array that can include a plurality of pixels that each include a photoelectric conversion element coupled to a thin-film switching element. In certain exemplary embodiments, thin-film switching element is a metal oxide (e.g., a-IGZO) TFT manufactured using a reduce photolithography mask counts. In certain exemplary embodiments, the thin-film switching element is a metal oxide (e.g., a-IGZO) TFT that includes reduced lower alignment tolerances between TFT electrodes. In certain exemplary embodiments, the thin-film switching element is a metal oxide (e.g., a-IGZO) TFT including a reduced thickness active layer. | 01-16-2014 |
20130341071 | TRANSPARENT CONDUCTIVE FILM - Transparent conductive films are disclosed and claimed that exhibit high light transmittance, low surface resistance, and superior peel-off adhesion. Such films are useful in electronics applications. | 12-26-2013 |
20130336552 | REGION-SELECTIVE FLUOROSCOPIC IMAGE COMPRESSION - A method for displaying a sequence of fluoroscopic images of a subject defines, within the image area of a digital image receiver and in response to one or more viewer instructions, a region of interest and a background region that lies outside the defined region of interest. A succession of fluoroscopic images is obtained from the digital image receiver and, for image pixels within each of the succession of fluoroscopic images, background region pixel data are encoded and transmitted to the display apparatus using a lossy encoding. Region of interest pixel data is transmitted to the display apparatus using a lossless encoding. The succession of fluoroscopic images is displayed. | 12-19-2013 |
20130336445 | ROI SELECTION FOR IMAGING APPARATUS - A method for acquiring a sequence of fluoroscopic images of a subject acquires and displays a basis image from a fluoroscopic imaging system. A region of interest is defined within the displayed basis image in response to one or more viewer instructions entered on the displayed basis image. One or more signals are generated that adjust the position of one or more components of the fluoroscopic imaging system according to the one or more viewer instructions. | 12-19-2013 |
20130322600 | ROTATION OF AN X-RAY IMAGE ON A DISPLAY - A method for controlling the angular orientation of an x-ray image on a display for a viewer displays at least one rotation mode selector on the display. A viewer instruction selects the rotation mode. An overlay displays with the x-ray image, wherein the overlay provides a center of rotation. A viewer instruction identifies a point lying outside the center of rotation. The image is rotated on the display about the center of rotation according to the identified point. | 12-05-2013 |
20130240732 | PORTABLE RADIOGRAPHIC DETECTOR EXTERIOR BATTERY LATCH AND METHODS FOR USING THE SAME - A radiographic imaging detector can include a housing, a radiographic imaging array enclosed by the housing, and a recess to releasably contain a battery in an outer surface of the housing. Certain exemplary embodiments of securing methods and/or battery latch apparatus for the closable recess of the DR detector can include a first catch mechanism configured to be released by force applied in a first direction, a second catch mechanism released by force applied in a second direction different from the first direction, where movement in the first direction can operate to disengage the first catch mechanism from the second catch mechanism, where movement in the second direction can operate to disengage the second catch mechanism for access to the recess, where the second catch mechanism is nearby the first catch mechanism, and where the first and second catch mechanism are actuated using one hand of an operator. | 09-19-2013 |
20130182934 | SELF CORRECTING PORTABLE DIGITAL RADIOGRAPHY DETECTOR, METHODS AND SYSTEMS FOR SAME - Embodiments of radiographic imaging systems and/or methods can monitor the state of calibration of a digital x-ray detector, the detector including a solid state sensor with a plurality of pixels, an optional scintillating screen and at least one embedded microprocessor. In one embodiment, a method can use a computer or the embedded microprocessor or both, for setting a calibration operating mode of the portable detector; taking a plurality of dark images in the calibration mode; determining a dark difference image between pixel readings between two of the plurality of dark images; identifying pixels in the dark difference image that differ by over a threshold amount from at least some surrounding pixels in the dark difference image as defective pixels. | 07-18-2013 |
