Gsoc2023 constraint based point cloud denoising

[soesau]

William Wen's GSoC 2023 Submission

Mentor: Martin Skrodzki Co-Mentor: Sven Oesau

Implementation of the paper "Constraint-based Point Set Denoising using Normal Voting Tensor and Restricted Quadratic Error Metrics"

Also see Issue #7748

Todo

• [ ] Add a section in the User Manual
• [ ] Add a sentence in the Implementation History

[afabri]

Eigen seems to be a hard wired dependency. Is there an existing solver traits class we could use?