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skhu101 / GauHuman

Code for our CVPR'2024 paper "GauHuman: Articulated Gaussian Splatting from Monocular Human Videos"
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transform of normal #40

Closed JiatengLiu closed 4 months ago

JiatengLiu commented 4 months ago

Hi, I have some questions about how to transform normal map. I used a prediction network to get two normal maps of front and back, which should be opposite. I don't know how to correctly convert these normal lines under different poses to the world coordinate system, can you tell me? image image

skhu101 commented 4 months ago

I also do not have a particular idea. I have tried to get the normal image through gradients of sampled points in neural radiance fields. But it is a different setting.

JiatengLiu commented 4 months ago

Yes, I can only do this task in an approximate way, because ellipsoidal 3D Gaussians is not very friendly for geometry properties like normal.