公开(公告)号：US20180027251A1

公开(公告)日：2018-01-25

申请号：US15114478

申请日：2015-12-17

申请人： Intel Corporation

发明人： MIN ZHI SUN ,  ZHAN LOU

IPC分类号： H04N19/44 ,  H04N19/436 ,  H04N19/513 ,  H04N19/65

CPC分类号： H04N19/44 ,  H04N19/436 ,  H04N19/513 ,  H04N19/65

摘要： The decode time of big frames may be reduced by starting big frame decoding much earlier than normal decoding order. In a multi-threaded decoder, decoding one frame can be divided into several stages and stages of different frames can run in parallel like a pipeline. The first stage may be the token parser which is the most time consuming among all the stages because it is sensitive to bitstream size. If one or more stages of big frame decoding can be done much earlier than normal decoding order, the decode time spent exclusively on the big frame (not including the time shared with other frame decoding) may be much less in some embodiments. In this way, big frame decoding time may be reduced and in addition, depending on how big the big frame is, the decoder control can control how early to start decoding, so that frame drops caused by big frames can be reduced or eliminated.

公开(公告)号：US20180020222A1

公开(公告)日：2018-01-18

申请号：US15642586

申请日：2017-07-06

申请人： MEDIATEK INC.

发明人： Tung-Hsing WU ,  Chung-Hua TSAI ,  Wei-Cing LI ,  Lien-Fei CHEN ,  Li-Heng CHEN ,  Han-Liang CHOU ,  Ting-An LIN ,  Yi-Hsin HUANG

IPC分类号： H04N19/152 ,  H04N19/85 ,  H04N19/423

CPC分类号： H04N19/152 ,  H04N19/174 ,  H04N19/423 ,  H04N19/436 ,  H04N19/85 ,  H04N19/96

摘要： An apparatus and method for video encoding with low latency is disclosed. The apparatus comprises a video encoding module to encode input video data into compressed video data, one or more processing modules to provide the input video data to the video encoding module or to further process the compressed video data from the video encoding module, and one data memory associated with each processing module to store or to provide shared data between the video encoding module and each processing module. The encoding module and each processing module are configured to manage data access of one data memory by coordinating one of the video encoding module and one processing module to receive target shared data from one data memory after the target shared data from another of the video encoding module and one processing module are ready in said one data memory.

公开(公告)号：US09866855B2

公开(公告)日：2018-01-09

申请号：US14913504

申请日：2014-08-28

申请人： NEC Corporation

发明人： Seiya Shibata

IPC分类号： H04N19/42 ,  H04N19/436 ,  H04N19/115 ,  H04N19/503 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

CPC分类号： H04N19/436 ,  H04N19/115 ,  H04N19/42 ,  H04N19/503 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

摘要： A processing control device includes: a process completion map 21 which is a map corresponding to processing units of respective sizes, and in which, when process corresponding thereto is completed, setting indicating completion of the process is performed; a dependence dissolution map 23 which is a map corresponding to the processing units of the respective sizes and in which information indicating that the dependence of each process disappears is set; a controller 10 which, when the process is completed, sets information indicating that the process is completed in an area corresponding to the process within a small size of map in the process completion map 21; and a reflecting circuit 22 which reflects the information set in the process completion map 21 in the dependence dissolution map 23.

公开(公告)号：US09852522B2

公开(公告)日：2017-12-26

申请号：US14637737

申请日：2015-03-04

申请人： Sony Computer Entertainment Inc.

发明人： Jin Satoh ,  Takehiro Tominaga ,  Tomochika Kanakogi

IPC分类号： G06T11/00 ,  H04N19/91 ,  H04N19/44 ,  H04N19/436 ,  H04N19/93 ,  H04N19/625 ,  G09G5/36

CPC分类号： G06T11/001 ,  G09G5/363 ,  G09G2340/02 ,  H04N19/436 ,  H04N19/44 ,  H04N19/625 ,  H04N19/91 ,  H04N19/93

摘要： There is provided a graphics processing system that allows decompression of a compressed texture with high efficiency. The graphics processing system includes: a main memory; and a graphics processing unit, in which the graphics processing unit includes a run length decoding section adapted to run-length-decode a compressed texture, and a reciprocal spatial frequency conversion section adapted to restore the texture by performing reciprocal spatial frequency conversion on the run-length-decoded texture, and the main memory includes a texture pool adapted to partially cache the restored texture.

