Patent application number | Description | Published |
20090066931 | Distance measurement method, medium, and apparatus for measuring distance between the distance measurement apparatus and target object - A distance measurement method, medium, and apparatus for measuring a distance between the distance measurement apparatus and a target object are provided. The distance measurement method comprises counting pulses of a clock pulse signal having a low frequency during a period from when an optical pulse signal is applied to a target object by a distance measurement apparatus to when the optical pulse signal reflected from the target object is received by the distance measurement apparatus, counting pulses of the clock pulse signal during a period from when the optical pulse signal is received by the distance measurement apparatus to when the received optical pulse signal and the clock pulse signal correspond to each other, and calculating a distance between the distance measurement apparatus and the target object using the counting results. Accordingly, the distance can be measured with high accuracy using the optical pulse signal and the clock pulse signal, thereby reducing costs and power consumption. | 03-12-2009 |
20090103782 | Method and apparatus for obtaining depth information - A method and apparatus for obtaining depth information are provided. The method includes calculating a relative depth value between a first color pixel and a second color pixel based on values of color pixels of a color image, and calculating a depth value of a second depth pixel that belongs to a depth image corresponding to the color image, matches the second color pixel, and does not have the depth value, based on the calculated relative depth value and a depth value of a first depth value that belongs to the depth image, matching the first color pixel, and has the depth value thereof. | 04-23-2009 |
20090114802 | Image generating method and apparatus - An image generating method and apparatus are provided. The image generating method irradiates a light with a predetermined wavelength to a target object at a predetermined interval, passes a light having a wavelength required to generate a color image from among lights reflected from the target object, detects color values according to the passed light, generates a depth image of the target object using color values detected during a period in which the light with the predetermined wavelength is irradiated, and generates the color image of the target object using color values detected during a period other than the period in which the light with the predetermined wavelength is irradiated. Accordingly, the image generating method can generate a depth image having high resolution while maintaining the resolution of the color image. | 05-07-2009 |
20090123061 | Depth image generating method and apparatus - A method of and apparatus for generating a depth image are provided. The method of generating a depth image includes: emitting light to an object for a first predetermined time period; detecting first light information of the object for the first predetermined time period from the time when the light is emitted; detecting second light information of the object for the first predetermined time period a second predetermined time period after the time when the light is emitted; and by using the detected first and second light information, generating a depth image of the object. In this way, the method can generate a depth image more quickly. | 05-14-2009 |
20090174710 | Modeling method and apparatus - A modeling method and apparatus are provided, in which a vertex for each pixel of a depth image representing an object, the vertex having a 3-D position corresponding to the depth value of each pixel, is generated, grouping is performed on pixels which belong to a non-boundary of the object, among the pixels of the depth image, so that each pixel in the non-boundary of the object and adjacent pixels of the pixel are grouped into one group, and a polygonal mesh that is a set of at least one polygon is generated by connecting the vertices in consideration of the results of grouping. | 07-09-2009 |
20090190852 | Image inpainting method and apparatus based on viewpoint change - Provided is a method and apparatus for inpainting a depth image and a color image seen from one viewpoint by using a depth image and a color image inpainted from another viewpoint. The method includes detecting an edge on the basis of a difference between depth values of pixels in a first image seen from a view viewpoint and inpainting depth values of pixels in an occlusion region that is shown in a second image seen from a second viewpoint but not shown in the first image, in a direction from pixels in a region having high depth values among regions forming the edge to pixels in a region having low depth values. | 07-30-2009 |
