Patents Examined by Young Lee
  • Patent number: 10297008
    Abstract: Methods, systems, and computer programs for improving compressed image chroma information. In one aspect of the invention, a resolution for a red color component of a color video image is used that is higher than the resolution for a blue color component of the color video image. Another aspect includes utilizing a lower or higher value of a quantization parameter (QP) for one or more chroma channels as compared to the luminance channel. Another aspect is use of a logarithmic representation of a video image to benefit image coding. Another aspect uses more than two chroma channels to represent a video image.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: May 21, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Gary A. Demos
  • Patent number: 10225577
    Abstract: The present invention presents fully noncausal predictive encoding and decoding methods for image, video and other signal coding. The presented noncausal predictive image coding methods largely reduce the prohibitive computational cost of the prior invention. The presented noncausal signal encoding method comprises: (1) splitting the source signal into a plurality of noncausal coding units; (2) extending each noncausal coding unit with the selected extension type; and (3) encoding each noncausal coding unit with the selected intra-unit noncausal predictor and intra-unit noncausal predictive encoding method.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: March 5, 2019
    Inventor: Shidong Chen
  • Patent number: 10178386
    Abstract: An image decoding apparatus that includes a motion compensation prediction circuit configured to conduct motion compensation prediction for each of blocks to be decoded by using the reconstructed image, an inverse transformation circuit configured to conduct inverse orthogonal transformation for the data of the blocks to be decoded, and a determination circuit configured to determine a filtering strength and whether or not to conduct filtering, with respect to each of the boundaries. In addition, the determining circuit is configured to determine filtering is conducted when at least one of the two adjacent blocks is intra-coded, and filtering is not conducted when both of the two adjacent blocks are not intra-coded, a non-zero transformation coefficient is not coded in both of the two adjacent blocks, the two adjacent blocks are predicted by the same reference frame, and an absolute value of a difference between motion vectors of the two adjacent blocks is smaller than a specified threshold value.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: January 8, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Shijun Sun, Shawmin Lei, Hiroyuki Katata
  • Patent number: 10158865
    Abstract: Methods, systems, and computer programs for improving compressed image chroma information. In one aspect of the invention, a resolution for a red color component of a color video image is used that is higher than the resolution for a blue color component of the color video image. Another aspect includes utilizing a lower or higher value of a quantization parameter (QP) for one or more chroma channels as compared to the luminance channel Another aspect is use of a logarithmic representation of a video image to benefit image coding. Another aspect uses more than two chroma channels to represent a video image.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: December 18, 2018
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Gary A. Demos
  • Patent number: 10110908
    Abstract: Methods, systems, and computer programs for improving compressed image chroma information. In one aspect of the invention, a resolution for a red color component of a color video image is used that is higher than the resolution for a blue color component of the color video image. Another aspect includes utilizing a lower or higher value of a quantization parameter (QP) for one or more chroma channels as compared to the luminance channel. Another aspect is use of a logarithmic representation of a video image to benefit image coding. Another aspect uses more than two chroma channels to represent a video image.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: October 23, 2018
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Gary A. Demos
  • Patent number: 10068140
    Abstract: A vehicle movement parameter, such as ego-speed, is estimated using real-time images captured by a single camera. The captured images may be analyzed by a pre-trained convolutional neural network to estimate vehicle movement based on monocular video data. The convolutional neural network may be pre-trained using filters from a synchrony autoencoder that were trained using unlabeled video data captured by the vehicle's camera while the vehicle was in motion. A parameter corresponding to the estimated vehicle movement may be output to the driver or to a driver assistance system for use in controlling the vehicle.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: September 4, 2018
    Assignees: Bayerische Motoren Werke Aktiengesellschaft, NAUTO, Inc.
