Title:
画像符号化装置、画像符号化方法及びプログラム
Document Type and Number:
Japanese Patent JP7027044
Kind Code:
B2
Abstract:
An image coding apparatus which codes an image using intra prediction determines a size of a prediction block to be a unit of processing for performing intra prediction. The image coding apparatus derives a prediction error by performing intra prediction on the prediction block, derives a coding cost of a prediction mode when performing the intra prediction using a reference according to the determined size, and determines the coding cost of the prediction mode based on the coding cost of the prediction mode and the prediction error. The image coding apparatus determines a prediction mode of the prediction block from among a plurality of prediction modes based on the coding cost.
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Inventors:
Susumu Igarashi
Satoshi Naito
Satoshi Naito
Application Number:
JP2017088532A
Publication Date:
March 01, 2022
Filing Date:
April 27, 2017
Export Citation:
Assignee:
Canon Inc
International Classes:
H04N19/11; H04N19/119; H04N19/136; H04N19/147; H04N19/159; H04N19/196
Domestic Patent References:
| JP2015211269A | ||||
| JP2014140169A | ||||
| JP2017050744A | ||||
| JP2015119396A |
Foreign References:
| US20130044811 |
Other References:
CHEN, Jianle et al.,Algorithm Description of Joint Exploration Test Model 1,Joint Video Exploration Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11 1nd Meeting: Geneva, CH, 19-21 October 2015, [JVET-A1001],JVET-A1001 (version 1),ITU-T,2015年,JVET-A1001.doc: pp. 6-7
Attorney, Agent or Firm:
Kokubun Takaetsu
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