公开(公告)号：US11463693B2

公开(公告)日：2022-10-04

申请号：US17003733

申请日：2020-08-26

Applicant: QUALCOMM Incorporated

Inventor： Kevin Pascal Andre Reuze ,  Han Huang ,  Chun-Chi Chen ,  Vadim Seregin ,  Wei-Jung Chien ,  Cheng-Teh Hsieh ,  Marta Karczewicz

IPC: H04N19/119 ,  H04N19/577 ,  H04N19/573 ,  H04N19/139 ,  H04N19/176

Abstract: Techniques for processing video data are described. The techniques include determining a first partition and a second partition for a current block coded in geometric partition mode, determining a first and second prediction block based on a first and second motion vector, blending the first prediction block and the second prediction block based on weights indicative of an amount to scale samples in the first prediction block and the second prediction block to generate a final prediction block, dividing the current block into a plurality of sub-blocks, determining a set of sub-blocks that each include at least one sample that corresponds to a prediction sample in the final prediction block that was generated based on equal weighting of a sample in the first prediction block and a sample in the second prediction block, and storing respective bi-prediction motion vectors for each sub-block in the determined set of sub-blocks.

公开(公告)号：US20210092392A1

公开(公告)日：2021-03-25

申请号：US17028517

申请日：2020-09-22

Applicant: QUALCOMM Incorporated

Inventor： Kevin Pascal Andre Reuze ,  Chun-Chi Chen ,  Han Huang ,  Wei-Jung Chien ,  Vadim Seregin ,  Marta Karczewicz

IPC: H04N19/132 ,  H04N19/105 ,  H04N19/119 ,  H04N19/176 ,  G06F1/03

Abstract: A video decoder can be configured to determine, for a block of video data encoded in a geometric partition mode, an angle for the block for the geometric partition mode; determine a separation line displacement relative to a center of the block for the geometric partition mode; partition the block into first and second partitions based on the angle and the separation line displacement; determine first predictive samples for the block using a motion vector for the first partition and second predictive samples for the block using a motion vector for the second partition; determine a power-of-2 number based on the angle for the block; determine weighting values based on the power-of-2 number; perform a blending operation on the first predictive samples and the second predictive samples based on the weighting values to determine a prediction block for the block.

公开(公告)号：US20210067776A1

公开(公告)日：2021-03-04

申请号：US17003733

申请日：2020-08-26

Applicant: QUALCOMM Incorporated

Inventor： Kevin Pascal Andre Reuze ,  Han Huang ,  Chun-Chi Chen ,  Vadim Seregin ,  Wei-Jung Chien ,  Cheng-Teh Hsieh ,  Marta Karczewicz

IPC: H04N19/119 ,  H04N19/577 ,  H04N19/176 ,  H04N19/139 ,  H04N19/573

Abstract: Techniques for processing video data are described. The techniques include determining a first partition and a second partition for a current block coded in geometric partition mode, determining a first and second prediction block based on a first and second motion vector, blending the first prediction block and the second prediction block based on weights indicative of an amount to scale samples in the first prediction block and the second prediction block to generate a final prediction block, dividing the current block into a plurality of sub-blocks, determining a set of sub-blocks that each include at least one sample that corresponds to a prediction sample in the final prediction block that was generated based on equal weighting of a sample in the first prediction block and a sample in the second prediction block, and storing respective bi-prediction motion vectors for each sub-block in the determined set of sub-blocks.

公开(公告)号：US11405619B2

公开(公告)日：2022-08-02

申请号：US17028517

申请日：2020-09-22

Applicant: QUALCOMM Incorporated

Inventor： Kevin Pascal Andre Reuze ,  Chun-Chi Chen ,  Han Huang ,  Wei-Jung Chien ,  Vadim Seregin ,  Marta Karczewicz

IPC: H04N19/132 ,  H04N19/105 ,  H04N19/119 ,  H04N19/176 ,  G06F1/03

Abstract: A video decoder can be configured to determine, for a block of video data encoded in a geometric partition mode, an angle for the block for the geometric partition mode; determine a separation line displacement relative to a center of the block for the geometric partition mode; partition the block into first and second partitions based on the angle and the separation line displacement; determine first predictive samples for the block using a motion vector for the first partition and second predictive samples for the block using a motion vector for the second partition; determine a power-of-2 number based on the angle for the block; determine weighting values based on the power-of-2 number; perform a blending operation on the first predictive samples and the second predictive samples based on the weighting values to determine a prediction block for the block.

公开(公告)号：US11310497B2

公开(公告)日：2022-04-19

申请号：US17078710

申请日：2020-10-23

Applicant: QUALCOMM Incorporated

Inventor： Kevin Pascal Andre Reuze ,  Han Huang ,  Chun-Chi Chen ,  Po-Han Lin ,  Wei-Jung Chien ,  Vadim Seregin ,  Marta Karczewicz

IPC: H04N19/119 ,  H04N19/167 ,  G06F1/03 ,  H04N19/176 ,  H04N19/159

Abstract: An example device for decoding video data includes a memory configured to store the video data and one or more processors implemented in circuitry and coupled to the memory. The one or more processors are configured to determine a first distance index associated with a first geometric partition mode (GEO) angle for a first prediction unit (PU) of the video data to be 4. The one or more processors are configured to determine a first displacement value based on the first distance index, the first displacement value being indicative of a distance from a center of the first PU to a GEO split. The one or more processors are configured to decode the first PU based on the first GEO angle and the first displacement value. The first displacement value is half of a displacement value associated with a distance index of 2.

