fab-jul/imgcomp-cvpr

how to train a lower bit rate model

FanYanqi opened this issue · 2 comments

Excuse me. I'm confused with the configurations of training part.
I want to train a lower bit rate model such as bpp 0.2 or lower.
I used the ae_configs/cvpr/low directly or modified it by H_target = 2*0.1.
But after about 200000 iterations the average bpp of models on Kodak dataset are still about 0.35.
How can I train a lower bit rate model on Kodak dataset?
Thanks!

One thing you can try is set num_chan_bn to a lower value, such as num_chan_bn = 16. Note however that H_target only roughly upper bounds the bitrate on the training set, the actual bitrate will vary from testset to testset.

Sorry for reply late. As you've said, I set num_chan_bn = 8, H_target = 2*0.10 and trained a model test on Kodak with bpp: 0.152 and ms-ssim: 0.939. Thanks for your reply.