Invention Grant
- Patent Title: Matrix intra prediction and cross-component linear model prediction harmonization for video coding
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Application No.: US16893974Application Date: 2020-06-05
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Publication No.: US11115658B2Publication Date: 2021-09-07
- Inventor: Thibaud Laurent Biatek , Geert Van der Auwera , Adarsh Krishnan Ramasubramonian , Marta Karczewicz
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Shumaker & Sieffert, P.A.
- Main IPC: H04N7/18
- IPC: H04N7/18 ; H04N19/11 ; H04N19/59 ; H04N19/176 ; H04N19/70 ; H04N19/159 ; H04N19/105 ; H04N19/132 ; H04N19/186 ; H04N19/91 ; H04N19/167 ; H04N19/61 ; H04N19/23 ; H04N19/136 ; G06T3/40 ; G06T7/50

Abstract:
A method of decoding video data includes predicting luma samples for a block of the video data using matrix intra prediction (MIP), where using MIP comprises down-sampling a set of luma neighboring samples to generate down-sampled luma neighboring samples. The method further includes predicting chroma samples for the block using cross-component linear model (CCLM) prediction, where using CCLM prediction comprises predicting the chroma samples for the block based on the down-sampled luma neighboring samples generated from the MIP. The method further includes determining a prediction block for the block based on the luma samples and the chroma samples, decoding a residual block for the block, and combining the prediction block and the residual block to decode the block.
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