TY - JOUR
T1 - Returning Greatness to Film Grain
T2 - Introducing AV1-Compatible Film Grain Modeling for Existing HEVC-Based Video Codecs
AU - Grois, Dan
AU - Giladi, Alex
AU - Guionnet, Thomas
AU - Burnichon, Thomas
AU - Tverdokhleb, Nikolay
AU - Raulet, Mickael
N1 - Publisher Copyright:
© 2002 Society of Motion Picture and Television Engineers, Inc.
PY - 2024/1/1
Y1 - 2024/1/1
N2 - Film grain is spatially random in nature, while its physical size can also vary. In addition, film grain is independent in a temporal domain, thereby making it inherently difficult to compress. Therefore, to improve a video coding gain, the film grain is removed prior to encoding, and then added back after decoding at the post-processing stage, as is currently implemented in the Alliance for Open Media (AOM) AV1 coding scheme. In this work, the AV1-compatible film grain modeling for the High-Efficiency Video Coding (HEVC)-based video codecs has been carried out to utilize the existing AV1 film grain post-processing support efficiently. This is done by providing estimated film grain parameters within the International Telecommunication Union-Telecommunication (ITU-T) Recommendation T.35 (ITU-T T.35) Supplemental Enhancement Information (SEI) message. According to extensive experimental results conducted on popular cinematic content, significant bitrate savings are achieved.
AB - Film grain is spatially random in nature, while its physical size can also vary. In addition, film grain is independent in a temporal domain, thereby making it inherently difficult to compress. Therefore, to improve a video coding gain, the film grain is removed prior to encoding, and then added back after decoding at the post-processing stage, as is currently implemented in the Alliance for Open Media (AOM) AV1 coding scheme. In this work, the AV1-compatible film grain modeling for the High-Efficiency Video Coding (HEVC)-based video codecs has been carried out to utilize the existing AV1 film grain post-processing support efficiently. This is done by providing estimated film grain parameters within the International Telecommunication Union-Telecommunication (ITU-T) Recommendation T.35 (ITU-T T.35) Supplemental Enhancement Information (SEI) message. According to extensive experimental results conducted on popular cinematic content, significant bitrate savings are achieved.
KW - AOM
KW - AV1
KW - CODING EFFICIENCY
KW - FILM GRAIN
KW - H.265
KW - HEVC
KW - VIDEO COMPRESSION
UR - http://www.scopus.com/inward/record.url?scp=85185220375&partnerID=8YFLogxK
U2 - 10.5594/JMI.2024/JUNZ2729
DO - 10.5594/JMI.2024/JUNZ2729
M3 - Article
AN - SCOPUS:85185220375
SN - 1545-0279
VL - 133
SP - 40
EP - 50
JO - SMPTE Motion Imaging Journal
JF - SMPTE Motion Imaging Journal
IS - 1
ER -