公开(公告)号：US12069246B2

公开(公告)日：2024-08-20

申请号：US18066602

申请日：2022-12-15

Applicant: QUALCOMM Incorporated

Inventor： Jingya Li ,  Vadim Seregin ,  Marta Karczewicz

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

CPC classification number: H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

Abstract: An method of decoding video data includes deriving, for a current block of video data and using decoder side intra mode derivation (DIMD), a list of intra modes using reconstructed samples of neighboring blocks; constructing, for the current block, a most probable mode (MPM) list, wherein constructing the MPM list comprises inserting, into the MPM list, at least one intra mode from the derived list of intra modes; and predicting, using a candidate selected from the constructed MPM list, the current block.

公开(公告)号：US12069244B2

公开(公告)日：2024-08-20

申请号：US17932595

申请日：2022-09-15

Applicant: QUALCOMM Incorporated

Inventor： Han Huang ,  Vadim Seregin ,  Chun-Chi Chen ,  Marta Karczewicz

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/137 ,  H04N19/176

CPC classification number: H04N19/105 ,  H04N19/132 ,  H04N19/137 ,  H04N19/176

Abstract: A method of decoding video data includes determining a plurality of hypotheses of a current block based on a plurality of motion vectors. Each of the plurality of motion vectors is associated with one of the plurality of hypotheses, and each of the plurality of hypotheses is based on a set of samples in a reference picture having a motion vector that identifies a top-left sample of the set of samples. The method includes determining one or more neighboring samples in the same picture as the current block, for each of the plurality of hypotheses, determining respective correlation values between at least one sample of a respective hypothesis and at least one sample of the one or more neighboring samples, determining the motion vector for the current block based on the determined respective correlation values, and reconstructing the current block based on the determined motion vector.

公开(公告)号：US12058381B2

公开(公告)日：2024-08-06

申请号：US17806192

申请日：2022-06-09

Applicant: QUALCOMM Incorporated

Inventor： Venkata Meher Satchit Anand Kotra ,  Nan Hu ,  Vadim Seregin ,  Marta Karczewicz

IPC: H04N19/82 ,  H04N19/117 ,  H04N19/132 ,  H04N19/85 ,  H04N19/423

CPC classification number: H04N19/82 ,  H04N19/117 ,  H04N19/132 ,  H04N19/85 ,  H04N19/423

Abstract: A video encoder or video decoder are configured to reconstruct the video data to generate reconstructed video data. The video encoder or video decoder may further perform a plurality of loop filter operations on the reconstructed video data in parallel, wherein the plurality of loop filter operations includes a first filter operation that is not a bilateral filter operation or a sample adaptive offset (SAO) filter operation, and perform a joint clipping operation on a first output of the first filter and a second output of a second loop filter operation of the plurality of loop filter operations. The first filter operation may be a cross-component sample adaptive offset (CCSAO) filter operation.

公开(公告)号：US20240244265A1

公开(公告)日：2024-07-18

申请号：US18433946

申请日：2024-02-06

Applicant: QUALCOMM Incorporated

Inventor： Hongtao Wang ,  Venkata Meher Satchit Anand Kotra ,  Jianle Chen ,  Marta Karczewicz ,  Dana Kianfar ,  Auke Joris Wiggers

IPC: H04N19/70 ,  H04N19/172 ,  H04N19/192 ,  H04N19/44 ,  H04N19/80

CPC classification number: H04N19/70 ,  H04N19/172 ,  H04N19/192 ,  H04N19/44 ,  H04N19/80

Abstract: An example device for filtering decoded video data includes a memory configured to store video data; and one or more processors implemented in circuitry and configured to: decode a picture of video data; code a value for a syntax element representing a neural network model to be used to filter a portion of the decoded picture, the value representing an index into a set of pre-defined neural network models, the index corresponding to the neural network model in the set of pre-defined neural network models; and filter the portion of the decoded picture using the neural network model corresponding to the index.

公开(公告)号：US20240244197A1

公开(公告)日：2024-07-18

申请号：US18408928

申请日：2024-01-10

Applicant: QUALCOMM Incorporated

Inventor： Chun-Chi Chen ,  Bappaditya Ray ,  Hongtao Wang ,  Vadim Seregin ,  Marta Karczewicz ,  Han Huang

IPC: H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70 ,  H04N19/80

CPC classification number: H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70 ,  H04N19/80

Abstract: A method of encoding or decoding video data includes determining a block vector for a current block of a current picture, the block vector identifying a fractional-pel position between reference samples in the current picture and having a fractional-pel resolution that is less than integer-pel resolution; generating a prediction block from reference samples in the current picture based on the fractional-pel position; and encoding or decoding the current block based on the prediction block.