20130120533 | 3D INTRAORAL MEASUREMENTS USING OPTICAL MULTILINE METHOD - A method for mapping a sensor pixel array to an illumination pixel array according to a surface forms a group mapping by assigning each pixel to a corresponding group, each group with p adjacent pixels on the illumination array and each ordered set having k groups, by projecting and recording a sequence of group index images. Each group index image has, in at least two of the groups, no illuminated pixels and in fewer than (k−1) groups, from 2 to (p−1) adjacent illuminated pixels. The sequence of group index images uses pixels from each of the k groups. At least p multiline images are projected and recorded, wherein each multiline image projects a line within each group. Lines in the multiline images are correlated according to the group mapping and the correlation stored in memory. Integers k and p are greater than or equal to 3. | 05-16-2013 |
20130094628 | PORTABLE DIGITAL RADIOGRAPHY DETECTOR LOSS PREVENTION - A method for managing a portable x-ray detector for an x-ray imaging apparatus registers at least one portable detector with a processor that is associated with the x-ray imaging apparatus. A generated signal is indicative of the location of the registered portable x-ray detector relative to the x-ray imaging apparatus. An alert indication is provided when the generated signal indicates separation of the registered portable x-ray detector from the x-ray imaging apparatus beyond a predetermined distance. | 04-18-2013 |
20130070991 | METAL ARTIFACTS REDUCTION FOR CONE BEAM CT - A method for suppressing metal artifacts in a radiographic image, the method executed at least in part on a computer, obtains at least one two-dimensional radiographic image of a subject, wherein the subject has one or more metal objects and identifies a material that forms the one or more metal objects and a radiation energy level used to generate the obtained image. The obtained radiographic image is segmented to identify boundaries of the metal object. A conditioned radiographic image is formed by replacing pixel values in the radiographic image that correspond to the one or more metal objects with compensating pixel values according to the identified material and the identified radiation energy level. The conditioned radiographic image is then displayed. | 03-21-2013 |
20130064351 | CHARGER FOR ELECTRONIC GRID HOLDERS AND DETECTORS STORED AT MOBILE RADIOGRAPHIC IMAGING APPARATUS AND METHODS FOR USING THE SAME - A mobile radiography apparatus has a moveable (e.g., wheeled) transport frame and an adjustable support mounted at the frame that can include an x-ray source. Embodiments of methods and/or apparatus by which mobile radiography carts can provide a charging capability for at least one radiographic detector (e.g., removed power source, detector either separately mounted at the mobile radiography apparatus or in a detector carrier (e.g., grid holder)) mounted at the mobile radiography apparatus. | 03-14-2013 |
20130051516 | NOISE SUPPRESSION FOR LOW X-RAY DOSE CONE-BEAM IMAGE RECONSTRUCTION - Embodiments of methods and/or apparatus for 3-D volume image reconstruction of a subject, executed at least in part on a computer for use with a digital radiographic apparatus can obtain image data for 2-D projection images over a range of scan angles. For each of the plurality of projection images, an enhanced projection image can be generated. In embodiments of imaging apparatus, CBCT systems, and methods for operating the same can, through a de-noising application based on a different corresponding object, maintain image reconstruction characteristics (e.g., for a prescribed CBCT examination) while reducing exposure dose, reducing noise or increase a SNR while an exposure setting is unchanged. | 02-28-2013 |
20130028383 | DENTAL RADIOLOGY APPARATUS AND SIGNAL PROCESSING METHOD USED THEREWITH - A dental radiology apparatus having: an intraoral sensor comprising a detector including an active pixel array produced using biCMOS technology and converting a received x-ray into at least one analog electrical output signal; an electronic module encapsulated in a case and which has at least one detector activation device, the module linked to the sensor for the transmission to the sensor of a detector activation signal generated in the module and for the transmission to the module of the at least one analog electrical output signal, the module having analog-digital means for converting the at least one analog electrical output signal into at least one digital output signal. A remote processing and display unit of the at least one digital output signal is linked to the electronic module to ensure the transmission to the unit of the at least one digital output signal. | 01-31-2013 |
