Hello, I want to use the ply_export.py file provided in your code to directly generate a .ply point cloud file. However, the scales and rotation parameters in your code are expressed as covariance. How can I convert the covariance into scales and rotation and then output the ply file? - Githubissues

dcharatan / pixelsplat

[CVPR 2024 Oral, Best Paper Runner-Up] Code for "pixelSplat: 3D Gaussian Splats from Image Pairs for Scalable Generalizable 3D Reconstruction" by David Charatan, Sizhe Lester Li, Andrea Tagliasacchi, and Vincent Sitzmann

http://davidcharatan.com/pixelsplat/

MIT License

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Hello, I want to use the ply_export.py file provided in your code to directly generate a .ply point cloud file. However, the scales and rotation parameters in your code are expressed as covariance. How can I convert the covariance into scales and rotation and then output the ply file? #63

Closed chenkangjie1123 closed 6 months ago

chenkangjie1123 commented 6 months ago

Hello, I want to use the ply_export.py file provided in your code to directly generate a .ply point cloud file. However, the scales and rotation parameters in your code are expressed as covariance. How can I convert the covariance into scales and rotation and then output the ply file?

chenkangjie1123 commented 6 months ago

解决了哈

chenkangjie1123 commented 6 months ago

解决了哈

johnren-code commented 6 months ago

大佬，我想问一下你导出的点云有颜色吗？为什么我导出的点云没有颜色

chenkangjie1123 commented 6 months ago

大佬，我想问一下你导出的点云有颜色吗？为什么我导出的点云没有颜色

有颜色啊

johnren-code commented 6 months ago

大佬你是直接使用的原本的代码没有修改吗，那可能是我这边球谐系数的问题

chenkangjie1123 commented 6 months ago

我是直接在gaussian_adapter里面调用的ply_export.py

大佬你是直接使用的原本的代码没有修改吗，那可能是我这边球谐系数的问题

johnren-code commented 6 months ago

好的好的，谢谢大佬