公开(公告)号：US11509894B2

公开(公告)日：2022-11-22

申请号：US13811581

申请日：2011-07-05

Applicant: Jinhan Song ,  Jeongyeon Lim ,  Haekwang Kim ,  Joohee Moon ,  Yunglyul Lee ,  Jongki Han ,  Byeungwoo Jeon

Inventor： Jinhan Song ,  Jeongyeon Lim ,  Haekwang Kim ,  Joohee Moon ,  Yunglyul Lee ,  Jongki Han ,  Byeungwoo Jeon

IPC: H04N19/63 ,  H04N19/70 ,  H04N19/91 ,  H04N19/119 ,  H04N19/124 ,  H04N19/129 ,  H04N19/182 ,  H04N19/436 ,  H04N19/625

Abstract: The present disclosure provides a method and apparatus for subband-coding a frequency conversion unit and a video encoding/decoding method a video encoding/decoding apparatus using the same. The method and the apparatus for subband-coding the frequency conversion unit include generating an encoding stream by splitting the frequency conversion unit into one or more frequency domains, generating frequency domain encoding information according to whether there is a non-zero frequency coefficient in each frequency domain, scanning the frequency coefficient of each frequency domain to generate a frequency domain frequency coefficient stream, and binarizing and encoding the frequency domain encoding information and the scanned frequency domain frequency coefficient stream.

公开(公告)号：US20220353513A1

公开(公告)日：2022-11-03

申请号：US17867920

申请日：2022-07-19

Applicant: GOOGLE LLC

Inventor： Ronald Sebastiaan Bultje ,  Sami Aleksi Pietilä

IPC: H04N19/152 ,  H04N19/174 ,  H04N19/436 ,  H04N19/119

Abstract: Video coding using tiling may include encoding a current frame by identifying a tile-width for encoding a current tile of the current frame, the tile-width indicating a cardinality of horizontally adjacent blocks in the current tile, identifying a tile-height for encoding the current tile of the current frame, the tile-height indicating a cardinality of vertically adjacent block in the current tile, and generating an encoded tile by encoding the current tile, such that a row of the current tile includes tile-width horizontally adjacent blocks from the plurality of blocks, and a column of the current tile includes tile-height vertically adjacent blocks from the plurality of blocks. Encoding the current frame may include outputting the encoded tile, wherein outputting the encoded tile includes including an encoded-tile size in an output bitstream, the encoded-tile size indicating a cardinality of bytes for including the encoded tile in the output bitstream.

公开(公告)号：US11451806B2

公开(公告)日：2022-09-20

申请号：US16909621

申请日：2020-06-23

Applicant: Comcast Cable Communications, LLC

Inventor： Yasser F. Syed ,  Donald J. Wester

IPC: H04N19/436 ,  H04L29/06 ,  H04N19/46 ,  H04N21/2343 ,  H04N21/2365 ,  H04L65/60

Abstract: An example method can comprise receiving an encoding parameter associated with a first content transmission. The encoding parameter can indicate a level of complexity to encode the first content transmission. The method can comprise selecting, based on the encoding parameter, a second content transmission. The second content transmission can be encoded at a second bit rate that is different than a first bit rate of the first content transmission. The method can also comprise generating a third content transmission. The third content transmission can comprise the second content transmission.

公开(公告)号：US20220264130A1

公开(公告)日：2022-08-18

申请号：US17733678

申请日：2022-04-29

Applicant: Coherent Logix, Incorporated

Inventor： Michael W. Bruns ,  Martin A. Hunt ,  Manjunath H. Siddaiah ,  John C. Sievers

IPC: H04N19/436 ,  G06F9/38 ,  H04N19/176 ,  H04N19/146 ,  H04N19/107 ,  H04N19/147

Abstract: Methods and devices for a parallel multi-processor encoder system for encoding video data. The video data comprises a sequence of frames, wherein each frame comprises a plurality of blocks of pixels in sequential rows. For each frame, the system divides the plurality of blocks into a plurality of subsets of blocks, wherein each subset of blocks is allocated to a respective processor of the parallel multi-processor system. Each respective processor of the parallel multi-processor system may sequentially encode rows of the subset of blocks allocated to the respective processor and sequentially transmit each encoded row of blocks as a bit stream to a decoder on a channel. For each row, the respective encoded row of blocks is transmitted to the decoder for each processor prior to transmission of the next sequential respective encoded row of blocks for any processor. Additionally, a similar parallel multi-processor decoder system is described.

公开(公告)号：US20220264127A1

公开(公告)日：2022-08-18

申请号：US17689622

申请日：2022-03-08

Applicant: GE Video Compression, LLC

Inventor： Thomas SCHIERL ,  Valeri GEORGE ,  Anastasia HENKEL ,  Detlev MARPE ,  Karsten GRÜNEBERG ,  Robert SKUPIN

IPC: H04N19/169 ,  H04N19/46 ,  H04N19/91 ,  H04N19/70 ,  H04N19/463 ,  H04N19/174 ,  H04N19/436 ,  H04N19/13

Abstract: Parallel processing concepts such as wavefront parallel processing, are realized with a reduced end-to-end delay by giving up the usual slice concept according to which slices are either coded/decoded completely independent from areas of the picture outside of the respective slice, or at least independent from areas outside the respective slice as far as the entropy coding is concerned, namely in favor of slices of different modes, namely ones called dependent slices which allow for interdependencies across slice boundaries, and others which do not, called normal slices, for example. Combined with the aspect or not, WPP processing concept is made more efficiently by using the slices' start syntax portions to locate WPP entry points.