20090213240 | Method and apparatus for processing three-dimensional (3D) images - Provided is point-based efficient three-dimensional (3D) information representation from a color image that is obtained from a general Charge-Coupled Device (CCD)/Complementary Metal Oxide Semiconductor (CMOS) camera, and a depth image that is obtained from a depth camera. A 3D image processing method includes storing a depth image associated with an object as first data of a 3D data format, and storing a color image associated with the object as color image data of a 2D image format, independent of the first data. | 08-27-2009 |
20090257650 | Image processing method and medium to extract a building region from an image - Provided is a method of performing an image segmentation so as to extract a building region from an input color image. The method includes extracting a plurality of straight lines that pass through a vanishing point and determining the building region in the image based on color values around the plurality of straight lines. | 10-15-2009 |
20100014716 | Method for determining ground line - A method of determining a ground line from an input image. The method includes determining a plurality of ground line candidates from the image, determining a certain band a central-line of which is a boundary between a G region and other regions in a Ground Building Sky (GBS) map of the image, and determining the ground line of the image by selecting a ground line candidate, among the plurality of ground line candidates, having the greatest extent crossing the certain band. | 01-21-2010 |
20100097389 | Image processing method - An image processing method which determines and depth-unfolds a depth folding region in an input depth image. A depth folding region of an input depth image may be determined based on a variance of the input depth image, a gradient image, and the like. A predetermined first depth value may be added to a depth value of each pixel of the determined depth folding region and depth information of the input depth image may be updated. | 04-22-2010 |
20100111446 | Image processing apparatus and method - An image processing apparatus and method are provided. A control unit may divide input image array data into a plurality of sub-blocks, and a first arithmetic logic unit (ALU) may generate an integral image of at least one of the plurality of sub-blocks. The control unit may determine each of the plurality of sub-blocks to be included in any one of a first sub-block group and a second sub-block group, store the integral image of each sub-block included in the first sub-block group on the first memory, and store the integral image of each sub-block included in the second sub-block group on the second memory. | 05-06-2010 |
20100238168 | APPARATUS AND METHOD FOR GENERATING SKELETON MODEL USING MOTION DATA AND IMAGE DATA - An apparatus and method for generating a skeleton model using motion data and image data. The apparatus for generating the skeleton model may synchronize the image data and the motion data, and generate a three-dimensional (3D) skeleton model of an entire body of a user using a silhouette extracted from the image data and also using a position or orientation of a joint of the user extracted from the motion data. The skeleton model may be generated using the image data and the motion data, thereby improving accuracy of the skeleton model of the entire body of the user. | 09-23-2010 |
20110109726 | APPARATUS AND METHOD FOR GENERATING A THREE-DIMENSIONAL IMAGE USING A COLLABORATIVE PHOTOGRAPHY GROUP - A communication network comprising a collaborative photography group including a plurality of cameras having synchronized photographing times, is provided. The plurality of cameras may share location information, direction angle information, and image information generated by photographing an object, and generate a three-dimensional (3D) image of the object. | 05-12-2011 |
20110254841 | Mesh generating apparatus, method and computer-readable medium, and image processing apparatus, method and computer-readable medium - Disclosed is a mesh generating apparatus, method and computer-readable medium, and an image processing apparatus, method and computer-readable medium. A single 3D mesh and a single 3D object model may be generated using a single color image and a single depth image. A plurality of viewpoint images seen from a plurality of viewpoints may be generated from a single 3D object model. | 10-20-2011 |
20110254923 | Image processing apparatus, method and computer-readable medium - Provided is an image processing apparatus, method and computer-readable medium. The image processing apparatus may perform modeling of a function that enables correction of a systematic error of a depth camera, using a single depth camera and a single calibration reference image. Additionally, the image processing apparatus may calculate a depth error or a distance error of an input image, and may correct a measured depth of the input image using a modeled function. | 10-20-2011 |
