HavenFeng/photometric_optimization

Perspective projection

SavvaI opened this issue · 1 comments

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!

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).