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TR 26.855
Study on Film Grain Synthesis

3GPP‑Page   eToC↓   LoFT↓   CONTENT →
V19.0.0 (Wzip)  2024/09  74 p.
Rapporteur:
Dr. Lee, Brian
Dolby Germany GmbH

essential Table of Contents for  TR 26.855  Word version:  19.0.0

each title links to the equivalent title in the CONTENT
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List of Figures and Tables

Table 4.1Noise Variants used
Figure 5.1Main tool window
Figure 5.2Film grain parameters used for CrowdRun in JVET-AD0382 [7] (Luma, Cb, and Cr from top to bottom and left to right)
Figure 5.3Film grain experimental tool chain
Figure 6.1Example intervals and parameters
Figure 6.2Example crops of a 1963 35mm negative film scan (around 7500 ppi / 150 lpm)
Figure 6.3Grain variability on an example film (at around 3000 dpi / 60 lpm) Left: luma - Right: luma grain
Figure A.1Rate distortion performance for all variants for the Tears of Steel "ToS" Scene 004
Figure A.2Rate distortion performance for all variants for the Tears of Steel "ToS" Scene 021
Figure A.3Rate distortion performance for all variants for the Tears of Steel "ToS" Scene 023
Figure A.4Rate distortion performance for all variants for the Tears of Steel "ToS" Scene 029
Figure A.5Rate distortion performance for all variants for the Tears of Steel "ToS" Scene 030
Figure A.6Rate distortion performance for all variants for the Tears of Steel "ToS" Scene 044
Figure A.7Rate distortion performance for all variants for the Tears of Steel "ToS" Scene 046
Figure A.8Rate distortion performance for all variants for the Tears of Steel "ToS" Scene 062
Figure A.9Rate distortion performance for all variants for the Tears of Steel "ToS" Scene 101
Figure A.10Rate distortion performance for all variants for the Tears of Steel "ToS" Scene 135
Figure A.11Rate distortion performance for all variants for the Tears of Steel "ToS" Scene 136
Figure A.12Avg PSNR vs. Avg. Bitrate for all variants for the Tears of Steel "ToS" Scene 004
Figure A.13Avg PSNR vs. Avg. Bitrate for all variants for the Tears of Steel "ToS" Scene 021
Figure A.14Avg PSNR vs. Avg. Bitrate for all variants for the Tears of Steel "ToS" Scene 023
Figure A.15Avg PSNR vs. Avg. Bitrate for all variants for the Tears of Steel "ToS" Scene 029
Figure A.16Avg PSNR vs. Avg. Bitrate for all variants for the Tears of Steel "ToS" Scene 030
Figure A.17Avg PSNR vs. Avg. Bitrate for all variants for the Tears of Steel "ToS" Scene 044
Figure A.18Avg PSNR vs. Avg. Bitrate for all variants for the Tears of Steel "ToS" Scene 046
Figure A.19Avg PSNR vs. Avg. Bitrate for all variants for the Tears of Steel "ToS" Scene 062
Figure A.20Avg PSNR vs. Avg. Bitrate for all variants for the Tears of Steel "ToS" Scene 101
Figure A.21Avg PSNR vs. Avg. Bitrate for all variants for the Tears of Steel "ToS" Scene 135
Figure A.22Avg PSNR vs. Avg. Bitrate for all variants for the Tears of Steel "ToS" Scene 136
Figure A.23Avg PSNR vs. Avg. complexity for all variants for the Tears of Steel "ToS" Scene 004
Figure A.24Avg PSNR vs. Avg. complexity for all variants for the Tears of Steel "ToS" Scene 021
Figure A.25Avg PSNR vs. Avg. complexity for all variants for the Tears of Steel "ToS" Scene 023
Figure A.26Avg PSNR vs. Avg. complexity for all variants for the Tears of Steel "ToS" Scene 029
Figure A.27Avg PSNR vs. Avg. complexity for all variants for the Tears of Steel "ToS" Scene 030
Figure A.28Avg PSNR vs. Avg. complexity for all variants for the Tears of Steel "ToS" Scene 044
Figure A.29Avg PSNR vs. Avg. complexity for all variants for the Tears of Steel "ToS" Scene 046
Figure A.30Avg PSNR vs. Avg. complexity for all variants for the Tears of Steel "ToS" Scene 062
Figure A.31Avg PSNR vs. Avg. complexity for all variants for the Tears of Steel "ToS" Scene 101
Figure A.32Avg PSNR vs. Avg. complexity for all variants for the Tears of Steel "ToS" Scene 135
Figure A.33Avg PSNR vs. Avg. complexity for all variants for the Tears of Steel "ToS" Scene 136
