公开(公告)号：US20250008085A1

公开(公告)日：2025-01-02

申请号：US18755330

申请日：2024-06-26

Applicant: QUALCOMM Incorporated

Inventor： Po-Han Lin ,  Jian-Liang Lin ,  Yao-Jen Chang ,  Vadim Seregin ,  Marta Karczewicz

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

Abstract: A method of encoding or decoding video data includes storing a block vector (BV) for a current block in a history BV list for encoding or decoding a subsequent block, wherein the current block is encoded or decoded in intra temporal motion vector prediction (IntraTMP) mode, and wherein the history BV list includes BVs for blocks that do not neighbor the subsequent block; deriving a candidate list of BVs for the subsequent block based on BVs from the history BV list that includes the BV for the current block; and encoding or decoding the subsequent block based on the candidate list of BVs.

公开(公告)号：US20240430420A1

公开(公告)日：2024-12-26

申请号：US18732460

申请日：2024-06-03

Applicant: QUALCOMM Incorporated

Inventor： Han Huang ,  Vadim Seregin ,  Marta Karczewicz ,  Hongtao Wang

IPC: H04N19/119 ,  H04N19/176 ,  H04N19/186 ,  H04N19/96

Abstract: Devices and methods are described for coding a chroma block of video data. An example device includes one or more memories configured to store the video data. The device includes one or more processors in communication with the one or more memories. The one or more processors are configured to determine that single-tree block partitioning is used on a block of the video data. The one or more processors are configured to apply an intra chroma copy mode to a chroma block of the block. The one or more processors are configured to encode or decode the chroma block based on single-tree block partitioning and the intra chroma copy mode.

公开(公告)号：US20240397053A1

公开(公告)日：2024-11-28

申请号：US18671610

申请日：2024-05-22

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/137 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70

Abstract: A device for decoding video data includes memory configured to store the video data and processing circuitry. The processing circuitry is configured to determine that a current block of the video data is inter-predicted in a combined inter-intra prediction (CIIP) mode or a geometric partitioning mode (GPM), determine that template matching is enabled for the current block, generate a motion vector for the current block based on template matching; determine a prediction block for the current block based on the motion vector in accordance with the CHIP mode or the GPM, and reconstruct the current block based on the prediction block.

公开(公告)号：US20240357144A1

公开(公告)日：2024-10-24

申请号：US18638221

申请日：2024-04-17

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/44 ,  H04N19/30 ,  H04N19/597

CPC classification number: H04N19/44 ,  H04N19/30 ,  H04N19/597

Abstract: A device for decoding encoded mesh data determines, based on the encoded mesh data, a base mesh; determine, based on the encoded mesh data, a set of coefficients; receives in the encoded mesh data a quantization parameter value; determines an inverse scaling factor based on the quantization parameter value; performs an inverse scaling, based on the inverse scaling factor and using integer precision arithmetic, on the set of coefficients to determine a set of de-quantized coefficients; determines a displacement vector based on the set of de-quantized coefficients; deforms the base mesh based on the displacement vector to determine a decoded mesh; and outputs the decoded mesh.

公开(公告)号：US20240357079A1

公开(公告)日：2024-10-24

申请号：US18633182

申请日：2024-04-11

Applicant: QUALCOMM Incorporated

Inventor： Jian-Liang Lin ,  Po-Han Lin ,  Vadim Seregin ,  Marta Karczewicz ,  Yao-Jen Chang ,  Zhi Zhang

IPC: H04N19/105 ,  H04N19/174 ,  H04N19/176

CPC classification number: H04N19/105 ,  H04N19/174 ,  H04N19/176

Abstract: A method of encoding or decoding video data includes selecting a group of blocks based on probing samples determined from pixels that are proximate to the blocks in the group of blocks and current probing samples determined from pixels that are proximate to a current block; fusing the blocks in the group of blocks to generate a prediction signal; and encoding or decoding the current block based on the prediction signal.

