Color Processing In Perceptual Color Space Patents (Class 345/591)
  • Patent number: 9794450
    Abstract: According to one embodiment, an image processor includes a processor. The processor implements acquiring a first image and first information. The first information indicates a condition of a first projection surface. The first information includes a first color gamut of the first projection surface. The processor implements deriving a second color gamut according to the first color gamut derived by using the first information. The processor implements converting a chromaticity of the first image to obtain a second image. Each pixel of the second image has a color included in the second color gamut. The processor implements generating a first converted image by correcting the second image based on the first color gamut.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: October 17, 2017
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hisashi Kobiki, Mikiko Karasawa, Yasutoyo Takeyama, Masahiro Baba, Nao Mishima
  • Patent number: 9779464
    Abstract: A camera image display system of audio video navigation (AVN) includes a central processing unit (CPU) configured to control an AVN system. A camera only graphical driver is configured at a kernel stage for an initial booting of the CPU to process a camera image. A display is configured to display the camera image output from the CPU. When the central processing unit is booted, the camera only graphical driver is simultaneously booted with a kernel.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: October 3, 2017
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Yang Ho Ryu, Byeong Yeol Ryu
  • Patent number: 9779305
    Abstract: A video analyzing device according to the present invention specifies an object-related section from video. The object-related section being related to a specific object appearing in the video. The video analyzing device includes an object-related section specifier that specifies a non-detected section as the object-related section when a predetermined condition is satisfied and does not specify the non-detected section as the object-related section when the predetermined condition is not satisfied. The object-detected section is a section in which the specific object is detected. The non-detected section is a section in which the specific object is not detected and which is in a consecutive relation with the object-detected section.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: October 3, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Kazuhiko Maeda, Tomohiro Konuma
  • Patent number: 9773445
    Abstract: The present invention provides a pixel array comprising a plurality of pixel units, each of which comprises three sub-pixels in different colors, wherein, in each pixel unit, any two adjacent sub-pixels are combined into a pixel block. Compared to the prior art, the width of the sub-pixel in the present invention increases, which reduces the difficulty of the manufacturing process of the pixel array and improves product yield. The present invention further provides a driving method of the pixel array, a display panel including the pixel array, and a display device including the display panel. When driving the above pixel array with the driving method, granular sensation of the display panel including the pixel array can be reduced, and a display effect of a display panel with higher resolution in the same size can be achieved.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: September 26, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Renwei Guo, Xue Dong
  • Patent number: 9734867
    Abstract: In accordance with an embodiment of the present invention, a method for inserting secondary content into a media stream includes dividing the media stream having a plurality of frames into a plurality of shots at a processor. The method further includes grouping consecutive shots from the plurality of shots into a plurality of scenes. A first list of insertion points is generated for introducing the secondary content. The insertion points of the first list are boundaries between consecutive scenes in the plurality of scenes. An average insertion point saliency of the media stream is generated at the insertion points in the first list. A second list of insertion points is then generated. The insertion points in the second list are arranged to maximize a function of the average insertion point saliency and a distance between each insertion point in the second list with other insertion points in the second list.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: August 15, 2017
    Assignee: Futurewei Technologies, Inc.
