公开(公告)号：US12034937B2

公开(公告)日：2024-07-09

申请号：US18103409

申请日：2023-01-30

申请人： Velos Media, LLC

发明人： Yukinobu Yasugi

IPC分类号： H04N11/02 ,  H04N19/105 ,  H04N19/11 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/50 ,  H04N19/593

CPC分类号： H04N19/159 ,  H04N19/105 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/50 ,  H04N19/593

摘要： A coding device and a decoding device are configured to include an estimated prediction mode deciding section (122a) including: a reference block selecting section (1223a) for selecting a reference block for use in estimating an intra-prediction mode for a subject block; an estimating number deciding section (1222a) for deciding an estimating number of estimated values to be estimated for the intra-prediction mode; and an estimated prediction mode deriving section (1221a) for estimating, based on a reference block, the estimating number of estimated values of the prediction mode.

公开(公告)号：US11973950B2

公开(公告)日：2024-04-30

申请号：US18124198

申请日：2023-03-21

申请人： Velos Media, LLC

发明人： Kiran Misra ,  Christopher Segall

IPC分类号： H04N19/13 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/436 ,  H04N19/44 ,  H04N19/46 ,  H04N19/577 ,  H04N19/70 ,  H04N19/157

CPC分类号： H04N19/13 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/436 ,  H04N19/44 ,  H04N19/46 ,  H04N19/577 ,  H04N19/70 ,  H04N19/157

摘要： Technique for initialization of encoders and decoders. In some cases, the decoder receives a slice and identifies if the slice is either a forward predicted B-slice or a backward predicted B-slice, and not both a forward and backward predicted B-slice, and based upon this identification initializes, using a P-slice technique, a context associated with the slice.

公开(公告)号：US20230179775A1

公开(公告)日：2023-06-08

申请号：US18103409

申请日：2023-01-30

申请人： Velos Media, LLC

发明人： Yukinobu Yasugi

IPC分类号： H04N19/159 ,  H04N19/176 ,  H04N19/147 ,  H04N19/196 ,  H04N19/11 ,  H04N19/463 ,  H04N19/593 ,  H04N19/50 ,  H04N19/105 ,  H04N19/46

CPC分类号： H04N19/159 ,  H04N19/176 ,  H04N19/147 ,  H04N19/196 ,  H04N19/11 ,  H04N19/463 ,  H04N19/593 ,  H04N19/50 ,  H04N19/105 ,  H04N19/46

摘要： A coding device and a decoding device are configured to include an estimated prediction mode deciding section (122a) including: a reference block selecting section (1223a) for selecting a reference block for use in estimating an intra-prediction mode for a subject block; an estimating number deciding section (1222a) for deciding an estimating number of estimated values to be estimated for the intra-prediction mode; and an estimated prediction mode deriving section (1221a) for estimating, based on a reference block, the estimating number of estimated values of the prediction mode.

公开(公告)号：US11582446B2

公开(公告)日：2023-02-14

申请号：US17565407

申请日：2021-12-29

申请人： Velos Media, LLC

发明人： Sachin G. Deshpande ,  Christopher A. Segall

IPC分类号： H04N19/105 ,  H04N19/159 ,  H04N19/70 ,  H04N19/46 ,  H04N19/573 ,  H04N19/58 ,  H04N19/503 ,  H04N19/172 ,  H04N19/44 ,  H04N19/577

摘要： A system for decoding a video bitstream includes receiving a reference picture set associated with a frame including a set of reference picture identifiers. The reference picture set identifies one or more reference pictures to be used for inter-prediction of the frame based upon its associated least significant bits of a picture order count based upon the reference picture identifiers. The one or more reference pictures is a second or greater previous frame to the frame having the matching reference picture identifier.

公开(公告)号：US11196996B2

公开(公告)日：2021-12-07

申请号：US16696958

申请日：2019-11-26

申请人： Velos Media, LLC

发明人： Junichi Tanaka

IPC分类号： H04N19/124 ,  H04N19/70 ,  H04N19/463 ,  H04N19/174 ,  H04N19/103 ,  H04N19/126 ,  H04N19/157 ,  H04N19/31 ,  H04N19/50 ,  H04N19/44

摘要： An image processing device including an acquiring section configured to acquire quantization matrix parameters from an encoded stream in which the quantization matrix parameters defining a quantization matrix are set within a parameter set which is different from a sequence parameter set and a picture parameter set, a setting section configured to set, based on the quantization matrix parameters acquired by the acquiring section, a quantization matrix which is used when inversely quantizing data decoded from the encoded stream, and an inverse quantization section configured to inversely quantize the data decoded from the encoded stream using the quantization matrix set by the setting section.

