Specified Color Signal Format Patents (Class 348/488)
  • Patent number: 11875549
    Abstract: A data processing method for a biochip comprises: acquiring a biochip image to be detected; performing binarization processing on the biochip image to obtain a binary image; performing a morphological dilation operation on the binary image in a row direction to obtain a first image, and performing a morphological dilation operation on the binary image in a column direction to obtain a second image; performing connected domain detection on the first image in the row direction, and performing connected domain detection on the second image in the column direction, to determine the number of rows and the number of columns of a sample point array and center position information of each sample point.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: January 16, 2024
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Qiong Wu, Zijian Zhao, Yongming Shi, Jijing Huang, Dawei Tang, Zongmin Liu
  • Patent number: 10721424
    Abstract: An analog-to-digital converter (ADC) sampling system and method for imaging and non-imaging systems to conserve power consumption is provided. The ADC sampling system performs only two comparisons for each pixel based on a background value and a threshold value to determine whether the light detected by the pixel is different from a background image.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: July 21, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Pedram Lajevardi, Rainer Blechschmidt
  • Patent number: 9860530
    Abstract: A method and apparatus for loop processing of reconstructed video in an encoder system are disclosed. The loop processing comprises an in-loop filter and one or more adaptive filters. The filter parameters for the adaptive filter are derived from the pre-in-loop video data so that the adaptive filter processing can be applied to the in-loop processed video data without the need of waiting for completion of the in-loop filter processing for a picture or an image unit. In another embodiment, two adaptive filters derive their respective adaptive filter parameters based on the same pre-in-loop video data. In yet another embodiment, a moving window is used for image-unit-based coding system incorporating in-loop filter and one or more adaptive filters. The in-loop filter and the adaptive filter are applied to a moving window of pre-in-loop video data comprising one or more sub-regions from corresponding one or more image units.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: January 2, 2018
    Assignee: HFI INNOVATION INC.
    Inventors: Kun-Bin Lee, Yi-Hau Chen, Chi-Cheng Ju, Yu-Wen Huang, Shaw-Min Lei, Chih-Ming Fu, Ching-Yeh Chen, Chia-Yang Tsai, Chih-Wei Hsu
  • Patent number: 9557998
    Abstract: Systems, apparatuses, and methods for performing delta decoding on packed data elements of a source and storing the results in packed data elements of a destination using a single packed delta decode instruction are described. A processor may include a decoder to decode an instruction, and execution unit to execute the decoded instruction to calculate for each packed data element position of a source operand, other than a first packed data element position, a value that comprises a packed data element of that packed data element position and all packed data elements of packed data element positions that are of lesser significance, store a first packed data element from the first packed data element position of the source operand into a corresponding first packed data element position of a destination operand, and for each calculated value, store the value into a corresponding packed data element position of the destination operand.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: January 31, 2017
    Assignee: Intel Corporation
    Inventors: Elmoustapha Ould-Ahmed-Vall, Thomas Willhalm, Tracy Garrett Drysdale
  • Patent number: 9237303
    Abstract: A device includes a transmitter that transmits, via an interface comprising first, second, and third transmission channels, video data having a 4:1:1 format to a display device. 4:1:1 represents a ratio of a sampling frequencies of a brightness component, to a first color difference component, to a second color difference component. The first and second color difference components of one pixel in a first horizontal line of a first frame of the video data are allocated and transmitted within two clock cycles of the first transmission channel. Brightness components of four pixels in the first horizontal line are allocated and transmitted within two clock cycles of the second and third transmission channels. The transmitter transmits the video data for all of the pixels of the first horizontal line, and thereafter, sets pixels in a second horizontal line as a target to be transmitted.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: January 12, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nobuaki Suzuki, Masahiko Mawatari
  • Patent number: 9188789
    Abstract: A display device for displaying a first image in a first direction and a second image in a second direction, including a display panel having pixels arrayed in a matrix, a backlight configured to emit a light to a back surface of the display panel, and a parallax barrier configured so that a light from the first pixel passes through an opening of the parallax barrier and is emitted to the first direction, and a light from the second pixel passes through the opening of the parallax barrier and is emitted to the second direction. The formula (B?A)/A?1 is satisfied wherein A represents the luminance of the first image when the first image and the second image are black images, and B represents a luminance of the first image when the first image is a black image and the second image is a white image.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: November 17, 2015
    Assignee: Japan Display Inc.
