Title:
VIDEO CODING DEVICE, VIDEO DECODING DEVICE, VIDEO CODING METHOD, VIDEO DECODING METHOD AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/069601
Kind Code:
A1
Abstract:
This video coding device performs video coding using block based affine transform motion compensated prediction that includes a process of calculating the motion vector of a sub-block using the motion vector of a control point in a block. The video coding device is provided with a block based affine transform motion compensated prediction control means for controlling at least one of the block size, prediction direction, and motion vector accuracy of a sub-block in a block to be subjected to the block based affine transform motion compensated prediction, using at least one of a video size, the prediction direction of the block, and a difference in the motion vector of the control point in the block.
Inventors:
CHONO KEIICHI (JP)
Application Number:
PCT/JP2018/032348
Publication Date:
April 11, 2019
Filing Date:
August 31, 2018
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04N19/119; H04N19/105; H04N19/136; H04N19/139; H04N19/159; H04N19/176
Domestic Patent References:
| WO2007034918A1 | 2007-03-29 | |||
| WO2006082690A1 | 2006-08-10 | |||
| WO2016184261A1 | 2016-11-24 | |||
| WO2013111596A1 | 2013-08-01 |
Foreign References:
| JP2014107708A | 2014-06-09 | |||
| JP2007096540A | 2007-04-12 | |||
| JP2007201558A | 2007-08-09 |
Other References:
ZHAO, J. ET AL.: "On affine motion vectors", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3, 13 October 2016 (2016-10-13), Chengdu, CN, pages 1 - 4, XP030150411
Attorney, Agent or Firm:
IWAKABE Fuyuki et al. (JP)
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