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HavenFeng / photometric_optimization

Photometric optimization code for creating the FLAME texture space and other applications
MIT License
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Perspective projection #6

Closed SavvaI closed 3 years ago

SavvaI commented 4 years ago

Are there any specific reasons for you using orthogonal projection instead of perspective? I have tried reconstruction of the head from the photo with your code, and it doesn't align well with the ground truth point cloud obtained through photogrammetry. I suspect the problem is with the orthogonal projection. So, my question is, can I expect it to work after replacing an ortho projection with the perspective one. Thanks for the great work!

HavenFeng commented 3 years ago

Hi, there's no specific reason for choosing the orthogonal projection. In general, perspective projection requires intrinsic parameters, however, there's nowhere to get such information for in-the-wild scenarios. (people usually set a big focal length, which leads to almost no perspective effects).