公开(公告)号：EP4287621A2

公开(公告)日：2023-12-06

申请号：EP23205217.5

申请日：2011-06-08

申请人： InterDigital VC Holdings, Inc.

发明人： LU, Xiaoan ,  SOLE, Joel ,  YIN, Peng ,  XU, Qian ,  ZHENG, Yunfei

IPC分类号： H04N19/61

摘要： An apparatus comprising a video decoder is provided, for decoding image data for at least a portion of a picture using a quantization parameter predictor for a current quantization parameter to be applied to the image data, the quantization parameter predictor being determined using multiple quantization parameters from previously decoded neighboring portions; and decoding a difference value representative of a difference between the current quantization parameter and the quantization parameter predictor, wherein said difference value is added to said quantization parameter predictor for use in decoding the image data, and wherein said quantization parameter predictor is determined as a mean of the quantization parameters of the previously decoded neighboring portion to the left and the previously decoded neighboring portion above the portion currently being decoded when these neighboring portions are available, and if at least one of said neighboring portions is not available, the quantization parameter predictor is determined as a mean of quantization parameters of available neighboring portions and a quantization parameter for a current slice, wherein said portion of a picture is one of a block and a coding unit.

公开(公告)号：EP3968642A1

公开(公告)日：2022-03-16

申请号：EP21200633.2

申请日：2008-03-20

申请人： InterDigital VC Holdings, Inc.

发明人： LUO, Jiancong ,  YIN, Peng ,  ZHU, Lihua

IPC分类号： H04N19/70 ,  H04N19/30 ,  H04N19/31

摘要： There are provided methods and apparatus for video usability information (VUI) for scalable video coding (SVC). An apparatus includes an encoder (100) for encoding video signal data into a bitstream. The encoder specifies video user information, excluding hypothetical reference decoder parameters, in the bitstream using a high level syntax element. The video user information corresponds to a set of interoperability points in the bitstream relating to scalable video coding (340, 355).

公开(公告)号：EP2145483B1

公开(公告)日：2020-10-21

申请号：EP08742877.7

申请日：2008-04-14

申请人： InterDigital VC Holdings, Inc.

发明人： LUO, Jiancong ,  ZHU, Lihua ,  YIN, Peng ,  PANDIT, Purvin, Bibhas

IPC分类号： H04N19/70 ,  H04N19/597 ,  H04N19/61

公开(公告)号：EP1952638B1

公开(公告)日：2020-05-13

申请号：EP06825326.9

申请日：2006-10-03

申请人： InterDigital VC Holdings, Inc.

发明人： YIN, Peng ,  BOYCE, Jill, MacDonald ,  PANDIT, Purvin, Bibhas

IPC分类号： H04N19/46 ,  H04N19/70 ,  H04N19/129 ,  H04N19/61 ,  H04N19/37 ,  H04N19/132 ,  H04N19/174 ,  H04N19/17 ,  H04N19/895

公开(公告)号：EP3579558A1

公开(公告)日：2019-12-11

申请号：EP19188086.3

申请日：2010-06-29

申请人： InterDigital VC Holdings, Inc.

发明人： LU, Xiaoan ,  SOLE ROJALS, Joel ,  XU, Qian ,  YIN, Peng ,  ZHENG, Yunfei

IPC分类号： H04N19/176 ,  H04N19/70 ,  H04N19/147 ,  H04N19/196 ,  H04N19/96 ,  H04N19/11 ,  H04N19/463 ,  H04N19/136

摘要： Methods and apparatus are provided for signaling intra prediction for large blocks for video encoders and decoders. An apparatus includes a video encoder (400) for encoding picture data for at least one large block in a picture by signaling intra prediction for the at least one large block. The intra prediction is signaled by selecting a basic coding unit size and assigning a single spatial intra partition type for the basic coding unit size. The single spatial intra partition type is selectable from among a plurality of spatial intra partition types. The at least one large block has a large block size greater than a block size of the basic coding unit. The intra prediction is hierarchical layer intra prediction and is performed for the at least one large block by at least one of splitting from the large block size to the basic coding unit size and merging from the basic coding unit size to the large block size.