    Inventors: Daichi Suzuki, Toshinori Uehara, Ai Koike
  • Patent number: 9167252
    Abstract: A method of quantization matrix compression in a video encoder is provided that includes preprocessing a quantization matrix by performing at least one selected from down-sampling the quantization matrix and imposing 135 degree symmetry on the quantization matrix, performing zigzag scanning on the pre-processed quantization matrix to generate a one dimensional (1D) sequence, predicting the 1D sequence to generate a residual 1D sequence, and coding the residual 1D sequence using kth order exp-Golomb coding to generate a compressed quantization matrix, wherein k?0.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: October 20, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Minhua Zhou, Vivienne Sze
  • Patent number: 9003755
    Abstract: The present invention provides a method for measuring reflective intensity of display surface, including: obtaining a luminance value of a first display and a luminance value of a second display when displaying, the first display and the second display having the same observed luminance, the peripheral of the surface of the first display being surrounded by light-shielding object, the first display and the second display being placed side by side; and obtaining the reflective intensity of the display surface in the ambient based on the luminance value of the first display and the luminance values of the second display when displaying. As such, the present invention provides convenient and accurate means to measure the reflective intensity of display surface.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: April 14, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Lixuan Chen, Chih-tsung Kang
  • Patent number: 8885102
    Abstract: A device includes a transmitter that transmits, via an interface comprising first, second, and third transmission channels, video data having a 4:1:1 format to a display device. 4:1:1 represents a ratio of a sampling frequencies of a brightness component, to a first color difference component, to a second color difference component. The first and second color difference components of one pixel in a first horizontal line of a first frame of the video data are allocated and transmitted within two clock cycles of the first transmission channel. Brightness components of four pixels in the first horizontal line are allocated and transmitted within two clock cycles of the second and third transmission channels. The transmitter transmits the video data for all of the pixels of the first horizontal line, and thereafter, sets pixels in a second horizontal line as a target to be transmitted.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: November 11, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nobuaki Suzuki, Masahiko Mawatari
  • Patent number: 8866660
    Abstract: A system and method for mitigating Analog to Digital (A/D) clipping is disclosed. The mean and variance of analog input data are tracked and the bits of A/D are dynamically reassigned to keep the input signal within their range. The quantization levels of A/D are dynamically re-mapped to avoid changes in sensitivity of sensor system. The method is based on random walk statistic and keeps the sensitivity of the sensor system constant. Also the system and method provides a way to mitigate A/D clipping that avoids changing the sensitivity by dynamically re-mapping the quantization levels of the A/D, keeping the sensitivity of the system constant.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: October 21, 2014
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Edward C. Real, Joanne K. Como
  • Patent number: 8860881
    Abstract: A digital signage system includes at least one set of differential transmission lines, a transmitter, at least one receiver, and at least one digital signage device. Each set of differential transmission lines includes four pairs of differential transmitting lines. The transmitter converts image and/or audio signal into first to third pairs of differential signals for output to the first to third pairs of differential transmission lines, and receives remote-captured video and/or audio signal via the fourth pair of differential transmission lines. The receiver receives the first to third pairs of differential signal from the first to third pairs of differential transmission lines, and extracts the video and/or audio signal to be displayed on the digital signage device. The receiver receives and processes a remote-captured video and/or audio signal from a remote capture device, and transmits such signal back to the transmitter via the fourth pair of differential transmission lines.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: October 14, 2014
    Assignee: Aten International Co., Ltd.
    Inventors: Fu-Chin Shen, Kuo-Feng Kao
  • Patent number: 8850714
    Abstract: A chromaticity correction device corrects chromaticity of a video signal displayed on a display panel of a display device to correspond to a change in a luminance value of the display panel. The chromaticity correction device includes a luminance detection unit which detects the luminance value, a backlight driving level detection unit which detects a backlight driving level, a temperature detection unit which detects an internal device temperature or an ambient temperature, a reference luminance value calculation unit which estimates a reference luminance value in a characteristic of an initial state, a chromaticity calculation unit which obtains a chromaticity change amount of white point chromaticity and estimated white point chromaticity that is an estimated value of current white point chromaticity, a chromaticity correction value calculation unit which obtains a chromaticity correction value and a chromaticity correction circuit which corrects the chromaticity of the video signal.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: October 7, 2014
    Assignee: NEC Display Solutions, Ltd.
