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nerfstudio-project / nerfacc

A General NeRF Acceleration Toolbox in PyTorch.
https://www.nerfacc.com/
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Projecting occupancy grid sampled points back to image space #254

Open Fortunanto opened 10 months ago

Fortunanto commented 10 months ago

Hi! i'm attempting to use nerfacc with pixelnerf, and for that usage, i want to be able to first, generate an occupancy grid of a general scene, and then, sample points on it and project them back to an image space. i'm finding it difficult understanding how to best project those points to get the appropriate points in the images planes. is there any guide on what transformation occurs when the points are "squished" to be in the aabb region?

Thanks!