ENCODING DEVICE, DECODING DEVICE, ENCODING METHOD, AND DECODING METHOD

Title:

ENCODING DEVICE, DECODING DEVICE, ENCODING METHOD, AND DECODING METHOD

Document Type and Number:

WIPO Patent Application WO/2019/093279

Kind Code:

A1

Abstract:

An encoding device (100) comprises a circuit (150) and a memory (152), and when encoding a block to be encoded using inter-prediction, the encoding device (100): determines, on the basis of a time motion vector candidate and a space motion vector candidate, whether to use a generated time-space motion vector candidate as an option of a motion vector; when determining to use the time-space motion vector candidate as an option for the motion vector, and setting the time-space motion vector candidate using units of each of a plurality of sub-blocks to be encoded obtained by splitting the block to be encoded, selects, as the time motion vector candidate, the motion vector of the sub-block in the same position in relation to the sub-block to be encoded in a reference picture (304), and selects, as the space motion vector candidate, the motion vector of a block or sub-block spatially adjacent to the block to be encoded; and generates the time-space motion vector candidate on the basis of the time motion vector candidate and the space motion vector candidate.

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Inventors:

TOMA TADAMASA (JP)
NISHI TAKAHIRO
ABE KIYOFUMI
KANOH RYUICHI

Application Number:

PCT/JP2018/041054

Publication Date:

May 16, 2019

Filing Date:

November 05, 2018

Export Citation:

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Assignee:

PANASONIC IP CORP AMERICA (US)

International Classes:

H04N19/52; H04N19/105; H04N19/109

Foreign References:

US9531990B1	2016-12-27
JP2016158289A	2016-09-01
US20130022117A1	2013-01-24

Other References:

S.BIPLAB RAUT: "Tiles coding improvement for Inter pictures by improved merge list at tile boundaries", JOINT VIDEO EXPLORATION TEAM(JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG11 3RD MEETING, no. JVET-C0026, 24 May 2016 (2016-05-24), Geneva, CH, pages 1 - 5, XP030150109
JIANLE CHEN ET AL.: "Algorithm Description of Joint Exploration Test Model 5 (JEM 5", JOINT VIDEO EXPLORATION TEAM(JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG11 5TH MEETING, no. JVET-E1001-V2, 11 February 2017 (2017-02-11), Geneva, CH, pages 15 - 27, XP030150648

Attorney, Agent or Firm:

NII, Hiromori et al. (JP)

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