    Inventor: Katsuyuki Matsui
  • Patent number: 8855206
    Abstract: A method and apparatus are provided for coding a sequence of images. The method includes a step of coding at least one block of a current image of the sequence, implementing a prediction associating the block with at least one corresponding block in a reference image. The prediction includes the following steps, for at least one given block of the current image or of the reference image: determination of a plurality of control vectors for the block; at least one splitting of the block into sub-blocks; determination of a plurality of control vectors for the sub-blocks; and determination of a prediction value for at least one point of the current image. Moreover, the method includes a step of inserting, into a signal representative of the sequence, information regarding reconstruction of the control vectors for the given block.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: October 7, 2014
    Assignee: France Telecom
    Inventors: Stéphane Pateux, Isabelle Amonou, Nathalie Cammas, Sylvain Kervadec
  • Patent number: 8817039
    Abstract: Provided is an image processing device which enables image display that takes full advantage of a color reproduction performance of a panel without providing a viewer with a feeling of strangeness. An image processing device includes: a color gamut conversion processor configured to convert inputted data into RGB data according to a liquid crystal panel; a weighting factor calculator configured to calculate a weighting factor; a first post-color-gamut-conversion data weighting processor configured to perform weighting processing to the RGB data; an inputted data weighting processor configured to perform weighting processing to the inputted data; and an output adder configured to add data after the weighting processing to generate RGB data to be supplied to the liquid crystal panel.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: August 26, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Xiaomang Zhang, Akiko Yoshida
  • Patent number: 8810808
    Abstract: Methods of optimizing the diameters of nanowire photodiode light sensors. The method includes comparing the response of nanowire photodiode pixels having predetermined diameters with standard spectral response curves and determining the difference between the spectral response of the photodiode pixels and the standard spectral response curves. Also included are nanowire photodiode light sensors with optimized nanowire diameters and methods of scene reconstruction.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: August 19, 2014
    Assignee: Zena Technologies, Inc.
    Inventor: Munib Wober
  • Patent number: 8803903
    Abstract: A color space determination device may include a sampling configuration unit and determination unit. The sampling configuration unit may be configured to determine a sampling ratio and a sampling number based on a resolution of input video data, the sampling ratio being a ratio of a number of the input video data to be sampled to a total number of the input video data included in a frame, the sampling number being a number of frames to be sampled. The determination unit may be configured to receive the input video data in units of frames, to sample the input video data with the sampling ratio for each of the sampling number of frames, and to generate a color space signal representing a color space of the input video data based on the sampled input video data that are sampled from the sampling number of frames of the input video data.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: August 12, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Hyun Lee, Hong-Mi Choi, Taek-Kyun Shin
  • Patent number: 8766814
    Abstract: A motorman's cab display system includes a motorman's cab display apparatus that can automatically adjust display luminance of a display device without using an illuminance sensor. The motorman's cab display apparatus determines, based on location information of a train transmitted from a train information control system, whether the train is traveling in a tunnel, sets, when determining that the train is traveling in the tunnel, as the luminance of a display screen, luminance for inside of tunnel set in advance, and sets, when determining that the train is traveling outside the tunnel, as luminance of the display screen, luminance information for outside of tunnel set in advance. A display control method for motorman's cab display apparatuses includes: calculating a traveling location of the train; and adjusting the luminance of the display screen according to the luminance information output from a luminance determining unit.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: July 1, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Norishige Emoto, Kengo Kobatake
  • Patent number: 8724708
    Abstract: A segment allocation determination unit of an image decoding device determines an allocation of segments, in accordance with processing capabilities of the image decoding units, so that the processing times of the image decoding units are equal. When a first error detection unit detects an error, a segment allocation determination unit performs control so that the segment including the error is allocated to an image decoding unit to which a predicted reference image of the segment is allocated. When any of second error detection units detect an error, the segment allocation determination unit controls allocation of the next series of segments with consideration to a bit amount skipped due to the error. This enables providing an image decoding device that can efficiently realize decoding with a plurality of image decoding units even when an error is detected.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: May 13, 2014
    Assignee: Panasonic Corporation
    Inventor: Takashi Hashimoto
  • Patent number: 8630356
