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3DTopia / OpenLRM

An open-source impl. of Large Reconstruction Models
Apache License 2.0
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Fixed focal #25

Open shuangw98 opened 8 months ago

shuangw98 commented 8 months ago

Thanks for your great work! I noticed that you used a fixed focal length when rendering objaverse, which can cause the focal length of the input image to be inconsistent with the camera model. I’m curious why you didn’t use a random focal length.

ZexinHe commented 8 months ago

Hi,

Thanks for your interest!

We're using a fixed focal length so that training and inference would share this same fov setting and impose no extra need for GT camera parameters during inference. We haven't tried using a random focal length during training, but we suspect it to be unnecessary for models trained solely on Objaverse.

Plz feel free to comment.