20110305370 | Apparatus and method for depth unfolding based on multiple depth images - Provided is a depth image unfolding apparatus and method that may remove a depth fold from a depth image to restore a three-dimensional (3D) image. The depth image unfolding apparatus may include an input unit to receive inputted multiple depth images with respect to the same scene, the multiple depth images being photographed based on different modulation frequencies of a fixed photographing device, a depth fold estimator to estimate a number of depth folds based on a distance between multiple three-dimensional (3D) points of multiple pixels indicating the same location of the scene in the multiple depth images, and an output unit to output the multiple depth images from which depth folds are removed based on the estimated number of depth folds. | 12-15-2011 |
20110317878 | Apparatus and method for generating depth image - Provided is a depth image generating apparatus and method. The light-receiving unit may include a first gate and a second gate and a depth calculator to calculate a depth based on first light information through fourth light information. The first gate may obtain the first light information from a reflected light of a light emitted based on a first pulse and the second gate may obtain the second light information from a reflected light of a light emitted based on a second pulse, and then the first gate may obtain the third light information from a reflected light of a light emitted based on a third pulse and the second gate may obtain the fourth light information from a reflected light of a light emitted based on a fourth pulse. | 12-29-2011 |
20120001902 | Apparatus and method for bidirectionally inpainting occlusion area based on predicted volume - An apparatus and method for bidirectionally inpainting an occlusion area appearing during generation of a virtual viewpoint image, using a foreground area and a background area based on a predicted volume are provided. The method includes receiving an input of a depth image and a color image, the depth image having depth information for a first viewpoint, and the color image having color information for the first viewpoint, generating a virtual viewpoint image at a second viewpoint based on the depth image and the color image, separating the virtual viewpoint image into a foreground area and a background area, based on the depth information and direction information regarding a direction from the first viewpoint to the second viewpoint, predicting a three-dimensional (3D) volume of the foreground area, and inpainting an occlusion area bidirectionally using the foreground area and the background area, based on the predicted 3D volume, the occlusion area being included in the virtual viewpoint image. | 01-05-2012 |
20120026296 | IMAGE PROCESSING APPARATUS AND METHOD - A first calculator of an image processing apparatus may trace a view transform vector between color images of different frames. A second calculator may trace a view transform vector between depth images of different frames. In this example, a third calculator may calculate a view transform vector between the color camera and the depth camera using the view transform vector between the color images and the view transform vector between the depth images. | 02-02-2012 |
20120045143 | Apparatus and method for high speed filtering of image for high precision - Provided are an apparatus and a method for high speed filtering of an image for high precision that may include a coordinate determining unit to determine coordinates (P, Q) on a screen with respect to a first pixel to be filtered, a pixel determining unit to determine a second pixel with coordinates including either P or Q, a block setting unit to set a first block comprising the first pixel, and a second block comprising the second pixel, and a processing unit to filter the first pixel by comparing the first block and the second block. | 02-23-2012 |
20120106803 | Apparatus and method for dynamically controlling integration time of depth camera for accuracy improvement - An integration time dynamic control apparatus and method for dynamically controlling an integration time of a depth camera based on a motion of a depth image, are provided to improve an accuracy of the depth image. The integration time dynamic control apparatus may measure a motion of a depth image acquired from the depth camera, may determine whether the measured motion is greater than or equal to a reference value set in advance, and may control the integration time of the depth camera based on a result of the determination, thereby improving the accuracy of the depth image. | 05-03-2012 |
20120121162 | Filtering apparatus and method for high precision restoration of depth image - A high speed filtering apparatus and a method for high precision restoration of a depth image are provided. The high speed filtering apparatus for high precision restoration of the depth image may include a block setting unit to set a first block including a target pixel, and to set a second block with respect to a central pixel distributed around the target pixel based on a size of the first block, a weight determining unit to determine a pixel weight with respect to each pixel in the second block, and to determine a block weight with respect to the second block by applying the pixel weight, and a processor to filter the target pixel based on the block weight, thereby accurately filtering the target pixel. | 05-17-2012 |
