Champion Data

Followings are obtained from WBVC2018 champions data (generated image, 1920x1080-size) by WBVC2019 codec (VTM4.0-based) in ascending order of Y-BD-Rate gains of four test sequences (aquafish_wv_1920x1080, dish1_wv_1920x1080, kiban1_wv_1920x1080 and pebble_wv_1920x1080).

(-14.08%, -48.19%, -53.36%, -53.78%, average -42.35%; unrealistic ideal case: using still water picture as the additional first frame)

1. -11.59%, -40.37%, -38.39%, -49.90%, average: -35.06%; Team-name: Mizuho Information & Research Institute
2. -7.42%, -37.61%, -38.72%, -50.46%, average: -33.55%; Team-name: USTC-VC
3. -9.26%, -31.16%, -38.01%, -43.49%, average: -30.48%; Team-name: Backward Sprint

Followings are 512x512-size (cropped) coding results using the same champions data. Similar tendency as 1920x1080-size coding is observed.

(-19.97%, -47.45%, -54.12%, -49.16%, average -42.68%; unrealistic ideal case: using still water picture as the additional first frame)

1. -18.53%, -38.18%, -40.77%, -46.14%, average -35.90%; Team-name: Mizuho Information & Research Institute
2. -9.39%, -39.53%, -40.12%, -47.78%, average -34.21%; Team-name: USTC-VC
3. -11.76%, -26.47%, -42.16%, -38.73%, average -29.78%; Team-name: Backward Sprint

FYI WBVC2018 results below (VTM1.1-based, 1920x1080 size, 2018 final ranking champions)

1. -10.08%, -32.93%, -31.25%, -46.65%, average -30.23%; Team-name: Mizuho Information & Research Institute, Algorithm description
2. -4.95%, -29.47%, -31.01%, -46.16%, average -27.90%; Team-name: USTC-VC
3. -6.71%, -25.34%, -30.65%, -39.94%, average -25.66%; Team-name: Backward Sprint, Algorithm description