Title:
METHOD AND DEVICE FOR EFFICIENTLY APPLYING TRANSFORM SKIP MODE TO DATA BLOCK
Document Type and Number:
WIPO Patent Application WO/2020/185027
Kind Code:
A1
Abstract:
Disclosed are a method and device for efficiently applying a transform skip mode to a transform block. A video decoding device according to one embodiment of the present invention: determines, on the basis of transform skip information related to a current block decoded from a bitstream, whether a subblock for which a transform was skipped and one or more subblocks to which a transform was applied are included in the current block; and when it is determined that the subblock for which a transform was skipped and the one or more subblocks to which a transform was applied are included in the current block, uses a decoding procedure without an inverse transform to decode a first related residual subblock for the subblock for which a transform was skipped, and uses a decoding procedure including an inverse transform to decode one or more second related residual subblocks for the one or more subblocks to which a transform was applied. The first residual subblock and the one or more second residual subblocks are added to a prediction block to reconstruct the current block.
Inventors:
KANG JE WON (KR)
PARK SANG HYO (KR)
PARK SEUNG WOOK (KR)
LIM WHA PYEONG (KR)
PARK SANG HYO (KR)
PARK SEUNG WOOK (KR)
LIM WHA PYEONG (KR)
Application Number:
PCT/KR2020/003496
Publication Date:
September 17, 2020
Filing Date:
March 13, 2020
Export Citation:
Assignee:
HYUNDAI MOTOR CO LTD (KR)
KIA MOTORS CORP (KR)
UNIV EWHA IND COLLABORATION (KR)
KIA MOTORS CORP (KR)
UNIV EWHA IND COLLABORATION (KR)
International Classes:
H04N19/119; H04N19/176; H04N19/61; H04N19/625; H04N19/70
Foreign References:
| KR20180085526A | 2018-07-27 | |||
| KR20180001485A | 2018-01-04 |
Other References:
BROSS, B. ET AL.: "Non-CE8: Unified Transform Type Signalling and Residual Coding for Transform Skip", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11. JVET-M0464-V4. 13TH MEETING, 18 January 2019 (2019-01-18), Marrakech, MA., pages 1 - 13, XP030200509, Retrieved from the Internet [retrieved on 20200528]
ZHAO, XIN ET AL.: "CE6 related: Unification of Transform Skip mode and MTS", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11. JVET-M0501-V2. 13TH MEETING, 18 January 2019 (2019-01-18), Marrakech, MA., pages 1 - 5, XP030200687, Retrieved from the Internet [retrieved on 20200528]
DE -LUXAN-HERNANDEZ, SANTIAGO ET AL.: "CE3: Intra Sub-Partitions Coding Mode (Tests 1.1.1 and 1.1.2)", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11. JVET-M0102-V5. 13TH MEETING, 18 January 2019 (2019-01-18), Marrakech, MA., pages 1 - 9, XP030200174, Retrieved from the Internet [retrieved on 20200528]
ZHAO, XIN ET AL.: "CE6 related: Unification of Transform Skip mode and MTS", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11. JVET-M0501-V2. 13TH MEETING, 18 January 2019 (2019-01-18), Marrakech, MA., pages 1 - 5, XP030200687, Retrieved from the Internet
DE -LUXAN-HERNANDEZ, SANTIAGO ET AL.: "CE3: Intra Sub-Partitions Coding Mode (Tests 1.1.1 and 1.1.2)", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11. JVET-M0102-V5. 13TH MEETING, 18 January 2019 (2019-01-18), Marrakech, MA., pages 1 - 9, XP030200174, Retrieved from the Internet
Attorney, Agent or Firm:
LEE, Chulhee (KR)
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