    Inventors: Yu Huang, Chao Zhang, Hong Heather Yu, Dongjing Shan
  • Patent number: 9699468
    Abstract: An adaptive screen and video coding system adaptively selects different coding schemes for coding an image block of a screen or video image based on a type of content included in the image block. The adaptive screen and video coding system further includes a screen coding scheme that classifies pixels of the image block into major colors and escape pixels and convert values of the pixels into index values assigned to the major colors and the escape pixels. Since the number of index values is usually less than a normal range of pixel values, using the index values instead of actual pixel values further facilitate compression and coding of the image block, thus improving coding accuracy and efficiency of the screen or video image. In one embodiment, the adaptive screen and video coding system may be used for screen sharing application.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: July 4, 2017
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Xun Guo, Shipeng Li, Yan Lu
  • Patent number: 9661289
    Abstract: An RGB video signal is generated by illuminating an object with light from a first monitor and capturing an image of the object with a camera. The second monitor holds a profile representing the correspondence relationship between R, G, and B values generated by displaying an image including values of R, G, and B on a reference monitor and capturing an image of the displayed image with the camera and X, Y, and Z values which are measurements of tristimulus values of the displayed image in the XYZ color space. The second monitor converts the first R, G, and B values of the video signal to first X, Y, and Z values based on the profile, and converts the first X, Y, and Z values to second R, G, and B values appropriate for the second monitor to display an image of the object on a display unit.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: May 23, 2017
    Assignee: JVC KENWOOD CORPORATION
    Inventor: Tsutomu Koike
  • Patent number: 9659354
    Abstract: Techniques related to color matching and color conversion are discussed. Such techniques may include determining operators for converting input pixel values to output pixel values in a color space such that the operators may include a set of color conversion matrix operators, a chroma adaptation operator, and/or a luma adaptation operators determined based on one or more perceptual color space values associated with the input pixel values.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: May 23, 2017
    Assignee: Intel Corporation
    Inventors: Moran Klein, Dmitry Paus
  • Patent number: 9659513
    Abstract: A method for use with an electronic signboard (e.g., an LED signboard) compensates psychovisual chromaticity shift due to ambient light. The method first measures a color of light reflected from the signboard. Based on the measurement a set of calorimetric equations defining the desired light to be perceived as being displayed by each pixel of the signboard are solved. The calorimetric equations are the additive color mixture of the ambient light and the light to be actually displayed by the pixel in the absence of ambient light. The calorimetric equations may be expressed in units of uniform color space. The solutions of the colorimetric equations are then used to control the light actually displayed by the pixel.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: May 23, 2017
    Assignee: LANDMARK SCREENS, LLC
    Inventor: Paul O. Scheibe
  • Patent number: 9641820
    Abstract: Techniques for de-noising a digital image using a multi-band noise filter and a unique combination of texture and chroma metrics are described. A novel texture metric may be used during multi-band filter operations on an image's luma channel to determine if a given pixel is associated with a textured/smooth region of the image. A novel chroma metric may be used during the same multi-band filter operation to determine if the same pixel is associated with a blue/not-blue region of the image. Pixels identified as being associated with a smooth blue region may be aggressively de-noised and conservatively sharpened. Pixels identified as being associated with a textured blue region may be conservatively de-noised and aggressively sharpened. By coupling texture and chroma constraints it has been shown possible to mitigate noise in an image's smooth blue regions without affecting the edges/texture in other blue objects.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: May 2, 2017
    Assignee: Apple Inc.
    Inventors: Farhan A. Baqai, Fabio Riccardi, Russell A. Pflughaupt, Claus Molgaard, Gijesh Varghese
  • Patent number: 9514519
    Abstract: An image filter (100) for calculating a pixel value of target pixel in an output image from a pixel value of each of a pixel or pixels belonging to a filter area in an input image by using a filter coefficient vector V, is configured to include a filter coefficient vector changing section (120) for changing the filter coefficient vector V according to at least either where the target area is in the input image, or where the target pixel is in the output image.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: December 6, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tomohiro Ikai, Yukinobu Yasugi, Tomoko Aono
  • Patent number: 9497448
    Abstract: There are provided an image processing method. Perspective is calculated from an image, the image is divided into a plurality of objects in consideration of the perspective, and processing levels of the plurality of objects are assigned. A light shielding rate of a transparent display apparatus is calculated based on the processing levels. Further, image processing is performed on the objects on the basis of the processing levels, so that it is possible to improve a stereoscopic effect being felt while using the transparent display apparatus. Furthermore, a shielding rate of light entering from the rear side of the transparent display apparatus is effectively adjusted, and the image is processed to improve the visibility of the image.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: November 15, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: SangLyn Lee, JungHoon Seo, JooYoung An, Jung-Gyum Kim
  • Patent number: 9449578
    Abstract: A method of increasing the color saturation of the RGB values of at least one pixel of an image, the method involving: calculating a luminance value based on RGB values of a first pixel; calculating a first maximum increase of said color saturation based on the highest of said RGB values and on said luminance value; calculating a second maximum increase of said color saturation based on the lowest of said RGB values and on said luminance value; and increasing the color saturation of said first pixel based on said first and second maximum increases.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: September 20, 2016
    Assignee: STMicroelectronics (Grenoble 2) SAS
    Inventor: Nicolas Roux
  • Patent number: 9437161
    Abstract: In an image processing device which processes a video signal displayed on a display having sub-pixels arranged in a shape of stripes, a pixel scan section scans the video signal by two pixels adjacent in a direction orthogonal to the stripes and detects, in the two pixels, dark sub-pixels continuing by a number equivalent to one pixel or more between two bright sub-pixels each of which has a largest value in each of the two pixels, a correction target determination section determines at least one sub-pixel in the dark sub-pixels to be a correction target, a correction value computation section computes a correction value of the correction-target sub-pixel based on the values of the sub-pixels included in the two pixels, and a sub-pixel correction section increases the value of the correction-target sub-pixel by the correction value.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: September 6, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Seiji Saito
  • Patent number: 9393772
    Abstract: A system for registering printing presses includes printing stations for printing color images on a web includes an imager acquiring images of a web common area. The acquired image includes a portion of a color image associated with a printing station and a portion of one other color image associated with an un-registered printing station and a processor, coupled with the imager. A portion of the color image is registered with a portion of the other color image according to two monochrome images, each corresponding to a color image printed on the common area and determined according to the location of each pixel of the acquired image in a color separation space, the location is determined according to the projected location on a color projection plane. The portion of the one color image is registered with the portion of the one other color image with a reference image.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: July 19, 2016
    Assignee: Advanced Vision Technology (AVT) Ltd.
