X-3D: Explicit 3D Structure Modeling for Point Cloud Recognition

arXiv:2404.15010v1 Announce Type: new
Abstract: Numerous prior studies predominantly emphasize constructing relation vectors for individual neighborhood points and generating dynamic kernels for each vector and embedding these into high-dimensional spaces to capture implicit local structures. However, we contend that such implicit high-dimensional structure modeling approch inadequately represents the local geometric structure of point clouds due to the absence of explicit structural information. Hence, we introduce X-3D, an explicit 3D structure modeling approach. X-3D functions by capturing the explicit local structural …

arxiv cloud cs.cv modeling recognition type