Invention Grant
- Patent Title: Palette coding for screen content coding
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Application No.: US16908673Application Date: 2020-06-22
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Publication No.: US11895331B2Publication Date: 2024-02-06
- Inventor: Chia-Ming Tsai , Yuwen He , Xiaoyu Xiu , Yan Ye
- Applicant: VID SCALE, INC.
- Applicant Address: US DE Wilmington
- Assignee: VID Scale, Inc.
- Current Assignee: VID Scale, Inc.
- Current Assignee Address: US DE Wilmington
- Agency: Condo Roccia Koptiw LLP
- Main IPC: H04N19/593
- IPC: H04N19/593 ; H04N19/93 ; H04N19/94 ; H04N19/186

Abstract:
Video data may be palette decoded. Data defining a palette table may be received. The palette table may comprise index values corresponding to respective colors. Palette index prediction data may be received and may comprise data indicating index values for at least a portion of a palette index map mapping pixels of the video data to color indices in the palette table. The palette index prediction data may comprise run value data associating run values with index values for at least a portion of a palette index map. A run value may be associated with an escape color index. The palette index map may be generated from the palette index prediction data at least in part by determining whether to adjust an index value of the palette index prediction data based on a last index value. The video data may be reconstructed in accordance with the palette index map.
Public/Granted literature
- US20200322630A1 PALETTE CODING FOR SCREEN CONTENT CODING Public/Granted day:2020-10-08
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