    Abstract: Disclosed are a filter and a method to improve the objective and subjective video coding performance The filter comprises: a parameter estimation unit configured to determine means and variances from a pilot frame; a filter unit configured to receive quantized residual coefficients in video coding process and restore coefficients from the quantized residual coefficients and the determined means and variances; an inverse ICT unit configured to apply an inverse ICT to the restored coefficients to obtain a filtered frame; a rate-distortion optimization unit configured to determine a quadtree block partition index; and an adaptive block selection unit configured to select final blocks according to quadtree block partition index, the final blocks being utilized to form the filtered frame.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: January 14, 2014
    Assignee: The Chinese University of Hong Kong
    Inventors: Renqi Zhang, Wai Kuen Cham
  • Patent number: 8625666
    Abstract: A system for communicating video, the video including 4:4:4 color space frames, includes a 4:2:0 video encoder having a 4:4:4 to 4:2:0 color space frame converter and a 4:2:0 video decoder having a 4:2:0 to 4:4:4 color space frame converter, communicatively connected to the 4:2:0 video encoder. The 4:2:0 video encoder, without conversion by the 4:4:4 to 4:2:0 color space converter, communicates the video as a plurality of encoded 4:2:0 color space frames to the decoder. The 4:2:0 video decoder, without conversion by the 4:2:0 to 4:4:4 color space frame converter, saves the video as a plurality of 4:4:4 color space frames in memory. Each of the 4:4:4 color space frames in memory of the decoder device is identical to its corresponding 4:4:4 color space frame of the video at the encoder device.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: January 7, 2014
    Inventor: Steve Bakke
  • Publication number: 20140002737
    Abstract: One or more versions of video or other image content may be generated by obtaining first histogram data for a first version of the video content; obtaining a second version of the video content; obtaining second histogram data for the second version of the video content; generating a mapping from the second version of the video content to an additional version of the video content by performing a number of iterations of a progressive histogram matching algorithm, the number of iterations being fewer than a maximum number of iterations of the progressive histogram matching algorithm; and applying the mapping to generate the additional version of the video content from the second version of the video content.
    Type: Application
    Filed: March 16, 2012
    Publication date: January 2, 2014
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Gerwin Damberg, Anders Ballestad
  • Patent number: 8611426
    Abstract: An image is divided into blocks, and each of the blocks is categorized as a block of interest or a block of non-interest. In signal processing in a camera signal processing unit (9), a block of interest is controlled using a parameter given by a main control unit (22) such that a larger amount of high-frequency components are left than in a block of non-interest. A compression/decompression processing unit (19) allocates a large amount of codes to a block of interest to effectively suppress a deterioration of image quality in a region of interest. There is provided an image-sensing apparatus which can compress an image into a limited amount of codes such that any deterioration of image quality is unnoticeable.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: December 17, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Norihiro Kawahara
  • Publication number: 20130271654
    Abstract: A display device includes a display panel including red, blue, green and white (RBGW) sub pixels, a signal conversion apparatus for converting an input signal having a first color format and color arrangement into a display signal having a second color format and color arrangement, a color conversion unit configured to convert the first color format into the second color format; a sub pixel position determining signal which determines a color arrangement of a sub pixel position of the display panel, and a sub pixel signal generation unit configured to generate a sub pixel signal having the second color format and color arrangement based on the sub pixel position determining signal.
    Type: Application
    Filed: June 12, 2013
    Publication date: October 17, 2013
    Inventor: Tatsuki Inuzuka
  • Patent number: 8514411
    Abstract: Methods of optimizing the diameters of nanowire photodiode light sensors. The method includes comparing the response of nanowire photodiode pixels having predetermined diameters with standard spectral response curves and determining the difference between the spectral response of the photodiode pixels and the standard spectral response curves. Also included are nanowire photodiode light sensors with optimized nanowire diameters and methods of scene reconstruction.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: August 20, 2013
    Assignee: Zena Technologies, Inc.
    Inventor: Munib Wober
  • Patent number: 8427499
    Abstract: A display color-correcting system is provided. Color response values are measured that go into the vertices of polyhedra in a cubic color output space of the display. A set of corresponding values for the display is built from intermediate values determined between the measured color response values. The intermediate values are determined by decomposition and interpolation of interpolation volumes in the cubic color output space. Each of the interpolation volumes is the combined volume of a selected polyhedron within the cubic color output space and a predetermined volume of space between the selected polyhedron and the next polyhedron within the cubic color output space. The set of corresponding values is converted into decoupled RGB adjustment values that specify the RGB signals independently for the display to produce corrected colors. The RGB adjustment values are saved into one or more look-up tables.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: April 23, 2013
    Assignee: Apple Inc.