    Inventors: Ohad Menashe, Dan Zamir, Shahar Golan, Haim Kreitman
  • Patent number: 9390481
    Abstract: Implementations generally relate to enhancing content appearance. In some implementations, a method includes receiving an image, selecting a reference object in the image. The method also includes determining one or more image parameter adjustments based on the selected reference object, and applying the one or more image parameter adjustments to the entire image.
    Type: Grant
    Filed: June 1, 2013
    Date of Patent: July 12, 2016
    Assignee: Google Inc.
    Inventors: Thor Carpenter, Anil Kokaram
  • Patent number: 9355587
    Abstract: A driving method for rendering subpixels of each pixel of a display is provided. The display has a plurality of first pixels and a plurality of second pixels. Each second pixel has a first color subpixel and a second color subpixel, but lacks a third color subpixel. Each first pixel has a second color subpixel and a third color subpixel, but lacks a first color subpixel. The first color subpixel, second color subpixel and third color subpixel are used to represent gray levels of a first color, a second color and a third color respectively. Processes of rendering the subpixels of each pixel are performed based on positions, saturations and brightness of neighboring pixels, such that quality of image displayed on the display could be ensured even though each first pixel lacks the first color subpixel and each second pixel lacks the third color subpixel.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: May 31, 2016
    Assignee: AU Optronics Corp.
    Inventors: Shang-Yu Su, Sheng-Wen Cheng
  • Patent number: 9344605
    Abstract: The present invention relates to a method and system for closed-loop color correction based on a multidimensional table, and belongs to printing device correction methods in the field of image hardcopy. The method comprises a step of performing loop color correction for color conversion based on a multidimensional look-up table, wherein a mapping relationship is established between a set of input dots and a set of output dots using a multidimensional look-up table in the color conversion. With the method and system of this invention, for different combinations of papers, printing inks and devices, a color conversion may be corrected to a more accurate extent, getting a chromatic aberration and a visual appearance closer to that of a target color, so as to achieve the purpose of color consistency management.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: May 17, 2016
    Assignees: PEKING UNIVERSITY FOUNDER GROUP CO., LTD., BEIJING FOUNDER ELECTRONICS CO., LTD.
    Inventors: Haifeng Li, Yanman Ma
  • Patent number: 9336571
    Abstract: In a method of skin tone optimization in a color gamut mapping system, an image signal is first transformed from a predetermined color domain to an HSV color domain for generating an HSV image signal. Next, a skin tone optimization is performed on the HSV image signal for generating an adjusted saturation gain. Then, a color enhancement is performed on the HSV image signal according to the adjusted saturation gain and a color shift signal so as to generate a color enhancement signal. Finally, the color enhancement signal is transformed from the HSV color domain to the predetermined color domain.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: May 10, 2016
    Assignee: FOCALTECH SYSTEMS CO., LTD.