    Inventors: Ludmila Levkova, Koyel Banerjee
  • Patent number: 10051269
    Abstract: Systems and methods may be provided for determining whether or not to output the “decoded pictures yet to be output” (DPYTBO) after decoding a random access point (RAP) picture of the second of two consecutive coded video sequences in a bitstream. The DPYTBO pictures may reside in a portion of memory coupled to a video decoder. The portion of memory may correspond to the Decoder Picture Buffer (DPB) of the video decoder. The picture resolution in the bitstream is allowed to change only at the start of a CVS. The first coded picture in a coded video sequence (CVS) may be a RAP picture. The second CVS may or may not have a picture resolution that is different from the picture resolution corresponding to the first CVS.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: August 14, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Arturo A. Rodriguez, Anil Kumar Katti, Hsiang-Yeh Hwang
  • Patent number: 10015524
    Abstract: A frame coding unit generates individual picture signal information from a moving picture signal, and outputs a frame code value which is a numeric value to be obtained as a result of coding picture signal information of each frame. A variable length coding unit decomposes the frame code value into unit frame code values which are basic units of coding, converts the unit frame code values into frame code words using only a single code table, and constructs a frame stream by combining the converted frame code words. A multiplexing unit multiplexes a header stream which is constructed through a method equivalent to a conventional method and the frame stream, and constructs a picture coded signal.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: July 3, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Shinya Kadono, Makoto Hagai
  • Patent number: 10015517
    Abstract: A coding distortion removal method is provided for removing coding distortion in an area disposed on both sides of a block boundary between a first block and an adjacent second block in a picture having a plurality of blocks, each block being adaptively coded either as a field structure block, comprising only even field pixels or comprising only odd field pixels, or a frame structure block, comprising odd field pixels and even field pixels. The method includes detecting whether the block boundary between the first block and the adjacent second block is a block boundary between a field structure block and a frame structure block, and performing a coding distortion removal process on the first block and the adjacent second block. The coding distortion removal process includes determining whether coding distortion removal is needed, determining the number of pixels to be processed, and removing coding distortion.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: July 3, 2018
    Assignee: GODO KAISHA IP BRIDGE 1
    Inventors: Shinya Kadono, Sheng Shen, Teck Wee Foo, Chak Joo Lee, Zhong Xue
  • Patent number: 10008003
    Abstract: A process generates a lookup table to estimate spatial depth in a visual scene. The process identifies subsets of illuminators of a camera system with image sensors and illuminators. The image sensors are associated with multiple pixels. For each pixel, and for each of multiple depths from the pixel, the process simulates a virtual surface at the depth. For each subset of the subsets of illuminators, the process simulates illumination of the virtual surface from the subset and determines an expected light intensity at the pixel from light reflected from the virtual surface due to the simulated illumination. The process forms intensity information from the expected light intensity determined for the pixel for each of the depths and each of the subsets. The process constructs a lookup table comprising the intensity information. The lookup table associates the intensity information for each pixel with the respective depth and the respective subset.
    Type: Grant
    Filed: April 30, 2017
    Date of Patent: June 26, 2018
    Assignee: GOOGLE LLC
    Inventors: Ghulam Ahmed Kirmani, Andrea Colaco, Dongeek Shin
  • Patent number: 9986264
    Abstract: A frame coding unit generates individual picture signal information from a moving picture signal, and outputs a frame code value which is a numeric value to be obtained as a result of coding picture signal information of each frame. A variable length coding unit decomposes the frame code value into unit frame code values which are basic units of coding, converts the unit frame code values into frame code words using only a single code table, and constructs a frame stream by combining the converted frame code words. A multiplexing unit multiplexes a header stream which is constructed through a method equivalent to a conventional method and the frame stream, and constructs a picture coded signal.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: May 29, 2018
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Shinya Kadono, Makoto Hagai
  • Patent number: 9986265
    Abstract: A frame coding unit generates individual picture signal information from a moving picture signal, and outputs a frame code value which is a numeric value to be obtained as a result of coding picture signal information of each frame. A variable length coding unit decomposes the frame code value into unit frame code values which are basic units of coding, converts the unit frame code values into frame code words using only a single code table, and constructs a frame stream by combining the converted frame code words. A multiplexing unit multiplexes a header stream which is constructed through a method equivalent to a conventional method the frame stream, and constructs a picture coded signal.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: May 29, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Shinya Kadono, Makoto Hagai
  • Patent number: 9986249
    Abstract: Methods, systems, and computer programs for improving compressed image chroma information. In one aspect of the invention, a resolution for a red color component of a color video image is used that is higher than the resolution for a blue color component of the color video image. Another aspect includes utilizing a lower or higher value of a quantization parameter (QP) for one or more chroma channels as compared to the luminance channel. Another aspect is use of a logarithmic representation of a video image to benefit image coding. Another aspect uses more than two chroma channels to represent a video image.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: May 29, 2018
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Gary A. Demos
  • Patent number: 9961358
    Abstract: In a method and apparatus for predictive Intra coding of a non-square block using modified mode-dependent coefficient scanning (MDCS), the modified MDCS is derived from the MDCS that is designed for a square block. The mapped Intra modes for the non-square block are derived by mapping the Intra modes for the square block to the mapped Intra modes for the non-square block. The mapped Intra modes are divided into multiple groups including a first modified angular group and a second modified angular group. The modified MDCS modifies the number of the mapped Intra modes in the first modified angular group or the second modified angular group by comparing an angle spanned by the mapped Intra modes in the first modified angular group or the second modified angular group with the angle spanned by the corresponding Intra modes of the conventional MDCS.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: May 1, 2018
    Assignee: MEDIATEK SINGAPORE PTE. LTD.
