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aipixel / GPS-Gaussian

[CVPR 2024 Highlight] The official repo for “GPS-Gaussian: Generalizable Pixel-wise 3D Gaussian Splatting for Real-time Human Novel View Synthesis”

Home Page:https://shunyuanzheng.github.io/GPS-Gaussian

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How to get good calibration

ZhenhuiL1n opened this issue · comments

commented

Hi,

When I was reproducing the results with my data, I also found the method very sensitive to the calibrated radius w2c[2,3]. I want to ask

  1. what is a good method/tool to calibrate the cameras?
  2. how many cameras do we need to get a good calibration?

Thanks!!

commented

Hi, @ZhenhuiL1n , sorry for my late reply.

The GPS-Gaussian is sensitive to both the radius and the length of camera baseline, since the training is data identical to the targeting hardware setup.
We use Zhang's calibration method to calibrate all cameras concurrently. But, I don't think the quality of calibration is related to the number of cameras. We have used the same method to successfully calibrate 4-16 cameras.