What’s new in Cool-chic 3.4?

Cool-chic 3.4 introduces an enhanced upsampling with more expressive convolutive filters. More information are available in the upsampling documentation

New 3.4 version offers the following improvements:

  • New and improved latent upsampling module

    • Leverage symmetric and separable convolution kernels to reduce complexity & parameters count

    • Learn two filters per upsampling step instead of one for all upsampling steps

  • 1% to 5% rate reduction for the same image quality

  • 30% complexity reduction using a smaller Auto-Regressive Module

    • From 2000 MAC / decoded pixel to 1300 MAC / decoded pixel

    • 10% faster decoding speed

Check-out the release history to see previous versions of Cool-chic.

Attention

🛑 Cool-chic 3.4 temporarily disables video coding. If you really want to compress videos you can

  • Go back to 3.1: git clone --branch v3.1 https://github.com/Orange-OpenSource/Cool-Chic.git

  • Wait for Cool-chic 4.0 for better and faster video coding 😉.