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1. (WO2018123312) IMAGE ENCODING METHOD, IMAGE DECODING METHOD, IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE AND PROGRAM

Pub. No.:    WO/2018/123312    International Application No.:    PCT/JP2017/041083
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Thu Nov 16 00:59:59 CET 2017
IPC: H04N 19/13
H04N 19/157
H04N 19/70
H04N 19/96
Applicants: NEC CORPORATION
日本電気株式会社
Inventors: CHONO Keiichi
蝶野 慶一
Title: IMAGE ENCODING METHOD, IMAGE DECODING METHOD, IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE AND PROGRAM
Abstract:
This image encoding device 10 is provided with an entropy encoding unit 11 which entropy encodes at least a quadtree partition flag, a skip flag, a binary tree partition flag and a binary tree partition direction flag, and an entropy encoding control unit 12 which controls the entropy encoding unit 11. When a skip flag of a terminal node block of a quadtree partition indicates that a binary tree partition flag follows, the entropy encoding control unit 12 causes the entropy encoding unit 11 to entropy encode a binary tree partition flag and a binary tree partition direction flag; when the skip flag of a terminal node block of a quadtree partition indicates that a binary tree partition flag does not follow, the entropy encoding control unit does not cause the entropy encoding unit 11 to entropy encode a binary tree partition flag and a binary tree partition direction flag.