INTRA-PICTURE PREDICTION USING NON-ADJACENT REFERENCE LINES OF SAMPLE VALUES

Title:

INTRA-PICTURE PREDICTION USING NON-ADJACENT REFERENCE LINES OF SAMPLE VALUES

Document Type and Number:

WIPO Patent Application WO/2017/190288

Kind Code:

A1

Abstract:

Innovations in intra-picture prediction with multiple candidate reference lines available are described herein. For example, intra-picture prediction for a current block uses a non-adjacent reference line of sample values to predict the sample values of the current block. This can improve the effectiveness of the intra-picture prediction when the reference line of sample values that is adjacent the current block includes significant capture noise, significant quantization error, or significantly different values (compared to the current block) due to an occlusion. Innovations described herein include, but are not limited to, the following: intra-picture prediction with multiple candidate reference lines available; encoding/decoding of reference line indices using prediction; filtering of reference sample values; residue compensation weighted prediction; mode-dependent padding to replace unavailable reference sample values; using in-loop-filtered reference sample values; encoder-side decisions for selecting reference lines; and post-filtering of predicted sample values.

Inventors:

LI BIN (CN)
XU JIZHENG (CN)
LI JIAHAO (CN)

Application Number:

PCT/CN2016/080966

Publication Date:

November 09, 2017

Filing Date:

May 04, 2016

Export Citation:

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Assignee:

MICROSOFT TECHNOLOGY LICENSING LLC (US)
LI BIN (CN)
XU JIZHENG (CN)
LI JIAHAO (CN)

International Classes:

H04N19/61

Foreign References:

CN103200401A	2013-07-10
KR20140124443A	2014-10-27
US6128041A	2000-10-03

Other References: