Photometric Mesh Optimization for Video-Aligned 3D Object Reconstruction
This addresses 3D reconstruction for computer vision applications, offering a hybrid approach that is incremental in combining existing techniques.
The paper tackles 3D object mesh reconstruction from RGB videos by optimizing meshes for photometric consistency with a shape prior, achieving results unattainable with naive networks or traditional methods without manual post-processing.
In this paper, we address the problem of 3D object mesh reconstruction from RGB videos. Our approach combines the best of multi-view geometric and data-driven methods for 3D reconstruction by optimizing object meshes for multi-view photometric consistency while constraining mesh deformations with a shape prior. We pose this as a piecewise image alignment problem for each mesh face projection. Our approach allows us to update shape parameters from the photometric error without any depth or mask information. Moreover, we show how to avoid a degeneracy of zero photometric gradients via rasterizing from a virtual viewpoint. We demonstrate 3D object mesh reconstruction results from both synthetic and real-world videos with our photometric mesh optimization, which is unachievable with either naïve mesh generation networks or traditional pipelines of surface reconstruction without heavy manual post-processing.