公开(公告)号：EP1673944B1

公开(公告)日：2019-09-04

申请号：EP04794941.7

申请日：2004-10-12

申请人： InterDigital VC Holdings, Inc.

发明人： BOYCE, Jill, Mac Donald ,  GOMILA, Cristina ,  LLACH, Joan ,  TOURAPIS, Alexandros ,  COOPER, Jeffrey, Allen ,  YIN, Peng

IPC分类号： H04N19/85

公开(公告)号：EP3518547A1

公开(公告)日：2019-07-31

申请号：EP19155114.2

申请日：2008-03-20

申请人： Interdigital VC Holdings, Inc

发明人： LUO, Jiancong ,  ZHU, Lihua ,  YIN, Peng

IPC分类号： H04N19/70 ,  H04N19/30

摘要： There are provided methods and apparatus for video usability information (VUI) for scalable video coding (SVC). An apparatus includes an encoder (100) for encoding video signal data into a bitstream. The encoder specifies video user information, excluding hypothetical reference decoder parameters, in the bitstream using a high level syntax element. The video user information corresponds to a set of interoperability points in the bitstream relating to scalable video coding (340, 355).

公开(公告)号：EP3288268B1

公开(公告)日：2019-07-31

申请号：EP17192048.1

申请日：2010-06-29

申请人： InterDigital VC Holdings, Inc.

发明人： ZHENG, Yunfei ,  XU, Qian ,  LU, Xiaoan ,  YIN, Peng ,  SOLE ROJALS, Joel

IPC分类号： H04N19/176 ,  H04N19/70 ,  H04N19/147 ,  H04N19/196 ,  H04N19/96 ,  H04N19/11 ,  H04N19/463 ,  H04N19/136

公开(公告)号：EP3512202A1

公开(公告)日：2019-07-17

申请号：EP19161380.1

申请日：2009-04-23

申请人： Interdigital VC Holdings, Inc

发明人： TIAN, Dong ,  PANDIT, Purvin Bibhas ,  YIN, Peng

IPC分类号： H04N19/597 ,  H04N19/50 ,  H04N19/61 ,  H04N19/467

摘要： Various implementations are described. Several implementations relate to one or more encoding modes that use depth information to determine a corresponding reference block. According to a general aspect, a portion of a first-view image from a first view in a multiple-view system is encoded. The portion is all or part of the first-view image. It is determined that a portion of a second-view image from a second view in the multiple-view system corresponds to the portion of the first-view image. The determination is based on a second-view depth value providing depth information for the portion of the second-view image. The portion of the second-view image is encoded using information from the encoding of the portion of the first-view image.

公开(公告)号：EP3499883A2

公开(公告)日：2019-06-19

申请号：EP19155725.5

申请日：2011-05-13

申请人： Interdigital VC Holdings, Inc

发明人： XU, Qian ,  SOLE, Joel ,  YIN, Peng ,  ZHENG, Yunfei ,  LU, Xiaoan

IPC分类号： H04N19/105 ,  H04N19/176 ,  H04N19/147 ,  H04N19/46 ,  H04N19/134 ,  H04N19/61 ,  H04N19/593 ,  H04N19/12 ,  H04N19/132 ,  H04N19/157

CPC分类号： H04N19/157 ,  H04N19/105 ,  H04N19/12 ,  H04N19/132 ,  H04N19/134 ,  H04N19/147 ,  H04N19/176 ,  H04N19/46 ,  H04N19/593 ,  H04N19/61

摘要： Methods and apparatus are provided for intra coding a block having pixels assigned to groups. An apparatus includes a video encoder (500) for encoding a block in a picture using intra prediction by dividing pixels within the block into at least a first group and a second group and encoding the pixels in the first group prior to encoding the pixels in the second group. A prediction for at least one of the pixels within the second group is obtained by evaluating the pixels within the first group and the second group.