公开(公告)号：US09848196B2

公开(公告)日：2017-12-19

申请号：US15008785

申请日：2016-01-28

申请人： DOLBY INTERNATIONAL AB

发明人： Felix Henry ,  Stephane Pateux ,  Gordon Clare

IPC分类号： H04N7/12 ,  H04N19/176 ,  H04N19/196 ,  H04N19/50 ,  H04N19/503 ,  H04N19/51 ,  H04N19/13 ,  H04N19/61 ,  H04N19/593 ,  H04N19/124 ,  H04N19/91 ,  H04N19/137 ,  H04N19/174 ,  H04N19/44 ,  H04N19/436 ,  H04N19/625 ,  H04N19/136 ,  H04N19/70

CPC分类号： H04N19/119 ,  H04N19/124 ,  H04N19/13 ,  H04N19/136 ,  H04N19/137 ,  H04N19/174 ,  H04N19/176 ,  H04N19/196 ,  H04N19/197 ,  H04N19/436 ,  H04N19/44 ,  H04N19/50 ,  H04N19/503 ,  H04N19/51 ,  H04N19/593 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70 ,  H04N19/91

摘要： A method for coding includes; segmenting an image into blocks; grouping blocks into a number of subsets; coding, using an entropy coding module, each subset, by associating digital information with symbols of each block of a subset, including, for the first block of the image, initializing state variables of the coding module; and generating a data sub-stream representative of at least one of the coded subsets of blocks. Where a current block is the first block to be coded of a subset, symbol occurrence probabilities for the first current block are determined based on those for a coded and decoded predetermined block of at least one other subset. Where the current block is the last coded block of the subset: writing, in the sub-stream representative of the subset, the entire the digital information associated with the symbols during coding of the blocks of the subset, and implementing the initializing sub-step.

公开(公告)号：US20170359597A1

公开(公告)日：2017-12-14

申请号：US15664783

申请日：2017-07-31

申请人： Texas Instruments Incorporated

发明人： Madhukar Budagavi

IPC分类号： H04N19/593 ,  H04N19/186 ,  H04N19/86 ,  H04N19/436 ,  H04N19/107 ,  H04N19/80 ,  H04N19/44 ,  H04N19/11 ,  H04N19/117 ,  H04N19/176

CPC分类号： H04N19/593 ,  H04N19/107 ,  H04N19/11 ,  H04N19/117 ,  H04N19/176 ,  H04N19/186 ,  H04N19/436 ,  H04N19/44 ,  H04N19/80 ,  H04N19/86

摘要： A method for luma-based chroma intra-prediction in a video encoder or a video decoder is provided that includes filtering reconstructed neighboring samples of a reconstructed down sampled luma block, computing parameters a and fl of a linear model using the filtered, reconstructed neighboring samples of the reconstructed down sampled luma block and reconstructed neighboring samples of a corresponding chroma block, wherein the linear model is PredC[x,y]=α·RecL′[x,y]+β, wherein x and y are sample coordinates, PredC is predicted chroma samples, and RecL′ is samples of the reconstructed down sampled luma block, and computing samples of a predicted chroma block from corresponding samples of the reconstructed down sampled luma block using the linear model and the parameters.

公开(公告)号：US20170359591A1

公开(公告)日：2017-12-14

申请号：US15526847

申请日：2015-11-16

申请人： LG ELECTRONICS INC.

发明人： Amir SAID

IPC分类号： H04N19/436 ,  H04N19/44 ,  H04N19/13 ,  H04N19/176

CPC分类号： H04N19/436 ,  H04N19/13 ,  H04N19/176 ,  H04N19/44

摘要： Disclosed is a method for encoding a video signal using parallel implementations, including generating data symbols to be encoded, encoding 1st data symbols being in a base segment, copying 2nd data symbols being in another segment to a buffer, and encoding in parallel the 2nd data symbols being in the another segment.