    Inventors: Hung-Chu Wu, Edward Jan-Ruei Lin
  • Patent number: 9330621
    Abstract: A display device is provided. The display device includes a display unit having pixels arranged in a two-dimensional matrix, each pixel including additive mixture subpixels and a luminance adjustment subpixel, and a signal control unit controlling a luminance at a maximum gray scale in the luminance adjustment subpixel depending on an external light illuminance.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: May 3, 2016
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Yoshihiro Watanabe
  • Patent number: 9305225
    Abstract: A method determining user liveness is provided that includes calculating, by a device, eye openness measures for a frame included in captured authentication data, and storing the eye openness measures in a buffer of the device. Moreover the method includes calculating confidence scores from the eye openness measures stored in the buffer, and detecting an eye blink when a maximum confidence score is greater than a threshold score.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: April 5, 2016
    Assignee: DAON HOLDINGS LIMITED
    Inventor: Mircea Ionita
  • Patent number: 9219087
    Abstract: A display unit includes a plurality of display function layers provided in a stacking direction, and each including a plurality of pixel circuits. A pixel circuit group configured by predetermined number of the pixel circuits configures a single display pixel, and the predetermined number of the pixel circuits spans the plurality of display function layers.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: December 22, 2015
    Assignee: Joled Inc.
    Inventors: Seiichiro Jinta, Tadahiko Yoshinaga
  • Patent number: 9134179
    Abstract: Color selection and display methods and devices in which colors can be displayed according to color harmony and color emotion and feedback obtained on color emotion and color harmony evoked by selected color and/or color combinations.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: September 15, 2015
    Assignee: Benjamin Moore & Co.
    Inventors: Patrick Tak-Fu Chong, Carl Minchew, Kathleen Ewing
  • Patent number: 9111387
    Abstract: A color database, in which a mutual correlation is established among an L*a*b*-color-system L*a*b* value as an attribute with respect to a color stimulus, an RGB value, and a sphere radius which is proportional to a color difference and is set in advance as a value indicating a level at that a person can sensuously distinguish between colors, the sphere radius being a radius of a color sphere having the L*a*b* value as a center point in an L*a*b*-color-system color solid, is included, and when the L*a*b* value or RGB value is input to an input unit, display data generation unit refers to the color database to generate display data in which the color sphere having a center point of the L*a*b* value or the L*a*b* value correlated with RGB value is disposed in the L*a*b*-color-system color solid of a line drawing, the color sphere having the correlated sphere radius.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: August 18, 2015
    Assignee: VIVA COMPUTER CORPORATION
    Inventors: Manabu Miki, Junichiro Nishi
  • Patent number: 9106878
    Abstract: A method for adjusting the color point of a lighting unit including semiconductor-based lasers for generating an RGB signal. The method may include supplying at least one component of the RGB signal to a sensor via a filter; and actuating at least one of the semiconductor-based lasers by means of a signal detected by the sensor.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: August 11, 2015
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Jan Oliver Drumm, Jens Richter, Claus Seibert
  • Patent number: 9093021
    Abstract: Methods, apparatuses, and devices for rendering indoor maps on a display device of, for example, a mobile device, are presented. In one example, a processor of a mobile device may receive identifiers, such as alphanumeric identifiers, for points of interest (POI) and map at least portions of the identifiers to colors within a suitable color space, such as a RGB color space.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: July 28, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Jiajian Chen, Hui Chao, Saumitra Mohan Das
  • Patent number: 9082336
    Abstract: A luminescence shock avoidance algorithm selectively limits the brightness level of a display device when the display device is activated in a dark environment to prevent the temporary vision impairment that can occur when a display device is activated in a dark environment. The algorithm receives the state of the display (e.g. on or in standby mode), and can optionally receive an ambient lighting value from an ambient light sensor and a user-selectable manual brightness adjustment setting to determine whether luminescence shock avoidance should even be triggered, and if it is triggered, how much should the brightness level of the display be limited.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: July 14, 2015
    Assignee: Apple Inc.
    Inventor: Kai Achim Pantfoerder
  • Publication number: 20150138223
    Abstract: Embodiments provide techniques for stabilizing coloration for video content containing a plurality of frames. Embodiments include selecting a reference frame from the plurality of frames. A plurality of reference points are identified within the reference frame. Embodiments further include adjusting the coloration of each of two or more unselected frames in the plurality of frames, by identifying a second reference point within the unselected frame, corresponding to one of the plurality of reference points within the reference frame, determining a coloration difference between a depiction of the second reference point and a depiction of the corresponding reference point within the reference frame, and adjusting the coloration of the unselected frame, based on the determined coloration difference.