20130022255 | METHOD AND SYSTEM FOR TOOTH SEGMENTATION IN DENTAL IMAGES - A method for segmenting a feature of interest from a volume image acquires image data elements from the image of a subject. One or more boundary points along a boundary of the feature of interest are identified according to one or more geometric primitives with reference to the displayed view. A foreground seed curve is defined according to the one or more identified boundary points. A background field array that lies outside of, and is spaced from, the foreground seed curve by a predetermined distance, is defined. Segmentation is applied to the volume image according to foreground values obtained according to image data elements that are spatially bounded on or within the foreground seed curve and according to background field array values to create a segmented feature of interest. | 01-24-2013 |
20130022254 | METHOD FOR TOOTH DISSECTION IN CBCT VOLUME - A method of generating a dissection curve between a first and a second object in a volume image. The method accesses volume image data of a subject as a set of image slices and identifies a region of the volume image data that includes at least the first and second objects. At least one starting point in the volume image data is defined for the dissection curve according to a geometric primitive entered by an operator. Successive dissection curve points are identified according to points of minimum intensity in successive image slices. The dissection curve that connects the identified plurality of successive dissection curve points is displayed. | 01-24-2013 |
20130004041 | METHODS AND APPARATUS FOR TEXTURE BASED FILTER FUSION FOR CBCT SYSTEM AND CONE-BEAM IMAGE RECONSTRUCTION - Embodiments of methods and/or apparatus for 3-D volume image reconstruction of a subject, executed at least in part on a computer for use with a digital radiographic apparatus can obtain a 3D volume reconstruction or projection image by generating a first-filtered set of projection images from a plurality of 2-D projection images taken over a range of scan angles and a different second-filtered set of projection images from the plurality of 2-D projection images. Then, for example, a first 3-D volume image of the subject from the first-filtered set of projection images and a second 3-D volume image of the subject from the second-filtered set of projection images can be combined using different weighting combinations in at least two corresponding portions to generate the 3-D volume image of the subject. | 01-03-2013 |
20130001426 | RADIOGRAPHIC DETECTOR INCLUDING TRAP OCCUPANCY CHANGE MONITOR AND FEEDBACK, IMAGING APPARATUS AND METHODS USING THE SAME - Embodiments of radiographic imaging systems; digital radiography detectors and methods for using the same can monitor and/or control trap occupancy levels in photosensors of radiographic sensors (e.g., DR FPDs). In exemplary radiographic imaging apparatus embodiments, monitoring of trap occupancy or change in trap occupancy of the photosensor can determine whether an imaging array or detector panel has reached a stable operating point. In another embodiment, trap occupancy information can be used (a) to enable a generator (e.g., x-ray source) for a radiographic exposure and/or (b) to adjust to or to maintain a change in trap occupancy level at pre-determined set-point or to adjust to or maintain a change in trap occupancy level within a prescribed range (e.g., using clock signals and bias voltages applied to the photosensor). | 01-03-2013 |
20120328469 | NANOWIRE PREPARATION METHODS, COMPOSITIONS, AND ARTICLES - Methods of preparing nanowires, compositions, and articles are disclosed. Such methods can provide thin nanowires with reduced nanoparticle contamination. Compositions and articles comprising such nanowires are useful in electronics applications. | 12-27-2012 |
20120313942 | SYSTEM AND METHOD FOR DIGITAL VOLUME PROCESSING WITH GPU ACCELERATIONS - A method for processing digital volume image data, executed at least in part on a computer that has an associated graphics processing unit, orders the digital volume image data as a stack of two-dimensional image slices of voxels. A 1:1 mapping of each of the slices is formed, in sequential order, to a corresponding tile in a digital one-row flat volume in a global memory. For each voxel in the digital flat volume, a neighborhood is defined that has, relative to each voxel, four or more adjacent voxels that are within the corresponding tile of each voxel, and one or more adjacent voxels that are within the preceding tile, and one or more adjacent voxels that are within the next tile. Each voxel is updated according to information stored for the adjacent voxels in the defined neighborhood for said each voxel to form a rendered volume image, which is displayed. | 12-13-2012 |
