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MiZhenxing / GBi-Net

Codes for GBi-Net (CVPR2022)
https://mizhenxing.github.io/gbinet
MIT License
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classification or regression? #4

Closed DIVE128 closed 2 years ago

DIVE128 commented 2 years ago

Thanks for your great work. As for the depth generation, you choose argmax of classification instead of weighed operation of regression. Does it increase the risk to predict a wrong depth range in the early stage? What do you think about the choice of classification and regression in multi-view stereo.

MiZhenxing commented 2 years ago

Great question. Actually, the MVSNet uses regression and RMVSNet uses regression. And some other methods also have different choices. In our paper, we use a binary search pipeline so we naturally use classification. The possible risk of the wrong prediction is handled by ETB. If you want more discussion about the two kinds of methods, I recommend you to read the paper of this code UniMVSNet.