Topological Data Analysis-friendly CAD/3D point cloud dataset request Hi everyone, I’m looking for a suitable **3D point cloud dataset** — or a **CAD/mesh dataset from which I can sample point clouds** — for a small research/report project. The goal is to compare **Topological Data Analysis (TDA)** as a preprocessing / feature extraction method against more standard 3D point cloud preprocessing methods, under different perturbations such as: * Gaussian jitter / noise * random point deletion / subsampling * small deformations * scaling / rotations * outliers or other synthetic corruptions The comparison would be based on the **classification accuracy of a downstream model** after preprocessing. I do not necessarily need many classes. Even a **binary classification dataset** would be enough. What matters most is that the classes should differ in their **topological structure**, ideally in the number of holes / loops / cavities, so that TDA has a meaningful signal to detect.…