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Patent Searching and Data


Title:
METHOD AND SYSTEM OF DECODED PICTURE BUFFER FOR INTRA BLOCK COPY MODE
Document Type and Number:
WIPO Patent Application WO/2017/041692
Kind Code:
A1
Abstract:
A method for a video encoder or decoder using an Intra Block Copy (IntraBC) mode is disclosed. If IntraBC mode is enabled and no loop filter is used for a current picture, a currently decoded reference picture for the current picture is marked as a long-term reference picture before and during decoding of the current picture. The currently decoded reference picture is assigned in reference picture list construction for IntraBC reference of the current picture and buffer fullness for the DPB is calculated before starting decoding the current picture by taking into account of only one reference picture buffer. According to another method, if the maximum DPB size is 1, a variable or a syntax element is set to a target value to impose restriction to use only one picture storage buffer in the DPB to store reference picture for encoding or decoding of a current picture.

Inventors:
XU XIAOZHONG (US)
LIU SHAN (US)
Application Number:
PCT/CN2016/098182
Publication Date:
March 16, 2017
Filing Date:
September 06, 2016
Export Citation:
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Assignee:
MEDIATEK INC (CN)
International Classes:
H04N19/436
Foreign References:
CN101841717A2010-09-22
US20120106634A12012-05-03
Other References:
JOSHI, RAJAN ET AL.: "High Efficiency Video Coding (HEVC) Screen Content Coding: Draft 4", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG 16 WP 3 AND ISOILEC JTC 1/SC 29/WG 11 21ST MEETING, 19 June 2015 (2015-06-19), Warsaw, PL, XP055368282
XU, XIAOZHONG ET AL.: "On storage of filtered and unfiltered current decoded pictures", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 21ST MEETING, 19 June 2015 (2015-06-19), Warsaw, PL, XP030117629
See also references of EP 3342165A4
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (Block A Corporate Square, No.35 Jinrong Street, Beijing 3, CN)
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