公开(公告)号：US12033361B2

公开(公告)日：2024-07-09

申请号：US17169342

申请日：2021-02-05

Applicant: QUALCOMM Incorporated

Inventor： Ankitesh Kumar Singh ,  Cheng-Teh Hsieh ,  Marta Karczewicz

IPC: G06T9/00 ,  G06T1/20 ,  G06T7/90

CPC classification number: G06T9/004 ,  G06T1/20 ,  G06T7/90 ,  G06T9/001

Abstract: The present disclosure relates to methods and devices for data or graphics processing including an apparatus, e.g., a GPU. The apparatus may receive at least one bitstream including a plurality of bits, each of the bits corresponding to a position in the at least one bitstream, and each of the bits being associated with color data. The apparatus may also arrange an order of the plurality of bits in the at least one bitstream, such that at least one of the bits corresponds to an updated position in the at least one bitstream. Additionally, the apparatus may convert, upon arranging the order of the bits, the color data associated with each of the plurality of bits in the at least one bitstream. The apparatus may also compress, upon converting the color data associated with each of the bits, the plurality of bits in the at least one bitstream.

公开(公告)号：US20240223769A1

公开(公告)日：2024-07-04

申请号：US18540046

申请日：2023-12-14

Applicant: QUALCOMM Incorporated

Inventor： Zhi Zhang ,  Pavel Nikitin ,  Han Huang ,  Vadim Seregin ,  Marta Karczewicz

IPC: H04N19/137 ,  H04N19/105 ,  H04N19/176

CPC classification number: H04N19/137 ,  H04N19/105 ,  H04N19/176

Abstract: A method of decoding video data includes determining a vector predictor for a current block; determining a first set of vector difference candidates based on a first pel-interval, the first pel-interval defining a first distance between consecutive vector difference candidates in the first set of vector difference candidates starting with the vector predictor; determining a second set of vector difference candidates based on the first set of vector difference candidates and a second pel-interval, the second pel-interval defining a second distance between consecutive vector difference candidates in the second set of vector difference candidates; constructing a vector difference candidate list based on the second set of vector difference candidates; determining a vector for the current block based on the vector predictor and a vector difference from the vector difference candidate list; and reconstructing the current block based on the vector for the current block.

公开(公告)号：US12003731B2

公开(公告)日：2024-06-04

申请号：US17933318

申请日：2022-09-19

Applicant: QUALCOMM Incorporated

Inventor： Bappaditya Ray ,  Vadim Seregin ,  Marta Karczewicz

IPC: H04N19/136 ,  H04N19/176 ,  H04N19/18 ,  H04N19/60

CPC classification number: H04N19/136 ,  H04N19/176 ,  H04N19/18 ,  H04N19/60

Abstract: An example device for decoding video data includes a memory configured to store video data; and one or more processors implemented in circuitry and configured to: determine a number of multiple transform selection (MTS) candidates for a current block of video data, the number being greater than zero and different than four, the MTS candidates being MTS candidates other than a DCT2 candidate; determine one of the MTS candidates of the number of MTS candidates for the current block; inverse transform a transform block for the current block using the determined one of the MTS candidates to produce a residual block; and decode the current block using the residual block.

公开(公告)号：US20240179342A1

公开(公告)日：2024-05-30

申请号：US18507544

申请日：2023-11-13

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhang ,  Han Huang ,  Vadim Seregin ,  Marta Karczewicz

IPC: H04N19/52 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/70

CPC classification number: H04N19/52 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/70

Abstract: A video coder is configured to receive a first block of video data to be coded using adaptive affine decoder side motion vector refinement (DMVR). The video coder may determine to set a first motion vector difference (MVD) for a first reference picture list to zero, and then refine control point motion vectors (CPMVs) associated with a second reference picture list to generate refined CPMVs. The video coder may then code the first block of video data using the refined CPMVs.

公开(公告)号：US20240135596A1

公开(公告)日：2024-04-25

申请号：US18490467

申请日：2023-10-18

Applicant: QUALCOMM Incorporated

Inventor： Anique Akhtar ,  Geert Van der Auwera ,  Adarsh Krishnan Ramasubramonian ,  Marta Karczewicz

IPC: G06T9/00

CPC classification number: G06T9/002

Abstract: A method of encoding point cloud data includes receiving, for a first encoding process, geometry data of the point cloud data of a source point cloud; encoding, in accordance with the first encoding process, the geometry data to generate encoded geometry data of a target point cloud and a geometry bitstream; decoding the encoded geometry data to generate reconstructed geometry data; performing an attribute recomputing process on attribute data of the point cloud data of the source point cloud based on the reconstructed geometry data to generate recomputed, reconstructed point cloud data of the target point cloud; and encoding, in accordance with a second encoding process, the recomputed, reconstructed point cloud data to generate an attribute bitstream.