    Inventors: Gabriel G. Marcu, Wei Chen
  • Patent number: 8395702
    Abstract: Systems for transmitting and receiving signals of video digital images for links of the “LVDS” type comprise a transmit module, a transmission link and a receive module. The “RGB” video signal comprises the colour and synchronization signals and a clock signal. The “LVDS” video signal transmitted via the transmission link comprises several primary signals, the first primary signal dedicated to the clock signal, the second primary signal comprising the synchronization information, the other primary signals comprising only the colour encoding information. The function of the “LVDS” transmit module is to encode the “RGB” video signal into an “LVDS” video signal and the function of the receive module is to decode the “LVDS” signal into an “RGB” signal.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: March 12, 2013
    Assignee: Thales
    Inventors: Yves Sontag, Michael Guffroy
  • Publication number: 20130051553
    Abstract: A system and method for encoding, transmitting and decoding data is described which defines a plurality of bit patterns into a predetermined color combination of red/green/blue colors. A message is formed from the plurality of bit patterns and the message is then arranged into a recognizable format with a message protocol. The message is transmitted to a decoder, which decodes the message and displays the message on a display. A use is provided to establish a two factor authentication mechanism to authenticate a user by a requester.
    Type: Application
    Filed: August 24, 2011
    Publication date: February 28, 2013
    Inventor: Jeffrey Thomas CESNIK
  • Patent number: 8284315
    Abstract: A PAL signal demodulating apparatus comprises BPF filters that perform band pass filtering to pass a chroma band for frames 1 to 5, thereby producing the BPF output signals for the frames, a 3D color phase distortion correcting color signal acquiring unit that calculates correlations between frames 1 and 3 and between frames 3 and 5 and takes a weighted average of the BPF output signals for frames 2 and 4 with weights according to the two calculated correlations, thereby producing a 3D color phase distortion correcting color signal N, and a carrier chrominance signal extracting unit that takes the addition/subtraction of the BPF output signal for frame 3 and the 3D color phase distortion correcting color signal, thereby extracting carrier chrominance signals, to perform correctly U/V separation for a line different in color from its preceding and following lines in the same frame.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: October 9, 2012
    Assignee: Renesas Electronics Corporation
    Inventor: Kenji Yamashita
  • Patent number: 8280144
    Abstract: Systems and methods are provided for analyzing material properties of an object using hyperspectral imaging. An exemplary method includes obtaining a hyperspectral image of an object; analyzing the hyperspectral image according to an algorithm; and correlating data obtained from the analysis with material properties of the object.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: October 2, 2012
    Assignee: Goldfinch Solutions, LLC
    Inventors: Jeyamkondan Subbiah, Chris Richard Calkins, Ashok Samal
  • Patent number: 8269985
    Abstract: Methods of optimizing the diameters of nanowire photodiode light sensors. The method includes comparing the response of nanowire photodiode pixels having predetermined diameters with standard spectral response curves and determining the difference between the spectral response of the photodiode pixels and the standard spectral response curves. Also included are nanowire photodiode light sensors with optimized nanowire diameters and methods of scene reconstruction.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: September 18, 2012
    Assignee: Zena Technologies, Inc.
