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JOP-Lee / READ

AAAI2023，implementation of "READ: Large-Scale Neural Scene Rendering for Autonomous Driving", the experimental results are significantly better than Nerf-based methods
https://github.com/JOP-Lee/READ-Large-Scale-Neural-Scene-Rendering-for-Autonomous-Driving
GNU General Public License v2.0
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About the meaning of proj_matrix #36

Closed Tsianmy closed 1 year ago

Tsianmy commented 1 year ago

Hi, I wonder what does proj_matrix do to the points (especially col 3 and col 4) and why do not use intrinsic matrix to project the points directly proj: 2 fx / w, 0, 1 - 2 cx / w, 0 0, 2 fy / h, 2 cy / h - 1, 0 0, 0, (zfar + znear) / (znear - zfar), 2 zfar znear / (znear - zfar) 0, 0, -1, 0

Sylvia6 commented 1 year ago

We need to ajust the intrinstics matrix into the OpenGL format（using the ndc coordinates）, the more infomations you can read from here, note in GL_PROJECTION part