Weichen Dai

Robust Global Structure-from-Motion via View Graph Pruning

Structure-from-Motion (SfM) aims to estimate camera poses and reconstruct 3D structures from a collection of unordered images. Compared with incremental SfM, global SfM achieves better scalability by jointly estimating camera poses based on a view graph constructed from pairwise correspondences. However, its performanc...

Bridging Static Images and Dynamic Brain Signal for Visual Decoding

Closed-Form Convolution for physically-accurate defocus in Gaussian Splatting

Recent advancements in 3D Gaussian Splatting (3DGS) have achieved impressive photorealism; however, its foundational assumption of perfectly sharp, all-in-focus imagery often breaks down in real-world scenarios. Lens-induced defocus blur, common in natural captures, can significantly degrade reconstruction quality. Whi...