Title:
再構成関数の補間
Document Type and Number:
Japanese Patent JP7094451
Kind Code:
B2
Abstract:
Methods and systems for generating an interpolated reshaping function for the efficient coding of high-dynamic range images are provided. The interpolated reshaping function is constructed based on a set of pre-computed basis reshaping functions. Interpolation schemes are derived for pre-computed basis reshaping functions represented as look-up tables, multi-segment polynomials, or matrices of coefficients in a multivariate, multi-regression representation. Encoders and decoders using asymmetric reshaping and interpolated reshaping functions for mobile applications are also presented.
Inventors:
Kadu, Harshad
Sung, Chin
Soo, Gwan-Mean
Sung, Chin
Soo, Gwan-Mean
Application Number:
JP2021531632A
Publication Date:
July 01, 2022
Filing Date:
November 27, 2019
Export Citation:
Assignee:
Dolby Laboratories Licensing Corporation
International Classes:
H04N19/85; H04N19/46; (IPC1-7): C07D317/72; C07D407/04; C07D339/06; C07D309/06
Foreign References:
| WO2017165494A2 |
Other References:
MINOO, K. et al.,Description of the reshaper parameters derivation process in ETM reference software,Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11 23rd Meeting: San Diego, USA, 19-26 February 2016, [JCTVC-W0031],JCTVC-W0031 (version 1),ITU-T,2016年01月11日,: JCTVC-W0031-ETM_ReshaperDescription.docx: pp. 1-17
Attorney, Agent or Firm:
Okuda Seiji
Kita Osamu
Toru Kawakita
Shigeyasu Murase
Kita Osamu
Toru Kawakita
Shigeyasu Murase