20120301742 | ZERO-VALENT CATALYSIS OF METAL ION REDUCTION METHODS, COMPOSITIONS, AND ARTICLES - Nanowire preparation methods, compositions, and articles are disclosed. Such methods, which reduce metal ions to metal nanowires in the presence of zero-valent metal atoms, are capable of producing long, narrow, nanowires useful for electronics and optical applications. | 11-29-2012 |
20120301741 | NANOWIRE PREPARATION METHODS, COMPOSITIONS, AND ARTICLES - Methods of preparing nanowires having small diameters and large lengths are disclosed. Such nanowires are useful in electronics applications. | 11-29-2012 |
20120301737 | TRANSPARENT CONDUCTIVE FILMS, METHODS, AND ARTICLES - Disclosed are compositions and methods that provide flexible transparent conductive films that exhibit low levels of oligomer migration and haze development, without making use of costly substrates based on PEN film or PET films having low oligomer content. Such flexible transparent conductive films are useful in electronic and optical applications. | 11-29-2012 |
20120301733 | TRANSPARENT CONDUCTIVE FILM WITH HARDCOAT LAYER - Disclosed is a transparent conductive film that comprises at least one carrier layer disposed on the opposite side of a transparent support from at least one conductive layer, and at least one hardcoat layer disposed on the at least one carrier layer. Such films, which exhibit superior hardness, adhesion, and curl, are useful for electronics applications. | 11-29-2012 |
20120301352 | METAL ION CATALYSIS OF METAL ION REDUCTION, METHODS, COMPOSITIONS, AND ARTICLES - Methods for preparing metal nanowires in the presence of IUPAC Group 15 ions are disclosed. Such methods are capable of producing high aspect ratio nanowires that are suitable for electronics applications. | 11-29-2012 |
20120301350 | NANOWIRE PREPARATION METHODS, COMPOSITIONS, AND ARTICLES - Nanowire preparation methods, compositions, and articles are disclosed. Such methods which reduce metal ions to metal nanowires in the presence of aluminum or gallium ions, are capable of producing long, narrow, nanowires useful for electronics and optical applications. | 11-29-2012 |
20120301349 | NANOWIRE PREPARATION METHODS, COMPOSITIONS, AND ARTICLES - Methods of preparing metal nanowire are disclosed that employ quaternary phosphonium salts. Such processes can produce long and thin nanowires. Compositions and articles comprising such nanowires are useful in electronics applications. | 11-29-2012 |
20120301348 | NOVEL SOLVENTS FOR METAL ION REDUCTION METHODS, COMPOSITIONS, AND ARTICLES - Methods employing novel solvents are disclosed for making metal nanostructures including metal nanowires. Such methods can be carried out at lower temperatures and higher production rates than those employing ethylene glycol. The products of these methods are useful for electronics applications. | 11-29-2012 |
20120298931 | VISCOSITY MODIFIER COMPOSITIONS AND METHODS - Disclosed are conductive coatings that exhibit improved clarity, uniformity, and mechanical strength. Such coatings comprising volatile viscosity modifiers are useful for electronics applications. | 11-29-2012 |
20120297927 | BRANCHED NANOWIRE PREPARATION METHODS, COMPOSITIONS, AND ARTICLES - Branched nanowire preparation methods, compositions, and articles are disclosed. Such branched nanowires are useful for electronics and optical applications. | 11-29-2012 |
20100208348 | TUNABLE SPECTRAL FILTRATION DEVICE - A tunable spectral filtration device comprises at least one optical filter for intersecting a first path of converging or diverging light comprising an axis at a first angle of incidence and at least one device positioned to enable a second path of the converging or diverging light to pass through the at least one optical filter at a second angle of incidence. The optical filter comprises at least one coating and is tiltable over a plurality of angles with respect to the axis. The first angle of incidence is opposite in sign to the second angle of incidence, such that the positioning of the at least one optical filter and the at least one device substantially cancels angle-of-incidence dependent spectral broadening and/or polarization dependent spectral broadening of the converging or diverging light. | 08-19-2010 |