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1. US20170280159 - Method of intra picture block copy for screen content and video coding

Office
United States of America
Application Number 15505634
Application Date 26.08.2015
Publication Number 20170280159
Publication Date 28.09.2017
Grant Number 10027981
Grant Date 17.07.2018
Publication Kind B2
IPC
H04N 19/593
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
593involving spatial prediction techniques
H04N 19/52
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
503involving temporal prediction
51Motion estimation or motion compensation
513Processing of motion vectors
517by encoding
52by predictive encoding
H04N 19/11
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
103Selection of coding mode or of prediction mode
11among a plurality of spatial predictive coding modes
CPC
H04N 19/11
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
103Selection of coding mode or of prediction mode
11among a plurality of spatial predictive coding modes
H04N 19/52
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
503involving temporal prediction
51Motion estimation or motion compensation
513Processing of motion vectors
517by encoding
52by predictive encoding
H04N 19/593
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
593involving spatial prediction techniques
Applicants HFI Innovation Inc.
Inventors Xiaozhong Xu
Tzu-Der Chuang
Shan Liu
Agents McClure, Qualey & Rodack, LLP
Title
(EN) Method of intra picture block copy for screen content and video coding
Abstract
(EN)

A method of screen content coding (SCC) and video coding using coding modes including IntraBC mode (Intra-block copy mode) is disclosed. In one embodiment, a Merge candidate list including one or more IntraBC Merge candidates and one or more Inter Merge candidates is derived. If an IntraBC Merge candidate is selected from the Merge candidate list for the current block, the current motion information of the current block is encoded or decoded by sharing candidate motion information of the selected IntraBC Merge candidate as the current motion information of the current block, and the current block is encoded or decoded using a coded block in the current picture located according to the current motion information as an IntraBC predictor. The candidate motion information or the current motion information may include one or more elements selected from a motion information group consisting of coding mode, displacement vector and reference picture information.


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