    Inventor: Munib Wober
  • Patent number: 8269787
    Abstract: A method for color grading within a component color space associated with a display includes receiving a source image comprising a plurality of pixels, wherein each pixel is associated with a color comprising a plurality of color component values in the component color space, wherein the component color space comprises RGB, and wherein a pixel is associated with a color inside a gamut of the display but outside a gamut of a target media, receiving a color grading signal from a user, modifying the color associated with the pixel from the plurality of pixels in response to the color grading signal, to form a graded image comprising the pixel, wherein the pixel is associated with a graded color comprising a plurality of color component values, displaying the graded image on the display to the user, automatically performing a gamut remapping of the graded color associated with the pixel, to form a gamut remapped image comprising the pixel, wherein the pixel is associated with a gamut remapped color comprising a p
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: September 18, 2012
    Assignee: Pixar
    Inventors: Rod Bogart, Rick Sayre
  • Patent number: 8159500
    Abstract: A method for color grading an image within RGB color space including color values includes receiving a source image having first pixels, wherein second pixels from the first pixels are associated with colors within a first gamut but not a second gamut, receiving a color grading signal, determining a graded image by automatically modifying the colors associated with second pixels to become modified colors in response to the color grading signal, wherein the modified colors are within the second gamut, and wherein at least one color component value of the colors of the second pixels is similar to at least one color component value of the modified colors of the second pixels, wherein ordinality of colors in the one color component of the second pixels in the source image are preserved in the modified colors in the graded image, and storing the color grading signal in a memory.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: April 17, 2012
    Assignee: Pixar
    Inventors: Rod Bogart, Rick Sayre
  • Patent number: 8130317
    Abstract: Methods and systems for performing interleaved to planar transformation operations in a mobile terminal having a video display are disclosed. Aspects of one method may include extracting similar color space components from a received block of interleaved YUV color space format video data as data is received, where the block may comprise 128 bits. The similar color space components may be extracted and transferred to a memory, where each type of the similar color space components may be stored contiguously in separate portions of the memory in planar format. The transferring of data may be via direct memory access of 32-bit words. When the line buffer that is receiving the interleaved video data is full, a direct memory access operation may be initiated. Direct memory access operation may also be initiated when the data for a similar color space component for a complete horizontal line is extracted.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: March 6, 2012
    Assignee: Broadcom Corporation
    Inventor: Weidong Li
  • Publication number: 20120050611
    Abstract: Systems for transmitting and receiving signals of video digital images for links of the “LVDS” type comprise a transmit module, a transmission link and a receive module. The “RGB” video signal comprises the colour and synchronization signals and a clock signal. The “LVDS” video signal transmitted via the transmission link comprises several primary signals, the first primary signal dedicated to the clock signal, the second primary signal comprising the synchronization information, the other primary signals comprising only the colour encoding information. The function of the “LVDS” transmit module is to encode the “RGB” video signal into an “LVDS” video signal and the function of the receive module is to decode the “LVDS” signal into an “RGB” signal.
    Type: Application
    Filed: August 17, 2011
    Publication date: March 1, 2012
    Applicant: Thales
    Inventors: Yves SONTAG, Michael GUFFROY
  • Publication number: 20120038782
    Abstract: A system and method for enhancing data coherency and potential of at least one metadata associated with a video data configured to operate in a visual dynamic range (VDR) format is disclosed. The system comprises a metadata framing structure which includes a header start of frame bit set, a packet type bit set, a configuration bit set, a variable depth configuration/metadata bit set, a header end of frame bit set, a timestamp bit set for specifying a frame delay count to apply the at least one metadata to the video data and a checksum check bit set. The at least one metadata is designed to embed within a code word guard bit position of at least one color channel of the video data and adaptable to embed within the VDR pipeline to enhance the quality of the video data.
    Type: Application
    Filed: August 1, 2011
    Publication date: February 16, 2012
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Neil W. Messmer, Brent Wilson
  • Patent number: 8094167
    Abstract: A display color correcting method is provided. A first plurality of input color values are provided to a display, wherein the input color values correspond to a plurality of vertices of a plurality of cubes within a cubic color space of the display. Each cube has two vertices arranged along a gray diagonal of the cubic color space. A response value is measured for each of the color values and a first plurality of calibration values is determined, the calibration values corresponding to the first plurality of input color values. A second plurality of calibration values corresponding to a second plurality of input color values is determined by interpolating the first plurality of calibration values.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: January 10, 2012
    Assignee: Apple Inc.
