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1. (WO2018101288) ENCODING DEVICE, ENCODING METHOD, DECODING DEVICE, AND DECODING METHOD

Pub. No.:    WO/2018/101288    International Application No.:    PCT/JP2017/042720
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Thu Nov 30 00:59:59 CET 2017
IPC: H04N 19/12
H04N 19/159
H04N 19/176
Applicants: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ
Inventors: OHKAWA Masato
大川 真人
SAITOU Hideo
齋藤 秀雄
NISHI Takahiro
西 孝啓
TOMA Tadamasa
遠間 正真
Title: ENCODING DEVICE, ENCODING METHOD, DECODING DEVICE, AND DECODING METHOD
Abstract:
An encoding device (100) for encoding a block to be encoded in an image is provided with: a determination unit (1061) which determines which of intra processing and inter processing is to be used for the block to be encoded, and when the intra processing is to be used for the block to be encoded, determines whether or not an intra prediction mode for the block to be encoded is a non-directional prediction mode; and a frequency transform unit (1063) which, when the intra prediction mode for the block to be encoded is the non-directional prediction mode, transforms the block to be encoded, using a first transform base, and when the intra prediction mode for the block to be encoded is not the non-directional prediction mode, transforms the block to be encoded, using a second transform base. The first transform base is a predefined fixed base or a base determined on the basis of an encoding parameter.