Invention Grant
- Patent Title: Adaptive loop filter with adaptive parameter set
-
Application No.: US16845070Application Date: 2020-04-10
-
Publication No.: US11546587B2Publication Date: 2023-01-03
- Inventor: Yu-Ling Hsiao , Chun-Chia Chen , Ching-Yeh Chen , Tzu-Der Chuang , Chih-Wei Hsu
- Applicant: MediaTek Inc.
- Applicant Address: TW Hsinchu
- Assignee: MediaTek Inc.
- Current Assignee: MediaTek Inc.
- Current Assignee Address: TW Hsinchu
- Agency: Han IP PLLC
- Agent Andy M. Han
- Main IPC: H04N19/117
- IPC: H04N19/117 ; H04N19/176 ; H04N19/82

Abstract:
A method for signaling adaptive loop filter (ALF) settings is provided. A video decoder receives data from a bitstream for a block of pixels to be decoded as a current block of a current picture of a video. The video decoder parses whether to use adaptive parameter set (APS) for filtering the current block without determining whether to select a particular APS from a plurality of APSs. When the APS is used to filter the current block, the video decoder parses a first filter selection index for selecting a filter from a set of filters in the APS. When the APS is not used to filter the current block, the video decoder signals a second filter selection index for selecting a filter from a set of default fixed filters. The video decoder filters the current block based on the selected filter. The video decoder outputs the filtered current block.
Public/Granted literature
- US20200329239A1 Adaptive Loop Filter With Adaptive Parameter Set Public/Granted day:2020-10-15
Information query