公开(公告)号：US20240430433A1

公开(公告)日：2024-12-26

申请号：US18830023

申请日：2024-09-10

Applicant: InterDigital VC Holdings, Inc.

Inventor： Yunfei Zheng ,  Qian Xu ,  Xiaoan Lu ,  Peng Yin ,  Joel Sole Rojals ,  Adeel Abbas

IPC: H04N19/136 ,  H04N19/11 ,  H04N19/147 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593 ,  H04N19/70 ,  H04N19/96

Abstract: Methods and apparatus are provided for signaling intra prediction for large blocks for video encoders and decoders. An apparatus includes a video encoder 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 basic coding unit size. The intra prediction may be 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.

公开(公告)号：US11936876B2

公开(公告)日：2024-03-19

申请号：US17351649

申请日：2021-06-18

Applicant: InterDigital VC Holdings, Inc.

Inventor： Yunfei Zheng ,  Qian Xu ,  Xiaoan Lu ,  Peng Yin ,  Joel Sole Rojals ,  Adeel Abbas

IPC: H04N19/136 ,  H04N19/11 ,  H04N19/147 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593 ,  H04N19/70 ,  H04N19/96

CPC classification number: H04N19/136 ,  H04N19/11 ,  H04N19/147 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593 ,  H04N19/70 ,  H04N19/96

Abstract: Methods and apparatus are provided for signaling intra prediction for large blocks for video encoders and decoders. 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：US10708590B2

公开(公告)日：2020-07-07

申请号：US15652598

申请日：2017-07-18

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Joel Sole ,  Yunfei Zheng ,  Qian Xu ,  Peng Yin ,  Xiaoan Lu

IPC: H04N19/00 ,  H04N19/117 ,  H04N19/147 ,  H04N19/46 ,  H04N19/196 ,  H04N19/174 ,  H04N19/82 ,  H04N19/86

Abstract: Methods and apparatus are provided for collaborative partition coding for region based filters. An apparatus includes a video encoder (100) for encoding image data for a plurality of regions in a picture. The video encoder (100) includes multiple filters for filtering the image data based on region partition information for the plurality of regions. The region partition information for the plurality of regions is shared between the multiple filters.

公开(公告)号：US12022108B2

公开(公告)日：2024-06-25

申请号：US17967154

申请日：2022-10-17

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Liwei Guo ,  Peng Yin ,  Yunfei Zheng ,  Joel Sole ,  Qian Xu ,  Xiaoan Lu

IPC: H04N19/52 ,  H04N19/139 ,  H04N19/44 ,  H04N19/567 ,  H04N19/70

CPC classification number: H04N19/52 ,  H04N19/139 ,  H04N19/44 ,  H04N19/567 ,  H04N19/70

Abstract: Methods and apparatus are provided for adaptive motion vector candidate ordering for video encoding and decoding. An apparatus includes a video encoder (100) for encoding a block in a picture by selecting an order of motion vector predictor candidates for the block responsive to a characteristic available at both the video encoder and a corresponding decoder. The characteristic excludes a mode in which the block is partitioned.

公开(公告)号：US11553192B2

公开(公告)日：2023-01-10

申请号：US17141309

申请日：2021-01-05

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Joel Sole ,  Peng Yin ,  Yunfei Zheng ,  Xiaoan Lu ,  Qian Xu

IPC: H04N19/184 ,  H04N19/159 ,  H04N19/70 ,  H04N19/147 ,  H04N19/172 ,  H04N19/46 ,  H04N19/61 ,  H04N19/91 ,  H04N19/64 ,  H04N19/117 ,  H04N19/124 ,  H04N19/139 ,  H04N19/176 ,  H04N19/625

Abstract: Methods and apparatus are provided for encoding and decoding binary sets using adaptive tree selection. In one exemplary encoding method embodiment, picture data is encoded for a block in a picture; in which one of a plurality of trees structures is selected to code a binary set of data for indicating coefficient significance for the block. In another exemplary encoding method embodiment, picture data is encoded for a block in a picture, in which one or more trees are used to encode a binary set of data for indicating coefficient significance for the block, the one or more trees each having a plurality of nodes, at least one of the nodes of the one or more trees being modified responsive to at least one parameter.

