Title:
IMAGE PROCESSING DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2021/149812
Kind Code:
A1
Abstract:
The present disclosure relates to an image processing device and method that make it possible to suppress an increase in the load of inverse adaptive color transform process, while suppressing an increase in distortion of coefficient data after the inverse adaptive color transform. Coefficient data obtained by reversible adaptive color transform is clipped at a level based on the bit depth of the coefficient data, and the coefficient data clipped at the level is subjected to the reversible inverse adaptive color transform. The present disclosure is applicable to, for example, an image processing device, an image coding device, an image decoding device, a transmit device, a receive device, a transmit/receive device, an information processing device, an image capture device, a playback device, an electronic apparatus, an image processing method, an information processing method and the like.
Inventors:
TSUKUBA TAKESHI (JP)
Application Number:
PCT/JP2021/002296
Publication Date:
July 29, 2021
Filing Date:
January 22, 2021
Export Citation:
Assignee:
SONY GROUP CORP (JP)
International Classes:
H04N19/132; H04N19/136; H04N19/186
Domestic Patent References:
| WO2016123232A1 | 2016-08-04 |
Other References:
XIU, XIAOYU ET AL.: "AHG16: Clipping residual samples for ACT", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, JVET-Q0513_R2, 17TH MEETING, 14 January 2020 (2020-01-14), Brussels, BE, pages 1 - 4, XP030223795
XIU (KWAI) X; Y-W CHEN; T-C MA; H-J JHU; WANG (KWAI) X; ZHAO (LGE) J; HENDRY; PALURI S; S-H KIM (LGE); ZHU (BYTEDANCE) W; XU J; ZH: "ACT colour conversion for both lossless and lossy coding", 17. JVET MEETING; 20200107 - 20200117; BRUSSELS; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), no. JVET-Q0510 ; m52109, 12 January 2020 (2020-01-12), Brussels, BE, pages 1 - 8, XP030223774
XIU, XIAOYU ET AL.: "Mismatch on clipping input residuals to IACT", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, JVET-R0329, 18TH MEETING: BY TELECONFERENCE, April 2020 (2020-04-01), pages 1 - 2, XP030286521
X. XIU (KWAI), Y.-W. CHEN, T.-C. MA, H.-J. JHU, X. WANG (KWAI), J. ZHAO (LGE), S.-H. KIM (LGE), J. XU (BYTEDANCE), L. ZHANG, W. ZH: "On clipping input residuals to IACT", 130. MPEG MEETING; 20200420 - 20200424; ALPBACH; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11), no. m53413 ; JVET-R0355, 18 April 2020 (2020-04-18), pages 1 - 5, XP030286913
BENJAMIN BROSSJIANLE CHENSHAN LIUYE-KUI WANG: "Versatile Video Coding (Draft 7", JVET-P2001-VE, JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 16TH MEETING:FENEVA, CH
JIANLE CHENYAN YESEUNG HWAN KIM: "Algorithm description for Versatile Video Coding and Test Model 7 (VTM 7", JVET-P2002-VL, JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 16TH MEETING:GENEVA, CH
XIAOYU XIUYI-WEN CHENTSUNG-CHUAN MAHONG-JHENG JHUXIANGLIN WANGJIE ZHAOHENDRY, SEETHAL PALURISEUNG HWAN KIMWEIJIA ZHUJIZHENG XU: "ACT colour conversion for both lossless and lossy coding", JVET-Q0510_R2, JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 17TH MEETING:BRUSSELS, BE
XIAOYU XIUYI-WEN CHENTSUNG-CHUAN MAHONG-JHENG JHUXIANGLIN WANG: "AHG16:Clipping residual samples for ACT", JVET-Q0513_R2, JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 17TH MEETING:BRUSSELS, BE
"Advanced video coding for generic audiovisual services", RECOMMENDATION ITU-T H.264, April 2017 (2017-04-01)
See also references of EP 4087242A4
XIU (KWAI) X; Y-W CHEN; T-C MA; H-J JHU; WANG (KWAI) X; ZHAO (LGE) J; HENDRY; PALURI S; S-H KIM (LGE); ZHU (BYTEDANCE) W; XU J; ZH: "ACT colour conversion for both lossless and lossy coding", 17. JVET MEETING; 20200107 - 20200117; BRUSSELS; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), no. JVET-Q0510 ; m52109, 12 January 2020 (2020-01-12), Brussels, BE, pages 1 - 8, XP030223774
XIU, XIAOYU ET AL.: "Mismatch on clipping input residuals to IACT", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, JVET-R0329, 18TH MEETING: BY TELECONFERENCE, April 2020 (2020-04-01), pages 1 - 2, XP030286521
X. XIU (KWAI), Y.-W. CHEN, T.-C. MA, H.-J. JHU, X. WANG (KWAI), J. ZHAO (LGE), S.-H. KIM (LGE), J. XU (BYTEDANCE), L. ZHANG, W. ZH: "On clipping input residuals to IACT", 130. MPEG MEETING; 20200420 - 20200424; ALPBACH; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11), no. m53413 ; JVET-R0355, 18 April 2020 (2020-04-18), pages 1 - 5, XP030286913
BENJAMIN BROSSJIANLE CHENSHAN LIUYE-KUI WANG: "Versatile Video Coding (Draft 7", JVET-P2001-VE, JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 16TH MEETING:FENEVA, CH
JIANLE CHENYAN YESEUNG HWAN KIM: "Algorithm description for Versatile Video Coding and Test Model 7 (VTM 7", JVET-P2002-VL, JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 16TH MEETING:GENEVA, CH
XIAOYU XIUYI-WEN CHENTSUNG-CHUAN MAHONG-JHENG JHUXIANGLIN WANGJIE ZHAOHENDRY, SEETHAL PALURISEUNG HWAN KIMWEIJIA ZHUJIZHENG XU: "ACT colour conversion for both lossless and lossy coding", JVET-Q0510_R2, JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 17TH MEETING:BRUSSELS, BE
XIAOYU XIUYI-WEN CHENTSUNG-CHUAN MAHONG-JHENG JHUXIANGLIN WANG: "AHG16:Clipping residual samples for ACT", JVET-Q0513_R2, JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 17TH MEETING:BRUSSELS, BE
"Advanced video coding for generic audiovisual services", RECOMMENDATION ITU-T H.264, April 2017 (2017-04-01)
See also references of EP 4087242A4
Attorney, Agent or Firm:
NISHIKAWA Takashi et al. (JP)
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