Question about focal length used in TnT-ViewCrafter (vs official 0.7·W recommendation) #94
Description
Hi, thank you for releasing the TnT-ViewCrafter evaluation data!
I have a question regarding the camera intrinsics (focal length) used in the released Tanks and Temples (TnT) ViewCrafter.
According to the official Tanks and Temples documentation, focal length is recommended as fx = fy = 0.7 * W. However, I noticed that the focal length in the released transform.json does not match 0.7 * W.
Could you please clarify:
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How is the focal length for TnT-ViewCrafter obtained?
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Which focal length should be used when training or reproducing results on TnT?
Thank you for your assistance!