Title:
VIDEO CODING DEVICE AND DECODING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/191064
Kind Code:
A1
Abstract:
If resolution inverse-conversion is performed by selecting a model parameter suitable for an input video from a set of predetermined model parameters, video that is not suitable for a plurality of model parameters may become low-quality. This video coding device comprises: an image decoding device for decoding encoded data in which an image that has been subjected to resolution conversion and filter information for deriving a first model parameter are encoded; and a post-processing device which uses the image and filter information decoded by the image decoding device to perform conversion into the same resolution as that of an input image signal. The video coding device further comprises a synthesized information creating device for creating filter information for deriving the first model parameter, and an image coding device for coding an image pre-processed by resolution conversion and the like, and filter information created by the synthesized information creating device.
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Inventors:
SUZUKI TAKUYA
SASAKI EIICHI
CHUJOH TAKESHI
IKAI TOMOHIRO
ITOH NORIO
WATANABE HIROSHI (JP)
SASAKI EIICHI
CHUJOH TAKESHI
IKAI TOMOHIRO
ITOH NORIO
WATANABE HIROSHI (JP)
Application Number:
PCT/JP2022/009378
Publication Date:
September 15, 2022
Filing Date:
March 04, 2022
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
H04N19/117; H04N19/136; H04N19/70
Domestic Patent References:
| WO2019087905A1 | 2019-05-09 |
Other References:
T. CHUJOH, E. SASAKI, T. IKAI (SHARP): "AHG9/AHG11: Neural network based super resolution SEI", 20. JVET MEETING; 20201007 - 20201016; TELECONFERENCE; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), 8 October 2020 (2020-10-08), XP030289911
TAKUYA SUZUKI, EIICHI SASAKI, TAKESHI CHUJOH, TOMOHIRO IKAI, HIROSHI WATANABE: "P3-B-1 Coded Video Transmission using Super-Resolution and MPEG-NNR Deep Learning Metadata", 37TH SYMPOSIUM ON IMAGE CODING (PCSJ) AND THE 27TH SYMPOSIUM ON IMAGE MEDIA PROCESSING (IMPS); PCSJ/IMPS 2020; NOVEMBER 28-30, 2020, PCSJ/IMPS, JP, 17 November 2020 (2020-11-17) - 30 November 2020 (2020-11-30), JP, pages 1 - 2, XP009540051
TAKUYA SUZUKI, EIICHI SASAKI, TAKESHI CHUJOH, TOMOHIRO IKAI, HIROSHI WATANABE: "P3-B-1 Coded Video Transmission using Super-Resolution and MPEG-NNR Deep Learning Metadata", 37TH SYMPOSIUM ON IMAGE CODING (PCSJ) AND THE 27TH SYMPOSIUM ON IMAGE MEDIA PROCESSING (IMPS); PCSJ/IMPS 2020; NOVEMBER 28-30, 2020, PCSJ/IMPS, JP, 17 November 2020 (2020-11-17) - 30 November 2020 (2020-11-30), JP, pages 1 - 2, XP009540051
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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