Title:
IMAGE DECODING DEVICE, IMAGE DECODING METHOD, AND PROGRAM
Document Type and Number:
Japanese Patent JP2021052228
Kind Code:
A
Abstract:
To provide an image decoding device that can prevent degradation of subjective image quality by not applying a deblocking filter to sub-block boundaries to which PROF processing has been applied.SOLUTION: An image decoding device 200 includes an inter prediction unit 241 that is configured to determine the suitability of PROF processing for each block and to perform PROF processing for each sub-block into which the block is divided when PROF processing is applied and an in-loop filter processing unit 250 that is configured to determine the suitability of the deblocking filter for each block boundary and to decide not to apply the deblocking filter for a sub-block boundary of a block to which the PROF processing is applied.SELECTED DRAWING: Figure 14
Inventors:
UNNO KYOHEI
KAWAMURA KEI
NAITO HITOSHI
KAWAMURA KEI
NAITO HITOSHI
Application Number:
JP2019172136A
Publication Date:
April 01, 2021
Filing Date:
September 20, 2019
Export Citation:
Assignee:
KDDI CORP
International Classes:
H04N19/117; H04N19/139; H04N19/159; H04N19/176; H04N19/70; H04N19/86
Other References:
CHEN, JIANLE ET AL.: "Algorithm description for Versatile Video Coding and Test Model 6 (VTM 6)", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 15TH MEETING: GOTH, vol. JVET-O2002 (version 2), JPN6022027672, 10 September 2019 (2019-09-10), ISSN: 0004817656
CHEN, WEI ET AL.: "Non-CE9: Block Boundary Prediction Refinement with Optical Flow for DMVR", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 15TH MEETING: GOTH, vol. JVET-O0581 (version 1), JPN6020043501, 6 July 2019 (2019-07-06), ISSN: 0004817657
BROSS, BENJAMIN ET AL.: "Versatile Video Coding (Draft 6)", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 15TH MEETING: GOTH, vol. JVET-O2001 (version 14), JPN6020043504, 31 July 2019 (2019-07-31), ISSN: 0004817658
UNNO, KYOHEI ET AL.: "Non-CE5: Deblocking filter at PROF sub-block boundary", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 16TH MEETING: GENE, vol. JVET-P0547 (version 2), JPN6020043499, 7 October 2019 (2019-10-07), ISSN: 0004817659
LI, GUICHUN ET AL.: "Non-CE5: On deblocking on affine internal prediction sub-block edges", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 16TH MEETING: GENE, vol. JVET-P0441 (version 2), JPN6020043506, 25 September 2019 (2019-09-25), ISSN: 0004817660
CHEN, WEI ET AL.: "Non-CE9: Block Boundary Prediction Refinement with Optical Flow for DMVR", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 15TH MEETING: GOTH, vol. JVET-O0581 (version 1), JPN6020043501, 6 July 2019 (2019-07-06), ISSN: 0004817657
BROSS, BENJAMIN ET AL.: "Versatile Video Coding (Draft 6)", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 15TH MEETING: GOTH, vol. JVET-O2001 (version 14), JPN6020043504, 31 July 2019 (2019-07-31), ISSN: 0004817658
UNNO, KYOHEI ET AL.: "Non-CE5: Deblocking filter at PROF sub-block boundary", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 16TH MEETING: GENE, vol. JVET-P0547 (version 2), JPN6020043499, 7 October 2019 (2019-10-07), ISSN: 0004817659
LI, GUICHUN ET AL.: "Non-CE5: On deblocking on affine internal prediction sub-block edges", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 16TH MEETING: GENE, vol. JVET-P0441 (version 2), JPN6020043506, 25 September 2019 (2019-09-25), ISSN: 0004817660
Attorney, Agent or Firm:
Curries Patent Business Corporation