公开(公告)号：US20230276074A1

公开(公告)日：2023-08-31

申请号：US18142635

申请日：2023-05-03

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Yang HU ,  Joel SOLE ,  Xiaoan LU ,  Peng YIN ,  Yunfei ZHENG

IPC: H04N19/60 ,  H03M7/40 ,  H04N19/70 ,  H04N19/46 ,  H04N19/13 ,  H04N19/61

CPC classification number: H04N19/60 ,  H03M7/4006 ,  H03M7/4018 ,  H04N19/70 ,  H04N19/46 ,  H04N19/13 ,  H04N19/61

Abstract: Methods and apparatus are provided for improved entropy encoding and decoding. An apparatus includes a video encoder (200) for encoding at least a block in a picture by transforming a residue of the block to obtain transform coefficients, quantizing the transform coefficients to obtain quantized transform coefficients, and entropy coding the quantized transform coefficients. The quantized transform coefficients are encoded using a flag to indicate that a current one of the quantized transform coefficients being processed is a last non-zero coefficient for the block having a value greater than or equal to a specified value.

公开(公告)号：US20230040905A1

公开(公告)日：2023-02-09

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 ,  H04N19/567 ,  H04N19/44 ,  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：US20220086488A1

公开(公告)日：2022-03-17

申请号：US17533235

申请日：2021-11-23

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Yang HU ,  Joel SOLE ,  Xiaoan LU ,  Peng YIN ,  Yunfei ZHENG

IPC: H04N19/60 ,  H03M7/40 ,  H04N19/70 ,  H04N19/46 ,  H04N19/13 ,  H04N19/61

Abstract: Methods and apparatus are provided for improved entropy encoding and decoding. An apparatus includes a video encoder (200) for encoding at least a block in a picture by transforming a residue of the block to obtain transform coefficients, quantizing the transform coefficients to obtain quantized transform coefficients, and entropy coding the quantized transform coefficients. The quantized transform coefficients are encoded using a flag to indicate that a current one of the quantized transform coefficients being processed is a last non-zero coefficient for the block having a value greater than or equal to a specified value.

公开(公告)号：US20200382798A1

公开(公告)日：2020-12-03

申请号：US16903819

申请日：2020-06-17

Applicant: INTERDIGITAL VC HOLDINGS, INC.

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

IPC: H04N19/186 ,  H04N19/70 ,  H04N19/147 ,  H04N19/196 ,  H04N19/463 ,  H04N19/176 ,  H04N19/46 ,  H04N19/11

Abstract: Methods and apparatus are provided for improved chroma encoding and decoding. An apparatus includes an encoder for encoding picture data for at least a block in a picture. Multiple partition types are supported for intra chroma coding of the block. The multiple partition types include a set of chroma partition types and a set of luma partition types. The set of chroma partition types are different than the set of luma partition types.

公开(公告)号：US20200154106A1

公开(公告)日：2020-05-14

申请号：US16720609

申请日：2019-12-19

Applicant: INTERDIGITAL VC HOLDINGS, INC.

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

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

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：US20240298023A1

公开(公告)日：2024-09-05

申请号：US18660738

申请日：2024-05-10

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：US20240205395A1

公开(公告)日：2024-06-20

申请号：US18391736

申请日：2023-12-21

Applicant: INTERDIGITAL VC HOLDINGS, INC.

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

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

CPC classification number: H04N19/117 ,  H04N19/147 ,  H04N19/174 ,  H04N19/196 ,  H04N19/46 ,  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：US20220078448A1

公开(公告)日：2022-03-10

申请号：US17526423

申请日：2021-11-15

Applicant: INTERDIGITAL VC HOLDINGS, INC.

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

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

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：US20250008127A1

公开(公告)日：2025-01-02

申请号：US18884379

申请日：2024-09-13

Applicant: INTERDIGITAL VC HOLDINGS, INC.

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

IPC: H04N19/186 ,  H04N7/00 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/70

Abstract: Methods and apparatus are provided for improved chroma encoding and decoding. An apparatus includes an encoder (400) for encoding picture data for at least a block in a picture. Multiple partition types are supported for intra chroma coding of the block. The multiple partition types include a set of chroma partition types and a set of luma partition types. The set of chroma partition types are different than the set of luma partition types.

公开(公告)号：US20240340453A1

公开(公告)日：2024-10-10

申请号：US18745113

申请日：2024-06-17

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Yang HU ,  Joel SOLE ,  Xiaoan LU ,  Peng YIN ,  Yunfei ZHENG

IPC: H04N19/60 ,  H03M7/40 ,  H04N19/13 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

CPC classification number: H04N19/60 ,  H03M7/4006 ,  H03M7/4018 ,  H04N19/13 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

Abstract: Methods and apparatus are provided for improved entropy encoding and decoding. An apparatus includes a video encoder (200) for encoding at least a block in a picture by transforming a residue of the block to obtain transform coefficients, quantizing the transform coefficients to obtain quantized transform coefficients, and entropy coding the quantized transform coefficients. The quantized transform coefficients are encoded using a flag to indicate that a current one of the quantized transform coefficients being processed is a last non-zero coefficient for the block having a value greater than or equal to a specified value.