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1. (WO2013155897) METHOD AND APPARATUS FOR LOOP FILTERING ACROSS SLICE OR TILE BOUNDARIES

Pub. No.:    WO/2013/155897    International Application No.:    PCT/CN2013/071761
Publication Date: Fri Oct 25 01:59:59 CEST 2013 International Filing Date: Sat Feb 23 00:59:59 CET 2013
IPC: H04N 7/26
Applicants: MEDIATEK INC.
Inventors: FU, Chih-Ming
TSAI, Chia-Yang
HSU, Chih-Wei
CHEN, Ching-Yeh
HUANG, Yu-Wen
LEI, Shaw-Min
Title: METHOD AND APPARATUS FOR LOOP FILTERING ACROSS SLICE OR TILE BOUNDARIES
Abstract:
A method and apparatus for loop filter processing of video data in a video encoder or decoder are disclosed. Embodiments according to the present invention conditionally allow sharing of loop filter parameters. In one embodiment, sharing of loop filter information between the current block and a neighboring block is determined according to a condition. If the condition indicates that sharing of loop filter information is allowed, a merge flag is coded and incorporated in the video bitstream in an encoder, and a merge flag is parsed from the video bitstream and decoded in a decoder.In one embodiment, the condition depends on region partitioning of the picture, where region partitioning partitions the picture into regions and the region may correspond to a slice or a tile. The condition is set to indicate that sharing of loop filter information is allowed if the block and the neighboring block are in a same slice/tile.