    Type: Application
    Filed: September 4, 2014
    Publication date: May 21, 2015
    Inventors: Alexander SORKINE HORNUNG, Matthias SCHELKER
  • Patent number: 9036860
    Abstract: The invention discloses a method for editing propagation of video and image content based on local feature structure preservation, comprising: mapping all pixels in the input original image and/or video key frames to a selected feature space; finding K nearest neighbor pixels for each pixel according to feature vectors' Euclidean distance in the selected feature space; using Locally Linear Embedding (LLE) dimension reduction to construct the locally linear relationship between each pixel and its K nearest neighbor pixels in the selected feature space; According to the present invention, it is possible to accurately perform such image or video processing as automatic color transformation, interactive color editing, gray image colorization, video cloning and image matting.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: May 19, 2015
    Assignee: Beihang University
    Inventors: Xiaowu Chen, Dongqing Zou, Qinping Zhao, Jianwei Li, Feng Ding
  • Publication number: 20150130829
    Abstract: An image processing apparatus includes a parameter estimation unit that estimates a first parameter for aligning first output image data with original image data and a second parameter for aligning second output image data with the original image data, a pixel value mapping unit that generates first pixel value mapping data associating color components of a pixel of the first output image data with color components of a corresponding pixel of the original image data and second pixel value mapping data associating color components of a pixel of the second output image data with color components of a corresponding pixel of the original image data, a map estimation unit that obtains a first map and a second map based on the first and second pixel value mapping data, and a conversion unit that converts a pixel value of the original image data based on the first and second maps.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 14, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventors: Tomoyasu AIZAKI, Satoshi NAKAMURA
  • Patent number: 9019294
    Abstract: A first table, which expresses a color reproducible characteristic of a first output device, is generated, and a second table, which expresses a color reproducible characteristic of a second output device, is generated. Color values of grid points of the first table are mapped to a color gamut of the second output device expressed by the second table. A third table, which expresses a relationship between color values of the first table after mapping processing and device values required to reproduce colors of the color values by the second output device, is generated. With reference to the third table, a profile, which expresses a relationship between color values of grid points arranged on a uniform color space, and device values required to reproduce colors of the color values by the second output device, is generated.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: April 28, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takahiro Matsuura
  • Patent number: 9013502
    Abstract: A method for viewing a simulated light output generated for a first display on a second display includes a variety of steps. First, the simulated light output is generated based on qualities of the first display. Next, the simulated light output is compensated for color differences, temporal differences, luminance differences including gamma difference, and differences in viewing environment between the first and the second display, in real-time. Then, the simulated light output that has been compensated for the differences and for viewing environment is output for the second display.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: April 21, 2015
    Assignee: Tektronix, Inc.
    Inventor: Kevin M. Ferguson
  • Patent number: 9013503
    Abstract: A device includes converters for converting first image data of an RGB-type into second image data of a YCbCr-type, into third image data of the YCbCr-type, and into fourth image data of the RGB-type, wherein a CbCr-coordinate system has six regions defined by coordinates of a reference color and of six primary colors, and when coordinates of the second image data are located in a region defined by coordinates of the reference color, a first primary color, and a second primary color, the coordinates of the second image data are determined by the coordinates of the reference color, the first primary color, the second primary color, coordinates of a target reference color corresponding to those of the reference color, coordinates of a first target primary color corresponding to those of the first primary color, and coordinates of a second target primary color corresponding to those of the second primary color.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: April 21, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Won-Woo Jang
  • Publication number: 20150097854
    Abstract: A rendering method includes performing a binary representation of input data by using input data of target subpixels of an RGB stripe structure, such that the binary representation defines binary data, calculating the binary data via a line detection mask to detect a target line made of the target subpixels, rendering adaptation data of a plurality of adaptation subpixels included in an adaptation line corresponding to the target line, and controlling the adaptation data of a plurality of white subpixels corresponding to the target line among a plurality of adaptation subpixels to generate output data.
    Type: Application
    Filed: July 10, 2014
    Publication date: April 9, 2015
    Inventor: Jong-Woong PARK
  • Patent number: 9001400
    Abstract: A method to enable modification of color characteristics of an image. In the method, an image, defined in a first color space, is transformed to a second color space; and display of the transformed image is controlled. A color characteristic of the transformed image is modified using a rule defined in the second color space in response to a user input, and display of the modified transformed image is controlled.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: April 7, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Marti Maria Saguer, Alejandra Terron Arregui, Miguel Angel Lopez Alvarez
  • Patent number: 9001141
    Abstract: An apparatus and method for providing display information generates, independently from an operating system, different screen subsections of a screen image using independent gamut remapping configurations to generate an output image in a target gamut space of a display. The method and apparatus also provides the generated output image for display or may display the generated output image.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: April 7, 2015
    Assignee: ATI Technologies ULC
    Inventors: David I. J. Glen, Jie Zhou
  • Patent number: 8994742
    Abstract: Systems and methods are provided for resolving seams in computer graphics when a two-dimensional image is applied to a three-dimensional structure. The method can include providing a two-dimensional image in a UV space, identifying at least one sub-image on the two-dimensional image, defining a seam connectivity for the two-dimensional image in the UV space, and remapping the location of an object on the two-dimensional image when the location of the object is within at least one seam boundary of the seam map.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: March 31, 2015
    Assignee: 3D Systems, Inc.
