Title:
VIDEO CODING DEVICE AND VIDEO DECODING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/078169
Kind Code:
A1
Abstract:
In a single picture, a slice or a tile can be decoded without reference to information outside the target slice or target tile. However, it has been a problem that, in order to decode a partial region of a video picture in a sequence, the entire video picture had to be reproduced, and that complex encoding structures exist, such as slices and tiles coexisting in a single picture, and slices being formed of independent slices and dependent slices. In the present invention, a flag indicating whether the shape of a slice is rectangular or not is decoded, and in the case when the flag indicates the slice shape to be rectangular, the position and size of the rectangular slice is not changed over a period during which the same SPS is being referenced. In addition, the rectangular slice is independently decoded without reference to information of other slices. Thus, by introducing a rectangular slice as an alternative to a tile, the present invention is able to simplify a complex encoding structure.
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Inventors:
AONO TOMOKO
IKAI TOMOHIRO
CHUJOH TAKESHI
IKAI TOMOHIRO
CHUJOH TAKESHI
Application Number:
PCT/JP2018/038362
Publication Date:
April 25, 2019
Filing Date:
October 15, 2018
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
H04N19/70; H04N19/55
Other References:
COBAN, MUHAMMED ET AL.: "Support of independent sub-pictures", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG 16 WP 3, no. JCTVC-I0356, 17 April 2012 (2012-04-17) - 7 May 2012 (2012-05-07), Geneva, CH, pages 1 - 5, XP030112119
LEE, TAMMY ET AL.: "Simplification on tiles and slices", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG 16 WP3-, no. JCTVC-H0348, February 2012 (2012-02-01), San Jose, CA , USA, pages 1 - 10, XP030111375
FULDSETH, A.: "Replacing slices with tiles for high level parallelism", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT- VC) OF ITU-T SG 16 WP3, no. JCTVC-D227, 15 January 2011 (2011-01-15), Daegu, KR, pages 1 - 5, XP030008267
HANNUKSELA, MISKA M.: "On slices and tiles", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3, no. JVET-L0306, 25 September 2018 (2018-09-25), Macao, CN, pages 1 - 3, XP030193831
LEE, TAMMY ET AL.: "Simplification on tiles and slices", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG 16 WP3-, no. JCTVC-H0348, February 2012 (2012-02-01), San Jose, CA , USA, pages 1 - 10, XP030111375
FULDSETH, A.: "Replacing slices with tiles for high level parallelism", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT- VC) OF ITU-T SG 16 WP3, no. JCTVC-D227, 15 January 2011 (2011-01-15), Daegu, KR, pages 1 - 5, XP030008267
HANNUKSELA, MISKA M.: "On slices and tiles", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3, no. JVET-L0306, 25 September 2018 (2018-09-25), Macao, CN, pages 1 - 3, XP030193831
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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