Title:
デブロッキングフィルタ制御装置及びプログラム
Document Type and Number:
Japanese Patent JP7357721
Kind Code:
B2
Abstract:
A deblocking filter control device that controls a deblocking filter process performed on a decoded image includes: a parameter deriver configured to derive a parameter value that controls a filter strength in the deblocking filter process; and a parameter transformer configured to output a transformed parameter value by transforming the parameter value based on an input bit depth that is a bit depth of the video signal, wherein when the input bit depth is smaller than a predetermined bit depth, the parameter transformer is configured to output the transformed parameter value by adding an offset value to the parameter value and making a bit shift of a result of the addition, and the parameter transformer is configured to change the offset value based on the input bit depth.
Inventors:
Shunsuke Iwamura
Shinpei Nemoto
Atsuro Ichigaya
Shinpei Nemoto
Atsuro Ichigaya
Application Number:
JP2022084865A
Publication Date:
October 06, 2023
Filing Date:
May 24, 2022
Export Citation:
Assignee:
Japan Broadcasting Corporation
International Classes:
H04N19/117; H04N19/136; H04N19/176; H04N19/86
Foreign References:
| WO2013064654A1 |
Other References:
Benjamin Bross et al.,Versatile Video Coding (Draft 8),Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-Q2001-vE (version 15),17th Meeting: Brussels, BE,2019年03月,pp.345-351
K. Andersson and J. Enhorn,Non-CE5: Deblocking tC table defined for 10-bit video,Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-O0159,15th Meeting: Gothenburg, SE,2019年06月,pp.1-5
Shunsuke Iwamura, Shimpei Nemoto and Atsuro Ichigaya,Cleanup of tC value derivation process for deblocking filter,Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-R0130,18th Meeting: by teleconference,2020年04月,pp.1-3
K. Andersson and J. Enhorn,Non-CE5: Deblocking tC table defined for 10-bit video,Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-O0159,15th Meeting: Gothenburg, SE,2019年06月,pp.1-5
Shunsuke Iwamura, Shimpei Nemoto and Atsuro Ichigaya,Cleanup of tC value derivation process for deblocking filter,Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-R0130,18th Meeting: by teleconference,2020年04月,pp.1-3
Attorney, Agent or Firm:
Curie's Patent Attorney Corporation