公开(公告)号：US09843813B2

公开(公告)日：2017-12-12

申请号：US15050061

申请日：2016-02-22

申请人： Apple Inc.

发明人： Guy Cote ,  Craig M. Okruhlica

IPC分类号： H04N19/40 ,  H04N19/186 ,  H04N19/42 ,  H04N19/159 ,  H04N19/176 ,  H04N19/107 ,  H04N19/436 ,  H04N19/13 ,  H04N19/182 ,  H04N19/423 ,  H04N19/52 ,  H04N19/593 ,  H04N19/86 ,  H04N19/96

CPC分类号： H04N19/186 ,  H04N19/107 ,  H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/40 ,  H04N19/423 ,  H04N19/436 ,  H04N19/439 ,  H04N19/52 ,  H04N19/593 ,  H04N19/86 ,  H04N19/96

摘要： A block processing pipeline in which macroblocks are input to and processed according to row groups so that adjacent macroblocks on a row are not concurrently at adjacent stages of the pipeline. The input method may allow chroma processing to be postponed until after luma processing. One or more upstream stages of the pipeline may process luma elements of each macroblock to generate luma results such as a best mode for processing the luma elements. Luma results may be provided to one or more downstream stages of the pipeline that process chroma elements of each macroblock. The luma results may be used to determine processing of the chroma elements. For example, if the best mode for luma is an intra-frame mode, then a chroma processing stage may determine a best intra-frame mode for chroma and reconstruct the chroma elements according to the best chroma intra-frame mode.

公开(公告)号：US09838703B2

公开(公告)日：2017-12-05

申请号：US14691119

申请日：2015-04-20

申请人： Corel Software, LLC

发明人： Ioannis Katsavounidis ,  Yu-Nien Chien ,  Chun-Huan Chuang ,  Chung-Tao Chu ,  Te-Chien Chen

IPC分类号： H04N19/436 ,  H04N19/44 ,  H04N19/577

CPC分类号： H04N19/436 ,  H04N19/44 ,  H04N19/577

摘要： A method and an apparatus for performing multi-threaded video decoding are disclosed. The method takes use of a multi-threaded scheme to process an encoded picture stream on a picture by picture basis. In the method, multiple threads are used for performing video decoding at the same time, such as one thread for the operation of parsing input bits into syntax elements of one picture implemented by the first thread, another thread for the operation of decoding the parsed syntax elements of another picture into pixel values implemented by the second thread, and the other threads for the operations of the non-reference picture, such as bidirectional predictive picture, including parsing input bits into syntax elements and the subsequent operation of decoding the parsed syntax elements into pixel values. Therefore, the decoding speed is substantially increased, and the decoding efficiency is enhanced.

公开(公告)号：US20170339423A1

公开(公告)日：2017-11-23

申请号：US15595933

申请日：2017-05-15

申请人： MEDIATEK INC.

发明人： Li-Heng Chen ,  Tung-Hsing Wu ,  Han-Liang Chou

IPC分类号： H04N19/50 ,  H04N19/70 ,  H04N19/436 ,  H04N19/124 ,  H04N19/103 ,  H04N19/184 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186

CPC分类号： H04N19/176 ,  H04N19/103 ,  H04N19/147 ,  H04N19/436

摘要： One exemplary image encoding method for encoding an image includes following steps: calculating a mean value of each color channel of a plurality of reconstructed pixels; determining a first predictor used by a first candidate coding mode of a current coding block according to mean values of color channels of the reconstructed pixels; determining a second predictor used by a second candidate coding mode of the current coding block according to the mean values of the color channels of the reconstructed pixels, wherein determining the first predictor and determining the second predictor are performed in a parallel manner; determining a coding mode selected from candidate coding modes including at least the first candidate coding mode and the second candidate coding mode; and encoding the current coding block into a part of a bitstream according to at least the determined coding mode.