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Coarse-To-Fine Deep Video Coding With Hyperprior-Guided Mode Prediction

CVPR 2022 · Video › Video segmentation and tracking · approach: Learned video compression · 106 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Replace single-scale compensation with coarse-to-fine motion compensation (ablation)FVC(re-imp) · HEVC Class EPSNR: +0.3dB at 0.08bppHelped
Add hyperprior-guided adaptive motion compression (HAMC) (ablation)C2F · HEVC Class EPSNR: +0.6dB at 0.03bppHelped
Add hyperprior-guided adaptive residual compression (HARC) along with C2F and HAMC (ablation)C2F+HAMC · HEVC Class EPSNR: outperforms the baseline FVC(re-imp) by 1.2dB at 0.03bppHelped
Use C2F motion compensation instead of single-scale compensation (ablation)FVC(re-imp) motion compensation · HEVC Class B motion compensation visualizationPSNR: improved by 1.7dB with similar bit-rate costHelped
Use C2F motion compensation (ablation)FVC(re-imp) · HEVC Class E motion compensationPSNR: improved by 1.14dB, while costing similar bppsHelped
Add HAMC and HARC to DVC (ablation)DVC · MCL-JCVPSNR: 0.5dB improvement at 0.1bppHelped
Use the complete C2F+HAMC+HARC framework instead of basic C2F (ablation)C2F · 1920×1080 inferencespeed: 3.43fps -> 3.41fpsNo clear effect
Use the proposed method instead of H.265(HM)Video compression · Average of HEVCBDBR (%): 18.58 -> -7.39Helped
Use the proposed method instead of H.265(HM)Video compression · HEVC Class CBD-PSNR (dB): Ours -0.42Hurt
Use the proposed method instead of H.265(HM)Video compression · HEVC Class B, Class C, Class D, Class E, UVG and MCL-JCVBD-PSNR (dB): HEVC Class B 0.37; HEVC Class C -0.42; HEVC Class D 0.04; HEVC Class E 0.25; UVG 0.21; MCL-JCV 0.09Mixed

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