公开(公告)号：US11109040B2

公开(公告)日：2021-08-31

申请号：US16835172

申请日：2020-03-30

申请人： Velos Media, LLC

发明人： Yukinobu Yasugi

IPC分类号： H04N11/02 ,  H04N19/159 ,  H04N19/176 ,  H04N19/147 ,  H04N19/196 ,  H04N19/11 ,  H04N19/463 ,  H04N19/593 ,  H04N19/50 ,  H04N19/105 ,  H04N19/46

摘要： A coding device and a decoding device are configured to include an estimated prediction mode deciding section (122a) including: a reference block selecting section (1223a) for selecting a reference block for use in estimating an intra-prediction mode for a subject block; an estimating number deciding section (1222a) for deciding an estimating number of estimated values to be estimated for the intra-prediction mode; and an estimated prediction mode deriving section (1221a) for estimating, based on a reference block, the estimating number of estimated values of the prediction mode.

公开(公告)号：US11039171B2

公开(公告)日：2021-06-15

申请号：US16251158

申请日：2019-01-18

申请人： Velos Media, LLC

发明人： Peisong Chen ,  Marta Karczewicz ,  Yan Ye

IPC分类号： H04J99/00 ,  H04N19/70 ,  H04N19/176 ,  H04N19/147 ,  H04N19/46 ,  H04N19/61 ,  H04N19/593 ,  H04N19/103 ,  H04N19/96 ,  H04N19/44

摘要： Technology is described for decoding a video block. A block-type syntax information is received which indicates a size of a video block in a video frame, wherein a maximum size of the video blocks is 32×32 or 64×64. The video block having the size indicated by the block-type syntax information is received. The video block is partitioned into partitions, and at least one of the partitions is encoded with a first encoding mode and at least one other of the partitions is encoded with a second encoding mode which is different from the first encoding mode. Syntax information is received for the partitions of the video block and for the first encoding mode and the second encoding mode. Motion vector information is received for one or more of the partitions. The video block is decoded based on at least the block-type syntax information and the motion vector information.

公开(公告)号：US20210160534A1

公开(公告)日：2021-05-27

申请号：US17170744

申请日：2021-02-08

申请人： Velos Media, LLC

发明人： Shuo LU ,  Kazushi SATO

IPC分类号： H04N19/52 ,  H04N19/70 ,  H04N19/58 ,  H04N19/177 ,  H04N19/50

摘要： The present technology relates to an encoding device and an encoding method capable of reducing the amount of information relating to information that specifies a reference image.
An encoding unit generates a predicted image using a reference image. A transmission unit transmits inter_ref_pic_set_prediction_flag representing whether reference image specifying information specifying the reference image of a prior image that is an image prior to a current coding image in coding order is used as the reference image specifying information of the current coding image in a case where the current coding image is an image other than a first image of a GOP (Group of Picture). The present technology, for example, can be applied to an encoding device of an HEVC (High Efficiency Video Coding) system.

公开(公告)号：US20210152829A1

公开(公告)日：2021-05-20

申请号：US17164766

申请日：2021-02-01

申请人： Velos Media, LLC

发明人： Nguyen Nguyen ,  Tianying Ji ,  Dake He

IPC分类号： H04N19/122 ,  H04N19/70 ,  H04N19/61 ,  H04N19/91 ,  H04N19/132 ,  H04N19/136 ,  H04N19/18 ,  H04N19/157 ,  H04N19/196

摘要： Methods of encoding and decoding for video data are described in which multi-level significance maps are used in the encoding and decoding processes. The significant-coefficient flags that form the significance map are grouped into contiguous groups, and a significant-coefficient-group flag signifies for each group whether that group contains no non-zero significant-coefficient flags. If there are no non-zero significant-coefficient flags in the group, then the significant-coefficient-group flag is set to zero. The set of significant-coefficient-group flags is encoded in the bitstream. Any significant-coefficient flags that fall within a group that has a significant-coefficient-group flag that is non-zero are encoded in the bitstream, whereas significant-coefficient flags that fall within a group that has a significant-coefficient-group flag that is zero are not encoded in the bitstream.

公开(公告)号：US20210152817A1

公开(公告)日：2021-05-20

申请号：US17164757

申请日：2021-02-01

申请人： Velos Media, LLC

发明人： Sachin G. Deshpande ,  Christopher A. Segall

IPC分类号： H04N19/105 ,  H04N19/70 ,  H04N19/46 ,  H04N19/573 ,  H04N19/58 ,  H04N19/503 ,  H04N19/159 ,  H04N19/172 ,  H04N19/44 ,  H04N19/577

摘要： A system for decoding a video bitstream includes receiving a reference picture set associated with a frame including a set of reference picture identifiers. The reference picture set identifies one or more reference pictures to be used for inter-prediction of the frame based upon its associated least significant bits of a picture order count based upon the reference picture identifiers. The one or more reference pictures is a second or greater previous frame to the frame having the matching reference picture identifier.