    Inventor: Mark Edward Danks
  • Patent number: 8982963
    Abstract: A first image stream has a first dynamic range and a first color space. First and the second image streams are received in a layered codec. The second image stream has a second dynamic range, which is higher than the first dynamic range. The first image stream is in the codec's base layer; the second image stream is in its enhancement layer. The first image stream is encoded to obtain an encoded image stream, which is decoded to obtain a decoded image stream. The decoded image stream is converted from the first non-linear or linear color space to a second, different color space to obtain a color converted image stream. A higher dynamic range image representation of the color converted image stream is generated to obtain a transformed image stream. Inverse tone mapping parameters are generated based on the transformed image stream and the second image stream.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: March 17, 2015
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Walter Gish, Zhen Li, Christopher Vogt
  • Patent number: 8963945
    Abstract: A red, green, and blue (RGB) primary generation system and method for a wide color gamut, and a color encoding system using the RGB primaries. The RGB primary generation system may achieve a wide color gamut by generating a color gamut having a gamut coverage which meets a gamut coverage threshold, meeting a unique hue, having a maximum gamut efficiency, and a minimum quantization error.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: February 24, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yun-Tae Kim, Seo Young Choi, Ho Young Lee, Du-Sik Park, Ji Young Hong
  • Patent number: 8952980
    Abstract: Systems and methods for transforming and displaying a video signal on a display are provided with any number of features. In some embodiments, system is configured to receive a first set of input signals in a controller. The system can determine in the controller a first set of luminances and colors that would be produced on a first display with the first set of input signals. The system can then determine in the controller a second set of luminances that would produce the first set of colors on a second display. The system can then generate in the controller a second set of input signals that would produce the second set of luminances on the second display, and can output the second set of input signals to the second display.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: February 10, 2015
    Assignee: GSI Group, Inc.
    Inventors: Ronald L. Hansen, Jerome Truppa, Amir Baghdadi
  • Patent number: 8953879
    Abstract: A system, method and medium correcting a display image. The system includes a parameter calculation module to calculate a plurality of parameters required for a transform of a first image, based on a plurality of characteristic differences between the first image and a second image, into which the first image is to be transformed to visually match the second image, a first characteristic transform module to transform a first characteristic of the first image using the plurality of calculated parameters, the transformation resulting in an unrelated change to a second characteristic of the first image, and a second characteristic restoration module to restore the second characteristic changed by the transforming of the first characteristic.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: February 10, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Young-shin Kwak, Xiao Kaida, Du-sik Park
  • Patent number: 8947599
    Abstract: A system that adjusts chroma and luma values for a video signal is presented. During operation, the system receives a matrix of coefficients, which when applied to the chroma values and the luma values of a video signal produces substantially the same result as performing a sequence of discrete operations on the chroma values and the luma values, wherein the sequence of discrete operations includes one or more color-representation-conversion operations and one or more processing amplifier operations. For a given pixel of the video signal, the system performs a matrix-multiplication operation between a matrix representation of the chroma values and the luma values for the given pixel and the matrix of coefficients to produce a modified pixel.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: February 3, 2015
    Assignee: Apple Inc.
    Inventors: Samuel A. Figueroa, Jay D. Zipnick
  • Patent number: 8947729
    Abstract: There is provided a color processing apparatus comprising: a calculation unit configured to calculate, for each of a plurality of light sources, a first colorimetric value that is obtained by measuring a color having a spectral reflectance indicated by spectral reflectance information under the light source; a mapping unit configured to obtain, for each of the plurality of light sources, a second colorimetric value by mapping the first colorimetric value of the light source within a gamut under the light source; a color separation unit configured to obtain the output information from a plurality of the second colorimetric values, by adjusting the output information such that an error between a colorimetric value obtained by measuring a color output by the image output apparatus according to the output information under each of the light sources and the second colorimetric value for the light source is minimized.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: February 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Ayato Imai
  • Publication number: 20150029210
    Abstract: Several embodiments of systems and methods are disclosed that create iso-perceptible image data from input image data. Such iso-perceptible image data may be created from Just-Noticeable-Difference (JND) modeling that leverages models from the Human Visual System (HVS). From a set of iso-perceptible image data set, an output image data may be selected, such that the chosen output image data has a less power and/or energy requirement to render than the input image data. Further, the output image data may have a substantially lower power and/or energy requirement than the set of iso-perceptible image data.