    Inventors: Gabriel G. Marcu, Wei Chen
  • Patent number: 8049818
    Abstract: The present invention relates to a video processing method and apparatus capable of performing a proper video process corresponding to various color systems. A decoder extracts color information from a received video signal including vertical synchronous information for a vertical scanning frequency of a picture, color information of the picture, and frequency information corresponding to the color information. A frequency evaluator evaluates the received vertical scanning frequency and the received frequency of the video signal color information on the basis of the vertical synchronous information and the frequency information of the color information.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: November 1, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jeong-Shan Na
  • Patent number: 8044969
    Abstract: A Personal Computer (PC) adjusts a color of an image received from a digital camera to produce an estimated reflectance spectrum and/or to convert the color to a new color space. First, an input compensation transform is generated, e.g. based on a Macbeth color chart in the image, to compensate for the sensitivity of the camera used to generate the image to different wavelengths of light and the illumination spectrum incident on an object of interest to which the image relates. In order to estimate the reflectance spectrum, a reflectance spectrum estimation transform is then generated by the PC. In order to convert the color of the image to the new color space, a color space conversion transform is generated by the PC. Both the reflectance spectrum estimation transform and the color space conversion transform are based on the input compensation transform and reference reflectance spectra stored in a reference reflectance spectra database.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: October 25, 2011
    Assignee: Chrometrics Limited
    Inventors: Daniel Robert Colaco Osorio, John Conrad Anderson
  • Patent number: 8040433
    Abstract: A video output apparatus includes a video output unit which outputs a video signal while switching the format of the video signal between a first format and a second format for expressing color differently. The video output apparatus also includes a mute signal generation unit which generates, as a muting video signal, a specialized video signal expressing a color in which the difference between the color displayed when the specialized video signal is interpreted in its own format and the color displayed when the specialized video signal is interpreted in a different format is a minimum. The video output apparatus further includes a selection unit, which selects one of the video signal outputted by said video output unit and the mute signal generated by said mute signal generation unit and outputs the selected signal, and a control unit, which causes the selection unit to select the mute signal in a period including the switch performed by the video output unit.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: October 18, 2011
    Assignee: Panasonic Corporation
    Inventors: Takayuki Matsui, Isamu Ishimura
  • Publication number: 20110199537
    Abstract: An apparatus comprising a first circuit, a processing circuit and a conversion circuit. The first circuit may be configured to generate a first intermediate signal in a second format in response to an input signal in a first format. The processing circuit may be configured to generate a second intermediate signal and a third intermediate signal in response to the first intermediate signal. The conversion circuit may be configured to generate an output signal in the first format in response to the second intermediate signal and the third intermediate signal. The processing circuit may be configured to implement color blending on the second intermediate signal in the second format prior to conversion to the first format and pass the third intermediate signal without color blending.
    Type: Application
    Filed: February 16, 2010
    Publication date: August 18, 2011
    Inventors: Hui Zhou, Christopher A. Aardema
  • Patent number: 7978203
    Abstract: A method for color grading within a component color space associated with a display includes receiving a source image comprising a plurality of pixels, wherein each pixel is associated with a color comprising a plurality of color component values in the component color space, wherein the component color space comprises RGB, and wherein a pixel is associated with a color inside a gamut of the display but outside a gamut of a target media, receiving a color grading signal from a user, modifying the color associated with the pixel from the plurality of pixels in response to the color grading signal, to form a graded image comprising the pixel, wherein the pixel is associated with a graded color comprising a plurality of color component values, displaying the graded image on the display to the user, automatically performing a gamut remapping of the graded color associated with the pixel, to form a gamut remapped image comprising the pixel, wherein the pixel is associated with a gamut remapped color comprising a p
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: July 12, 2011
    Assignee: Pixar
    Inventors: Rod Bogart, Rick Sayre
  • Patent number: 7965301
    Abstract: A method, system, and computer-readable storage medium are disclosed for color conversion of a digital image. The digital image comprises a source set of pixels. A perceptual distance may be determined between the source set of pixels and a respective destination set of pixels for each of a plurality of rendering intents. A rendering intent corresponding to the smallest perceptual distance may be selected automatically. The source set of pixels may be converted to an output set of pixels using the selected rendering intent.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: June 21, 2011
    Assignee: Adobe Systems Incorporated
    Inventor: Chintan Intwala
  • Patent number: 7924291
    Abstract: A display color-correcting system is provided. Color response values are measured that go into the vertices of polyhedra in a cubic color output space of the display. A set of corresponding values for the display is built from intermediate values determined between the measured color response values. The intermediate values are determined by decomposition and interpolation of interpolation volumes in the cubic color output space. Each of the interpolation volumes is the combined volume of a selected polyhedron within the cubic color output space and a predetermined volume of space between the selected polyhedron and the next polyhedron within the cubic color output space. The set of corresponding values is converted into decoupled RGB adjustment values that specify the RGB signals independently for the display to produce corrected colors. The RGB adjustment values are saved into one or more look-up tables.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: April 12, 2011
    Assignee: Apple Inc.
    Inventors: Gabriel G. Marcu, Wei Chen
  • Publication number: 20100302440
    Abstract: Methods of optimizing the diameters of nanowire photodiode light sensors. The method includes comparing the response of nanowire photodiode pixels having predetermined diameters with standard spectral response curves and determining the difference between the spectral response of the photodiode pixels and the standard spectral response curves. Also included are nanowire photodiode light sensors with optimized nanowire diameters and methods of scene reconstruction.