20130002823 | IMAGE GENERATING APPARATUS AND METHOD - An image generating apparatus may include a first reflector and a second reflector. When a light emitter emits an infrared light, the infrared light may be reflected from a first reflector and be omni-directionally reflected. The reflected infrared light that is the infrared light reflected from the object may be reflected from a second reflector and be transferred to a sensor. The sensor may receive the reflected infrared light and generate a depth image of the object. | 01-03-2013 |
20130011046 | DEPTH IMAGE CONVERSION APPARATUS AND METHOD - Provided are an apparatus and method for converting a low-resolution depth image to a depth image having a resolution identical to a resolution of a high-resolution color image. The depth image conversion apparatus may generate a discrete depth image by quantizing a depth value of an up-sampled depth image, estimate a high-resolution discrete depth image by optimizing an objective functions of the discrete depth image based on the high-resolution color image and an up-sampled depth border, and convert the up-sampled depth image to a high-resolution depth image by filtering the up-sampled depth image when a difference between discrete depth values of neighboring pixels in the high-resolution discrete depth image is less than a predetermined threshold value. | 01-10-2013 |
20130016900 | IMAGE FILTERING APPARATUS AND METHOD BASED ON NOISE PREDICTION USING INFRARED RAY (IR) INTENSITY - Provided is an image filtering apparatus and method that may generate a noise prediction model associated with a depth image, based on an infrared ray (IR) intensity, and thereby predict noise included in a depth image using the generated noise prediction model. | 01-17-2013 |
20130107005 | IMAGE PROCESSING APPARATUS AND METHOD | 05-02-2013 |
20130176391 | METHOD AND APPARATUS FOR RECOVERING DEPTH VALUE OF DEPTH IMAGE - A method and apparatus for processing a depth image determines a number of mods (NoM) for corresponding pixels in a plurality of depth images. The corresponding pixels may represent a same three-dimensional (3D) point. The NoM may be determined to be a value for minimizing a Markov random field (MRF) energy. A depth value for one depth image may be recovered, and a depth value for another depth image may be updated using the recovered depth value. | 07-11-2013 |
20130229410 | RENDERING APPARATUS AND METHOD - A rendering apparatus and method are provided. A plurality of nodes of interface data are described using the plurality of nodes connected hierarchically and indicate a plurality of selectable items that are analyzed, and the interface data is rendered based on a result of the analysis. Consequently, a creator of interface data to be rendered can expect a time-to-market reduction when creating interface data described in a standardized format. | 09-05-2013 |
20130266208 | IMAGE PROCESSING APPARATUS AND METHOD - Provided is an image processing apparatus. A boundary detector of the image processing apparatus may detect a boundary of an occlusion region of a color image warped in correspondence to a first view. A boundary labeling unit of the image processing apparatus may label the detected boundary with one of a foreground region boundary and a background region boundary. | 10-10-2013 |
20130322720 | APPARATUS AND METHOD FOR PARSING HUMAN BODY IMAGE - An apparatus and method for parsing a human body image may be implemented by acquiring a depth image including a human body, and detecting a plurality of points in the acquired depth image by conducting a minimum energy skeleton scan on the depth image. | 12-05-2013 |
20130329016 | APPARATUS AND METHOD FOR GENERATING A THREE-DIMENSIONAL IMAGE USING A COLLABORATIVE PHOTOGRAPHY GROUP - A communication network comprising a collaborative photography group including a plurality of cameras having synchronized photographing times, is provided. The plurality of cameras may share location information, direction angle information, and image information generated by photographing an object, and generate a three-dimensional (3D) image of the object. | 12-12-2013 |
20140002609 | APPARATUS AND METHOD FOR GENERATING DEPTH IMAGE USING TRANSITION OF LIGHT SOURCE | 01-02-2014 |
20140078459 | FILTER FOR SELECTIVE TRANSMISSION OF VISIBLE RAYS AND INFRARED RAYS USING AN ELECTRICAL SIGNAL - Disclosed is a filter for selective transmission of visible rays and infrared rays using an electrical signal. The filter comprises: a first filter for controlling the degree of absorption of visible rays by changing the molecular arrangement in accordance with the control of the electrical signal; and a second filter for controlling the degree of reflection of infrared rays by changing reflectivity in accordance with the control of the electrical signal. | 03-20-2014 |