公开(公告)号：US20240348837A1

公开(公告)日：2024-10-17

申请号：US18631748

申请日：2024-04-10

Applicant: QUALCOMM Incorporated

Inventor： Dmytro Rusanovskyy ,  Yun Li ,  Samuel James Eadie ,  Marta Karczewicz

IPC: H04N19/82 ,  H04N19/117 ,  H04N19/172 ,  H04N19/176

CPC classification number: H04N19/82 ,  H04N19/117 ,  H04N19/172 ,  H04N19/176

Abstract: A device for decoding video data receives a picture of video data; reconstructs a block of the picture of video data to generate a reconstructed block; and performs a neural network (NN)-based filter process on the reconstructed block to generate a filtered block, wherein the NN-based filter process includes performing a plurality of separable convolutions in parallel with a point-wise input convolution.

公开(公告)号：US20240348825A1

公开(公告)日：2024-10-17

申请号：US18630686

申请日：2024-04-09

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/597 ,  H04N19/30 ,  H04N19/60

CPC classification number: H04N19/597 ,  H04N19/30 ,  H04N19/60

Abstract: A device for decoding encoded mesh data can be configured to determine, based on the encoded mesh data, a base mesh; determine, based on the encoded mesh data, a set of coefficients; receive in the encoded mesh data a quantization parameter value; receive in the encoded mesh data a bit depth offset value; determine an inverse scaling factor based on the quantization parameter value and the bit depth offset value; perform an inverse scaling on the set of coefficients based on the inverse scaling factor to determine a set of de-quantized coefficients; determine a displacement vector based on the set of de-quantized coefficients; deform the base mesh based on the displacement vector to determine a decoded mesh; and output the decoded mesh.

公开(公告)号：US12114000B2

公开(公告)日：2024-10-08

申请号：US16810680

申请日：2020-03-05

Applicant: QUALCOMM Incorporated

Inventor： Geert Van der Auwera ,  Bappaditya Ray ,  Adarsh Krishnan Ramasubramonian ,  Muhammed Zeyd Coban ,  Luong Pham Van ,  Marta Karczewicz

IPC: H04N19/44 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186

CPC classification number: H04N19/45 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/174

Abstract: A video decoder may apply a first inverse residual modification function to first decoded modified chroma residual data to generate first inverse modified chroma residual data. Additionally, the video decoder may apply a second inverse residual modification function to second decoded modified chroma residual data to generate second inverse modified chroma residual data. The first decoded modified chroma residual data is associated with a first chroma component and the second decoded modified chroma residual data is associated with a second chroma component. The video decoder may reconstruct a block of video data based on the first inverse modified chroma residual data and the second inverse modified chroma residual data.

公开(公告)号：US20240333911A1

公开(公告)日：2024-10-03

申请号：US18617841

申请日：2024-03-27

Applicant: QUALCOMM Incorporated

Inventor： Po-Han Lin ,  Jian-Liang Lin ,  Vadim Seregin ,  Marta Karczewicz

IPC: H04N19/105 ,  H04N19/176 ,  H04N19/52 ,  H04N19/70 ,  H04N19/80

CPC classification number: H04N19/105 ,  H04N19/176 ,  H04N19/52 ,  H04N19/70 ,  H04N19/80

Abstract: A method of encoding or decoding video data, the method comprising: applying a sub-pel precision mode to generate a prediction block for a current block of the video data, wherein a syntax element indicates that the sub-pel precision mode is applied to the current block and applying the sub-pel precision mode comprises: applying an interpolation filter to samples of a reference region to generate an array of samples at full-pel and sub-pel precision; and identifying, within the array, a reference template of the prediction block, wherein the reference template of the prediction block is a best match for a template of the current block within the array, wherein a template pattern defines a shape of the reference template of the prediction block and the template of the current block; and encoding or decoding the current block using the prediction block for the current block.

公开(公告)号：US20240283925A1

公开(公告)日：2024-08-22

申请号：US18442955

申请日：2024-02-15

Applicant: QUALCOMM Incorporated

Inventor： Dmytro Rusanovskyy ,  Samuel James Eadie ,  Yun Li ,  Marta Karczewicz

IPC: H04N19/117 ,  H04N19/105 ,  H04N19/176

CPC classification number: H04N19/117 ,  H04N19/105 ,  H04N19/176

Abstract: A video coder is configured to perform a neural network (NN)-based filter process on reconstructed blocks of vide data. In one example, a video coder may receive a picture of video data, and reconstruct a block of the picture of video data to generate a reconstructed block. The video coder may perform the NN-based filter process on the reconstructed block to generate a filtered block, wherein the NN-based filter process includes performing a plurality separable convolutions to approximate a multi-dimensional convolution.