公开(公告)号：US20220248053A1

公开(公告)日：2022-08-04

申请号：US17724250

申请日：2022-04-19

Applicant: Tencent America LLC

Inventor： Xiang ZHANG ,  Wen GAO ,  Shan LIU

IPC: H04N19/597 ,  H04N19/169 ,  H04N19/96 ,  H04N19/46 ,  H04N19/70 ,  H04N19/436

Abstract: Aspects of the disclosure provide methods, apparatuses, and a non-transitory computer-readable medium for point cloud coding. In a method, when parallel octree coding is enabled for occupancy codes of nodes in an octree partitioning structure of the point cloud, syntax information of the point cloud is decoded from a coded bitstream and a bitstream offset of an octree depth is determined. The syntax information indicates a bitstream length of the octree depth at which the parallel octree coding is enabled. Parallel decoding is performed on the occupancy codes of the nodes of the octree depth based on the bitstream offset and the bitstream length of the octree depth. Further, the point cloud is reconstructed based on the occupancy codes of the nodes.

公开(公告)号：US11405627B2

公开(公告)日：2022-08-02

申请号：US17062980

申请日：2020-10-05

Applicant: Oath Inc.

Inventor： Jian Zhou ,  Congxia Dai ,  Heri Zhao ,  Zhonghua Ma ,  Xumin Wu ,  Michael Chang-Ping Chen ,  Sagar Dattatraya Bhandare

IPC: H04N19/436 ,  H04N19/167 ,  H04N19/14 ,  H04N19/115 ,  H04N19/127 ,  H04N19/172 ,  H04N19/132 ,  H04N19/15 ,  H04N19/192 ,  H04N19/147

Abstract: One or more computing devices, systems, and/or methods for video encoding are provided. For example, a video file may be segmented into at least a first portion and a second portion. The first portion may be analyzed to determine that the first portion is associated with a first level of complexity, and the second portion may be analyzed to determine that the second portion is associated with a second level of complexity. A first bitrate associated with the first level of complexity may be determined, and a second bitrate associated with the second level of complexity may be determined. The first portion may be encoded at the first bitrate to generate a first encoded portion, and the second portion may be encoded at the second bitrate to generate a second encoded portion. The first encoded portion and the second encoded portion may be assembled to generate an optimized video file.

公开(公告)号：US20220232238A1

公开(公告)日：2022-07-21

申请号：US17716660

申请日：2022-04-08

Applicant: HFI INNOVATION INC.

Inventor： Chen-Yen LAI ,  Tzu-Der CHUANG ,  Ching-Yeh CHEN ,  Chih-Wei HSU

IPC: H04N19/46 ,  H04N19/172 ,  H04N19/436 ,  H04N19/139 ,  H04N19/107 ,  H04N19/70

Abstract: A method of video decoding at a decoder can include receiving a bitstream including encoded data of a picture, decoding a plurality of coding units (CUs) in the picture based on motion information stored in a history-based motion vector prediction (HMVP) table, resetting the HMVP table for every N CTU rows. The method also provides updating the HMVP table with the motion information of the last Q of the plurality of CUs.

公开(公告)号：US20220217379A1

公开(公告)日：2022-07-07

申请号：US17704454

申请日：2022-03-25

Applicant: V-NOVA INTERNATIONAL LIMITED

Inventor： Ivan MAKEEV ,  Balázs KESZTHELYI ,  Stergios POULARAKIS ,  Michele SANNA ,  Robert ETTINGER

IPC: H04N19/436 ,  H04N19/119 ,  H04N19/167 ,  H04N19/176 ,  H04N19/30 ,  H04N19/46 ,  H04N19/96 ,  H04N19/129 ,  H04N19/44 ,  H04N19/182 ,  H04N19/91

Abstract: There may be provided a method of decoding a received set of encoded data representing information that has been compressed, wherein the encoded data set is divided into a hierarchy of subsets, the method comprising: decoding at least one first subset to derive a respective set of attribute metadata elements; separately decoding a plurality of second subsets comprising data elements, wherein each second subset describes a region of the information that has been compressed; and, reconstructing the information that has been compressed from the data elements, wherein the region of the information that has been compressed is identified from the attribute metadata elements.

公开(公告)号：US11375210B2

公开(公告)日：2022-06-28

申请号：US16880199

申请日：2020-05-21

Applicant: Sun Patent Trust

Inventor： Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu ,  Kengo Terada

IPC: H04N19/174 ,  H04N19/70 ,  H04N19/117 ,  H04N19/463 ,  H04N19/127 ,  H04N19/44 ,  H04N19/436

Abstract: An image encoding method including: a constraint information generating step of generating tile constraint information indicating whether or not there is a constraint in filtering on boundaries between adjacent tiles among a plurality of tiles obtained by dividing a picture, and storing the tile constraint information into a sequence parameter set; and a filter information generating step of generating, for each of the boundaries, one of a plurality of filter information items respectively indicating whether or not filtering is executed on the boundaries, and storing the plurality of filter information items into a plurality of picture parameter sets, wherein, in the filter information generating step, the plurality of filter information items which indicate identical content are generated when the tile constraint information indicates that there is the constraint in the filtering.