20140140608 | IMAGE PROCESSING APPARATUS AND METHOD FOR COLOR-DEPTH DEMOSAICING - An image processing apparatus and method, which add depth information to a color pixel and add color information to a depth pixel in an image including the color pixel and the depth pixel includes a depth information determination unit to determine depth information of a current color pixel using peripheral color pixels of the current color pixel and peripheral depth pixels of the current color pixel. | 05-22-2014 |
20140184746 | IMAGE PROCESSING METHOD AND APPARAUTS - An image processing apparatus is provided. The image processing apparatus determines whether a first charge quantity of charges stored in a first charge storage is greater than or equal to a predetermined saturation level, the first charge storage among a plurality of charge storages configured to store charges generated by a sensor of a depth camera. According to the determination result, when the first charge quantity is greater than or equal to the saturation level, the image processing apparatus may calculate the first charge quantity from at least one second charge quantity of charges stored in at least one second charge storage which is different from the first charge storage among the plurality of charge storages. | 07-03-2014 |
20140185921 | APPARATUS AND METHOD FOR PROCESSING DEPTH IMAGE - A method and apparatus for processing a depth image that removes noise of a depth image may include a noise estimating unit to estimate noise of a depth image using an amplitude image, a super-pixel generating unit to generate a planar super-pixel based on depth information of the depth image and the noise estimated, and a noise removing unit to remove noise of the depth image using depth information of the depth image and depth information of the super-pixel. | 07-03-2014 |
20140187861 | ENDOSCOPE USING DEPTH INFORMATION AND METHOD FOR DETECTING POLYP BASED ON ENDOSCOPE USING DEPTH INFORMATION - An endoscope using depth information and a method for detecting a polyp based on the endoscope using the depth information are provided. The endoscope using the depth information may generate an irradiated light signal including a visible light, obtain depth information based on the irradiated light signal and a reflected light signal obtained through the irradiated light signal being reflected off of an intestine wall, generate a depth image inside the intestine wall based on the depth information, and detect a polyp located on the intestine wall based on the depth image. | 07-03-2014 |
20140294299 | IMAGE PROCESSING APPARATUS AND METHOD - An apparatus and method for out-focusing a color image based on a depth image, the method including receiving an input of a depth region of interest (ROI) desired to be in focus for performing out-focusing in the depth image, and applying different blur models to pixels corresponding to the depth ROI, and pixels corresponding to a region, other than the depth ROI, in the color image, thereby performing out-focusing on the depth ROI. | 10-02-2014 |
20150015569 | METHOD AND APPARATUS FOR PROCESSING DEPTH IMAGE - A method of processing a depth image includes receiving a high-resolution color image and a low-resolution depth image corresponding to the high-resolution color image, generating a feature vector based on a depth distribution of the low-resolution depth image, selecting a filter to upsample the low-resolution depth image by classifying a generated feature vector according to a previously learnt classifier, upsampling the low-resolution depth image by using a selected filter, and outputting an upsampled high-resolution depth image. | 01-15-2015 |
20150015818 | METHOD OF SWITCHING GUEST-HOST DUAL FREQUENCY LIQUID CRYSTAL BY USING BACK FLOW - Provided are methods of switching guest-host dual frequency liquid crystals by using a back flow. In the case of a shutter having a dual frequency liquid crystal layer between two transparent substrates, such a method includes: applying a first voltage having a first frequency to the dual frequency liquid crystal layer; and applying a second voltage having a second frequency to the dual frequency liquid crystal, the second frequency being higher than the first frequency, wherein the second voltage is higher than a threshold voltage that generates a back flow around liquid crystals of the dual frequency liquid crystal layer, and the first voltage is lower than the threshold voltage. | 01-15-2015 |
20150049937 | METHOD AND APPARATUS FOR PROCESSING IMAGES - Provided is an image processing method including: receiving a depth map and a color image with respect to a predetermined scene; projecting a plurality of points included in the depth map, onto the color image; segmenting the color image, onto which the depth map is projected, by using at least two image segmentation methods to generate respective segmentation results, and classifying the plurality of points included in the color image into at least one set according to the respective segmentation results; assigning a depth value to each of the plurality of points of the color image included in the set; and outputting the color image, to which the depth values are assigned. | 02-19-2015 |