Invention Grant
- Patent Title: Minimum allowed quantization parameter for transform skip mode and palette mode in video coding
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Application No.: US16917051Application Date: 2020-06-30
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Publication No.: US11218700B2Publication Date: 2022-01-04
- Inventor: Marta Karczewicz , Yung-Hsuan Chao , Hongtao Wang , Muhammed Zeyd Coban
- 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: H04N19/126
- IPC: H04N19/126 ; H04N19/70 ; H04N19/136 ; H04N19/103 ; H04N19/60 ; H04N19/182
Abstract:
A video encoder derives a minimum allowed base quantization parameter for video data based on an input bitdepth of the video data, determines a base quantization parameter for a block of the video data based on the minimum allowed base quantization parameter, and quantizes the block of video data based on the base quantization parameter. In a reciprocal fashion, a video decoder derives a minimum allowed base quantization parameter for the video data based on an input bitdepth of the video data, determines a base quantization parameter for a block of the video data based on the minimum allowed base quantization parameter, and inverse quantizes the block of video data based on the base quantization parameter.
Public/Granted literature
- US20210006794A1 MINIMUM ALLOWED QUANTIZATION PARAMETER FOR TRANSFORM SKIP MODE AND PALETTE MODE IN VIDEO CODING Public/Granted day:2021-01-07
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