Table A.1Possible Low Complexity film grain noise variants for Tears of Steel
Table A.2Possible Moderate Complexity film grain noise variants for Tears of Steel
Table A.3Possible High Complexity film grain noise variants for Tears of Steel
Figure A.34Rate distortion performance for all variants for the EggMixing
Figure A.35Rate distortion performance for all variants for the ForestFocus
Figure A.36Rate distortion performance for all variants for the ForestZoom
Figure A.37Rate distortion performance for all variants for the GoldenGatePan
Figure A.38Rate distortion performance for all variants for the GoldenGateBridge
Figure A.39Rate distortion performance for all variants for the Hiker
Figure A.40Rate distortion performance for all variants for the IntoTheWoods
Figure A.41Rate distortion performance for all variants for the TwirlingUmbrella
Figure A.42Avg PSNR vs. Avg. Bitrate for all variants for the EggMixing
Figure A.43Avg PSNR vs. Avg. Bitrate for all variants for the ForestFocus
Figure A.44Avg PSNR vs. Avg. Bitrate for all variants for the ForestZoom
Figure A.45Avg PSNR vs. Avg. Bitrate for all variants for the GoldenGatePan
Figure A.46Avg PSNR vs. Avg. Bitrate for all variants for the GoldenGateBridge
Figure A.47Avg PSNR vs. Avg. Bitrate for all variants for the Hiker
Figure A.48Avg PSNR vs. Avg. Bitrate for all variants for the IntoTheWood
Figure A.49Avg PSNR vs. Avg. Bitrate for all variants for TwirlingUmbrella
Figure A.50Avg PSNR vs. Avg. complexity for all variants for the EggMixing
Figure A.51Avg PSNR vs. Avg. complexity for all variants for the ForestFocus
Figure A.52Avg PSNR vs. Avg. complexity for all variants for the ForestZoom
Figure A.53Avg PSNR vs. Avg. complexity for all variants for the GoldenGatePan
Figure A.54Avg PSNR vs. Avg. complexity for all variants for the GoldenGateBridge
Figure A.55Avg PSNR vs. Avg. complexity for all variants for the Hiker
Figure A.56Avg PSNR vs. Avg. complexity for all variants for the IntoTheWoods
Figure A.57Avg PSNR vs. Avg. complexity for all variants for the TwirlingUmbrella
Table A.4Possible Low Complexity film grain noise variants for Gregory
Table A.5Possible Moderate Complexity film grain noise variants for Gregory sequences
Table A.6Possible High Complexity film grain noise variants for Gregory sequences
Figure B.1Loading a test video file
Figure B.2Example decoded video at POC #0, #16, #8, #11
Figure B.3Example of how grain synthesis hides impaired grain - Left: decoded; right: decoded + grain synthesis
Figure B.4Selecting the test frame using the slider
Figure B.5Adjusting log2ScaleFactor, grain strength and size
Figure B.6Tuning grain strengt - Left: original - Middle: synthesis, too low - Right: synthesis, too strong
Figure B.7Tuning grain size - Left: original - Right: synthesis, too large
Figure B.8Splitting interval and adjusting focus on a dark area
Figure B.9Focusing on a dark area
Figure B.10Tuning grain on a dark area - Left: original - Middle: original grain - Right: dark area tuned
Figure B.11Parameter adjustment for dark area
Figure C.1HEVC workflow without film grain
Figure C.2HEVC film grain modeling and synthesis workflow
Table C.1.3-1
Table C.1.3-2
Figure C.1.4.2-1BQTerrace FGS v/s no_FGS
Figure C.1.4.3-1OldTownCross FGS v/s no_FGS
Figure C.1.4.4-1InToTree FGS v/s no_FGS
Figure C.1.5.1-1CrowdRun-4K FGS v/s no_FGS
Figure C.1.5.2-1Scene_004_FG_03 (FGS v/s no_FGS)
Figure C.1.5.2-2Scene_004_FG_22 (FGS v/s no_FGS)
Figure C.1.5.2-3Scene_044_FG_03 (FGS v/s no_FGS)
Figure C.1.5.2-4Scene_044_FG_22 (FGS v/s no_FGS)
Figure C.1.5.2-5Scene_062_FG_16 (FGS v/s no_FGS)
Figure C.1.5.2-6Scene_062_FG_24 (FGS v/s no_FGS)
Figure C.1.5.2-7Scene_101_FG_21 (FGS v/s no_FGS)
Figure C.1.5.2-8Scene_101_FG_24 (FGS v/s no_FGS)
Figure C.2.1HEVC workflow for film grain estimation for masking coding artifacts
Figure C.2.2-1
Table C.2.2-1

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