    Inventors: Shan Liu, Zhenzhong Chen
  • Patent number: 9948903
    Abstract: A method for configuration of video stream output from a digital video camera. A digital video camera connected to a communication network, using a first video stream of a scene is produced; a second video stream of the scene is produced; at a client connected to the communication network, the first and second video streams are received and at least one video stream parameter of the first set of video stream parameters is caused to be adjusted such that a bit rate of the first video stream is affected; at the digital video camera, the producing of the first video stream is continuously adjusted based on the caused adjustment of the at least one video stream parameter of the first set of video stream parameters; and on a display of the client, a portion of each frame of the first video stream are continuously displayed.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: April 17, 2018
    Assignee: Axis AB
    Inventors: Marcus Williamsson, Daniel Molin, Magnus Erkenfelt
  • Patent number: 9930341
    Abstract: An example method for decoding video data includes receiving syntax elements (SEs) for a component of a block vector that represents a displacement between a current block of video data and a predictor block of video data; decoding the SEs to determine a value of the component by at least: decoding a first SE to determine whether or not an absolute value of the component (AbsValcomp) is greater than zero; where AbsValcomp is greater than zero, decoding a second SE to determine whether AbsValcomp is greater than a threshold based on an order of a set of codes; where AbsValcomp is greater than the threshold, decoding, using the set of codes, a third SE to determine AbsValcomp minus an offset based on the order of the set of codes; and where AbsValcomp is greater than zero, decoding a fourth SE to determine a sign of the value of the component.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: March 27, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Krishnakanth Rapaka, Marta Karczewicz, Chao Pang, Joel Sole Rojals
  • Patent number: 9930340
    Abstract: Techniques and systems are provided for encoding video data. For example, a method of encoding video data includes generating an encoded video bitstream including multiple layers. The encoded video bitstream includes a parameter set defining parameters of the encoded video bitstream. The method further includes determining one or more parameters of the parameter set that include information describing a first sub-bitstream of the encoded video bitstream that includes one or more layers with video data and information describing a second sub-bitstream of the encoded video bitstream that includes one or more layers with no video data. The method further includes performing a bitstream conformance check on the first sub-bitstream or the second sub-bitstream based on whether at least one layer of the first sub-bitstream or the second sub-bitstream includes video data.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: March 27, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Ye-Kui Wang, Fnu Hendry, Adarsh Krishnan Ramasubramonian
  • Patent number: 9918094
    Abstract: In a general aspect, a method includes determining a tile position in a frame of a spherical video based on a view perspective, selecting a first portion of the frame of the spherical video as a first two dimensional tile based on the tile position, selecting a plurality of second two dimensional tiles from a second portion of the frame of the spherical video, the second portion of the frame surrounding the first portion of the frame and extending away from the first portion of the frame, encoding the first two dimensional tile using a first quality, encoding the plurality of second two dimensional tiles using at least one second quality, and transmitting a packet, as a streaming spherical video, the packet including the encoded first two dimensional tile and the plurality of encoded second two dimensional tiles.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: March 13, 2018
    Assignee: Google LLC
    Inventor: Debargha Mukherjee
  • Patent number: 9918082
    Abstract: A method for encoding a spherical video is disclosed. The method includes mapping a frame of the spherical video to a two dimensional representation based on a projection. Further, in a prediction process the method includes determine whether at least one block associated with a prediction scheme is on a boundary of the two dimensional representation, and upon determining the at least one block associated with the prediction scheme is on the boundary, select an adjacent end block as a block including at least one pixel for use during the prediction process, the adjacent end block being associated with two or more boundaries of the two dimensional representation.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: March 13, 2018
    Assignee: Google LLC
    Inventors: Adrian William Grange, Alexander Jay Converse
  • Patent number: 9918091
    Abstract: Techniques and systems are provided for encoding video data. For example, a method of encoding video data includes generating, by an encoder, an encoded video bitstream according to a first coding protocol. The encoded video bitstream includes one or more enhancement layers and a video parameter set defining parameters of the encoded video bitstream. The method further includes determining that a base layer is to be provided to a decoding device by an external source and is not to be provided as part of the encoded video bitstream. The method further includes assigning a minimum value to a syntax structure in the video parameter set when it is determined that the base layer is to be provided by the external source. The syntax structure defines profile, tier, and level parameters for the base layer.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: March 13, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Ye-Kui Wang, Fnu Hendry, Adarsh Krishnan Ramasubramonian