    Type: Application
    Filed: March 6, 2013
    Publication date: January 29, 2015
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Scott Daly, Hadi Hadizadeh, Ivan V. Bajic, Parvaneh Saeedi
  • Patent number: 8928687
    Abstract: The present invention discloses a method for RGB color space gamut conversion, including: projecting any point o in RGB color space having source graphic data onto points N, M; projecting point o? corresponding to point o onto points N?, M?; based on matrix equations between point N and point N?, and between point M and point M?, computing point N? and point M?; based on points N?, M?, computing point o? in target cube corresponding to point o in RGB color space having source graphic data; and computing target color after color conversion from any point in source graphic data. The invention also discloses an apparatus for RGB color space gamut conversion and a liquid crystal display device. With this, it is possible to perform color conversion in RGB color space, adjust color performance of output in hue and color purity, and accentuate specific color.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: January 6, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Chih-tsung Kang
  • Patent number: 8928253
    Abstract: The invention relates to a method for generating light with a desired light color by using at least one light-emitting diode emitting red r-LED, at least one light-emitting diode emitting green g-LED, at least one light-emitting diode emitting blue b-LED and at least one light-emitting diode emitting white w-LED. In order to improve the CRI value, according to the invention it is proposed that weighting values ascertained according to the RGB algorithm and further weighting values ascertained according to the RGBW algorithm be combined together by using a correction factor.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: January 6, 2015
    Assignee: Diehl Aerospace GmbH
    Inventors: Swen Bergeler, Yvonne Bodschwinna-Kangarakis, Frank Schmid
  • Publication number: 20150002531
    Abstract: An image processing method and apparatus for a curved display device are provided. The image processing method includes acquiring physical curvature information related to the display device, determining a center region of an input image based on the physical curvature information, generating a pixel-by-pixel spatial indexed gain based on the determined center region of the input image, and correcting a pixel value of the input image by using the pixel-by-pixel spatial indexed gain.
    Type: Application
    Filed: June 9, 2014
    Publication date: January 1, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-ran PARK, Youn-jin KIM, Seong-wook HAN
  • Patent number: 8922578
    Abstract: Methods and systems are provided for merging a plurality of video inputs resulting in a single coherent output. More specifically, in one exemplary embodiment, a device embeds alpha red green blue (ARGB) data in an RGB stream which allows for preservation of the alpha channel over the video interface link.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: December 30, 2014
    Assignee: Hillcrest Laboratories, Inc.
    Inventor: Frank A. Hunleth
  • Publication number: 20140375673
    Abstract: A technique is disclosed to calculate a new pixel value of a particular color of second-viewpoint color image data in such a manner that a difference between the new pixel value of the particular color of the second viewpoint and the pixel value of the particular color of the first-viewpoint color image data maintains correlation with a sum of a difference between the pixel value of a first color component of the second-viewpoint color image data and the pixel value of the first color component of third-viewpoint color image data and a difference between the pixel value of a second color component of the second-viewpoint color image data and the pixel value of the second color component of the third-viewpoint color image data.
    Type: Application
    Filed: September 12, 2014
    Publication date: December 25, 2014
    Inventors: Kenichi ISHIGA, Kiyoshige SHIBAZAKI, Muneki HAMASHIMA, Susumu MORI
  • Patent number: 8908959
    Abstract: According to one embodiment, an image processing apparatus includes a difference calculation unit, an intensity calculation unit, and an enhancing unit. The difference calculation unit calculates, for each partial area of an input image, a difference between a depth value of a subject and a reference value representing a depth as a reference. The intensity calculation unit calculates for each partial area an intensity, which has a local maximum value when the difference is 0 and has a greater value as the absolute value of the difference is smaller. The enhancing unit enhances each partial area according to the intensity to generate an output image.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: December 9, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasunori Taguchi, Nobuyuki Matsumoto