Title:
IMAGE CODING DEVICE AND IMAGE CODING METHOD
Document Type and Number:
WIPO Patent Application WO/2014/054267
Kind Code:
A1
Abstract:
An image coding device (100) for coding an input image comprises: a picture dividing unit (102) for dividing an input image block to be coded into a plurality of sub-blocks; and an intra-prediction unit (109) for performing an intra-prediction on each of the divided sub-blocks. The intra-prediction unit (109) includes: a determination unit (120) for determining whether or not the size of a sub-block to be predicted is a predetermined size or less; a decision unit (121) for, when it is determined that the size of the sub-block to be predicted is the predetermined size or less, deciding, as prediction mode candidates, m intra-prediction modes that are less than M intra-prediction modes predetermined independently of a block size, where m is a natural number and M is a natural number greater than or equal to 2; and a prediction unit (122) for selecting one intra-prediction mode from among the decided prediction mode candidates and performing an intra-prediction on the sub-block to be predicted using the selected intra-prediction mode.
Inventors:
SAKAKIBARA KAZUMA
ABE KIYOFUMI
OHGOSE HIDEYUKI
ARIMURA KOJI
ARAKAWA HIROSHI
KIMURA KAZUHITO
ABE KIYOFUMI
OHGOSE HIDEYUKI
ARIMURA KOJI
ARAKAWA HIROSHI
KIMURA KAZUHITO
Application Number:
PCT/JP2013/005811
Publication Date:
April 10, 2014
Filing Date:
September 30, 2013
Export Citation:
Assignee:
PANASONIC CORP (JP)
International Classes:
H04N7/32
Domestic Patent References:
| WO2012042860A1 | 2012-04-05 |
Foreign References:
| JP2003520531A | 2003-07-02 | |||
| JP2006148419A | 2006-06-08 | |||
| JP2012147268A | 2012-08-02 | |||
| JP2012147332A | 2012-08-02 | |||
| JP2009105696A | 2009-05-14 |
Other References:
KEN MCCANN ET AL.: "Samsung's Response to the Call for Proposals on Video Compression Technology", JOINT COLLABORATIVE TEAM ON VIDEO CODING(JCT-VC) OF ITU-T SG16 WP3 AND ISO/IEC JTC1/SC29/WG11 1ST MEETING, 23 April 2010 (2010-04-23), DRESDEN, DE, pages 16 - 17
Attorney, Agent or Firm:
NII, Hiromori et al. (JP)
New house Extensive 守 (JP)
New house Extensive 守 (JP)
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