公开(公告)号：US10448028B2

公开(公告)日：2019-10-15

申请号：US16018250

申请日：2018-06-26

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Joel Sole ,  Peng Yin ,  Yunfei Zheng ,  Xiaoan Lu ,  Qian Xu

IPC: H04N19/184 ,  H04N19/159 ,  H04N19/70 ,  H04N19/147 ,  H04N19/172 ,  H04N19/46 ,  H04N19/64 ,  H04N19/61 ,  H04N19/91 ,  H04N19/117 ,  H04N19/124 ,  H04N19/139 ,  H04N19/176 ,  H04N19/625

Abstract: Methods and apparatus are provided for encoding and decoding binary sets using adaptive tree selection. In one exemplary encoding method embodiment, picture data is encoded for a block in a picture; in which one of a plurality of trees structures is selected to code a binary set of data for indicating coefficient significance for the block. In another exemplary encoding method embodiment, picture data is encoded for a block in a picture, in which one or more trees are used to encode a binary set of data for indicating coefficient significance for the block, the one or more trees each having a plurality of nodes, at least one of the nodes of the one or more trees being modified responsive to at least one parameter.

公开(公告)号：US10334247B2

公开(公告)日：2019-06-25

申请号：US15654823

申请日：2017-07-20

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Xiaoan Lu ,  Joel Sole ,  Peng Yin ,  Qian Xu ,  Yunfei Zheng

IPC: H04N19/124 ,  G06K9/36 ,  G06K9/48 ,  H04N19/196 ,  H04N19/51 ,  H04N19/61 ,  H04N19/593 ,  H04N19/126 ,  H04N19/174 ,  H04N19/513 ,  H04N19/176 ,  H04N19/157 ,  H04N19/52 ,  H04N19/139

Abstract: Methods and apparatus are provided for determining quantization parameter predictors from a plurality of neighboring quantization parameters. An apparatus includes an encoder for encoding 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 is determined using multiple quantization parameters from previously coded neighboring portions. A difference between the current quantization parameter and the quantization parameter predictor is encoded for signaling to a corresponding decoder.

公开(公告)号：US11381818B2

公开(公告)日：2022-07-05

申请号：US16918069

申请日：2020-07-01

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Xiaoan Lu ,  Joel Sole ,  Peng Yin ,  Qian Xu ,  Yunfei Zheng

IPC: G06V10/20 ,  G06V10/46 ,  H04N19/124 ,  H04N19/196 ,  H04N19/61 ,  H04N19/126 ,  H04N19/176 ,  H04N19/157 ,  H04N19/51 ,  H04N19/593 ,  H04N19/174 ,  H04N19/513 ,  H04N19/52 ,  H04N19/139

Abstract: Methods and apparatus are provided for determining quantization parameter predictors from a plurality of neighboring quantization parameters. An apparatus includes an encoder for encoding 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 is determined using multiple quantization parameters from previously coded neighboring portions. A difference between the current quantization parameter and the quantization parameter predictor is encoded for signaling to a corresponding decoder.

公开(公告)号：US11212534B2

公开(公告)日：2021-12-28

申请号：US17022757

申请日：2020-09-16

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Qian Xu ,  Joel Sole ,  Peng Yin ,  Yunfei Zheng ,  Xiaoan Lu

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

Abstract: Methods and apparatus are provided for intra coding a block having pixels assigned to groups. An apparatus includes a video encoder 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.

公开(公告)号：US11082697B2

公开(公告)日：2021-08-03

申请号：US15806893

申请日：2017-11-08

Applicant: InterDigital VC Holdings, Inc.

Inventor： Yunfei Zheng ,  Qian Xu ,  Xiaoan Lu ,  Peng Yin ,  Joel Sole Rojals ,  Adeel Abbas

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

Abstract: Methods and apparatus are provided for signaling intra prediction for large blocks for video encoders and decoders. 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.