    Type: Application
    Filed: May 26, 2009
    Publication date: December 2, 2010
    Applicant: ZENA TECHNOLOGIES, INC.
    Inventor: Munib Wober
  • Patent number: 7777760
    Abstract: A display color-correcting system is provided. Color response values are measured that go into the vertices of polyhedra in a cubic color output space of the display. A set of corresponding values for the display is built from intermediate values determined between the measured color response values. The intermediate values are determined by decomposition and interpolation of interpolation volumes in the cubic color output space. Each of the interpolation volumes is the combined volume of a selected polyhedron within the cubic color output space and a predetermined volume of space between the selected polyhedron and the next polyhedron within the cubic color output space. The set of corresponding values is converted into decoupled RGB adjustment values that specify the RGB signals independently for the display to produce corrected colors. The RGB adjustment values are saved into one or more look-up tables.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: August 17, 2010
    Assignee: Apple Inc.
    Inventors: Gabriel G. Marcu, Wei Chen
  • Patent number: 7728907
    Abstract: A method (300) of converting interlaced Moving Picture Experts Group (MPEG) video signals to progressive video signals can include receiving an interlaced video signal representing a luma component specifying luma lines and a chroma component specifying chroma lines (310) wherein the chroma component can specify approximately one-half the number of lines of the luma component. The interlaced video signal can be decoded and the number of the chroma lines can be increased to approximately the same as the number of the luma lines (320). The number of chroma lines of the interlaced video signal then can be decreased (340), to substantially reverse the previous increase. The interlaced video signal then can be deinterlaced to produce a progressive video signal (350), which can be processed further (360) as needed.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: June 1, 2010
    Assignee: Thomson Licensing
    Inventor: Donald Henry Willis
  • Patent number: 7710434
    Abstract: Image processing in mobile devices is optimized by combining at least two of the color conversion, rotation, and scaling operations. Received images, such as still images or frames of video stream, are subjected to a combined transformation after decoding, where each pixel is color converted (e.g. from YUV to RGB), rotated, and scaled as needed. By combining two or three of the processes into one, read/write operations consuming significant processing and memory resources are reduced enabling processing of higher resolution images and/or power and processing resource savings.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: May 4, 2010
    Assignee: Microsoft Corporation
    Inventor: Chuang Gu
  • Patent number: 7701466
    Abstract: Systems and methods for processing signals are disclosed. The method may include, in a communication device that includes a chip operating to processing video signals, receiving video data from a camera. The received video data may include alternating YUV formatted video data and RGB formatted video data. The received video data may be separated into separate YUV images and separate RGB images. The separate YUV images may be transferred to a first device, and the separate RGB images may be transferred to a second device. The camera may be configured to generate the video data that includes alternating YUV formatted video data and RGB formatted video data. The separate YUV images may be DMA transferred to the first device. A DMA controller may be configured to alternately transfer the separate YUV images and separate RGB images. The alternate transfer via the DMA controller may occur without assistance from on-chip processor.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: April 20, 2010
    Inventor: Joy Li
  • Patent number: 7688333
    Abstract: An apparatus including a first circuit, a second circuit and a third circuit. The first circuit may be configured to collect color statistics. The second circuit may be configured to sort colors based upon the color statistics collected by the first circuit. The third circuit may be configured to generate a mapping function between the sorted colors and a color space of a receiving standard.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: March 30, 2010
    Assignee: LSI Corporation
    Inventors: Gregory R. Maertens, Diego Vianello
  • Patent number: 7688334
    Abstract: Methods and systems for video format transformation in a mobile terminal having a video display may include converting interleaved YUV 4:2:2 color space video data to YUV 4:2:0 color space video data as the interleaved YUV 4:2:2 color space video data is received. The conversion may use Y, U, and V components in the interleaved YUV 4:2:2 color space video data for a horizontal line of video data. The conversion may also use only a Y component in the interleaved YUV 4:2:2 color space video data for a previous horizontal line or a successive horizontal line of video data. The converted 4:2:0 color space video data may be transferred to memory via, for example, direct memory access. The YUV 4:2:0 color space video data may be transferred to the memory as, for example, 32-bit words.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: March 30, 2010
    Assignee: Broadcom Corporation
    Inventor: Weidong Li