公开(公告)号：US11202064B2

公开(公告)日：2021-12-14

申请号：US16909772

申请日：2020-06-23

Applicant: QUALCOMM Incorporated

Inventor： Chun-Chi Chen ,  Wei-Jung Chien ,  Han Huang ,  Yao-Jen Chang ,  Kevin Pascal Andre Reuze ,  Marta Karczewicz

IPC: H04N7/12 ,  H04N19/105 ,  H04N19/137 ,  H04N19/176 ,  H04N19/30 ,  H04N19/46 ,  B23K20/12 ,  B23P15/00 ,  G11B33/14 ,  B23K101/36

Abstract: A video coder is configured to form, in a symmetric motion vector difference mode, a List 0 (L0) base vector using a L0 Advanced Motion Vector Prediction (AMVP) candidate list and a List 1 (L1) base vector using a L1 AMVP candidate list; determine a refined L0 motion vector and a refined L1 motion vector by performing a decoder-side motion vector refinement process that refines the L0 base vector and the L1 base vector; and use the refined L0 motion vector and the refined L1 motion vector to determine a prediction block for a current block of a current picture of the video data.

公开(公告)号：US20200322640A1

公开(公告)日：2020-10-08

申请号：US16836033

申请日：2020-03-31

Applicant: QUALCOMM Incorporated

Inventor： Dmytro Rusanovskyy ,  Kevin Pascal Andre Reuze ,  Marta Karczewicz

IPC: H04N19/70 ,  H04N19/91 ,  H04N19/176 ,  H04N19/44

Abstract: A video coder may determine contexts for entropy coding bins of a last significant coefficient position syntax element. For example, a video coder may determine a respective context for each of one or more bins of a syntax element indicating the position of the last significant coefficient in a transform block using a function of a size of the transform block, wherein the function outputs the respective context such that the same context is not used for transform blocks of differing sizes.

公开(公告)号：US11665339B2

公开(公告)日：2023-05-30

申请号：US17454555

申请日：2021-11-11

Applicant: QUALCOMM Incorporated

Inventor： Chun-Chi Chen ,  Wei-Jung Chien ,  Han Huang ,  Yao-Jen Chang ,  Kevin Pascal Andre Reuze ,  Marta Karczewicz

IPC: H04N7/12 ,  H04N19/105 ,  H04N19/137 ,  H04N19/176 ,  H04N19/30 ,  H04N19/46 ,  B23K20/12 ,  B23P15/00 ,  G11B33/14 ,  C22F1/04 ,  C21D9/00 ,  B23K101/36

CPC classification number: H04N19/105 ,  B23K20/127 ,  B23P15/00 ,  C21D9/0068 ,  C22F1/04 ,  G11B33/1406 ,  G11B33/1486 ,  H04N19/137 ,  H04N19/176 ,  H04N19/30 ,  H04N19/46 ,  B23K2101/36

Abstract: A video coder is configured to form, in a symmetric motion vector difference mode, a List 0 (L0) base vector using a L0 Advanced Motion Vector Prediction (AMVP) candidate list and a List 1 (L1) base vector using a L1 AMVP candidate list; determine a refined L0 motion vector and a refined L1 motion vector by performing a decoder-side motion vector refinement process that refines the L0 base vector and the L1 base vector; and use the refined L0 motion vector and the refined L1 motion vector to determine a prediction block for a current block of a current picture of the video data.

公开(公告)号：US11570442B2

公开(公告)日：2023-01-31

申请号：US16893052

申请日：2020-06-04

Applicant: QUALCOMM Incorporated

Inventor： Kevin Pascal Andre Reuze ,  Chun-Chi Chen ,  Wei-Jung Chien ,  Han Huang ,  Marta Karczewicz ,  Vadim Seregin

IPC: H04B1/66 ,  H04N19/137 ,  H04N19/119 ,  H04N19/176 ,  H04N19/132 ,  H04N19/159 ,  H04N19/105

Abstract: An example video coding device is configured to: code a first set of motion information for a current block of video data partitioned into a first partition and a second partition according to a non-rectangular partition mode, the first set of motion information referring to a reference picture list and being associated with the first partition; after coding the first set of motion information, code a second set of motion information for the current block referring to the reference picture list and that is associated with the second partition; in response to the first set of motion information and the second set of motion information both referring to the reference picture list, store the second set of motion information for the current block; and predict subsequent motion information of a subsequent block of the video data that neighbors the current block using the stored second set of motion information.

公开(公告)号：US11570434B2

公开(公告)日：2023-01-31

申请号：US16998639

申请日：2020-08-20

Applicant: QUALCOMM Incorporated

Inventor： Kevin Pascal Andre Reuze ,  Han Huang ,  Vadim Seregin ,  Marta Karczewicz

IPC: H04N19/119 ,  H04N19/132 ,  H04N19/105 ,  H04N19/176

Abstract: A method of decoding video data includes determining that a geometric partition mode is enabled for a current block of the video data and determining a split line dividing the current block into a first partition and a second partition, where determining the split line comprises selecting an angle for the split line from a plurality of angles, Each angle of the plurality of angles corresponding to an N:M ratio of samples of the current block, where N and M are integers. The split line is not at a corner of the current block. The method further includes determining geometric mode weights for the current block using the angle of the split line, generating a first prediction block using motion information for the first partition, and generating a second prediction block using motion information for the second partition.