High-Quality RGB-D Reconstruction via Multi-View Uncalibrated Photometric Stereo and Gradient-SDF
MCML Authors
Björn Häfner
* Former Member
Xingxing Zuo
Dr.
* Former Member
→ Group Stefan Leutenegger
* Former Principal Investigator
Daniel Cremers
Prof. Dr.
Director
Abstract
Björn Häfner
* Former Member
Xingxing Zuo
Dr.
* Former Member
→ Group Stefan Leutenegger
* Former Principal Investigator
Daniel Cremers
Prof. Dr.
Director
Abstract
Fine-detailed reconstructions are in high demand in many applications. However, most of the existing RGB-D reconstruction methods rely on pre-calculated accurate camera poses to recover the detailed surface geometry, where the representation of a surface needs to be adapted when optimizing different quantities. In this paper, we present a novel multi-view RGB-D based reconstruction method that tackles camera pose, lighting, albedo, and surface normal estimation via the utilization of a gradient signed distance field (gradient-SDF). The proposed method formulates the image rendering process using specific physically-based model(s) and optimizes the surface’s quantities on the actual surface using its volumetric representation, as opposed to other works which estimate surface quantities only near the actual surface. To validate our method, we investigate two physically-based image formation models for natural light and point light source applications. The experimental results on synthetic and real-world datasets demonstrate that the proposed method can recover high-quality geometry of the surface more faithfully than the state-of-the-art and further improves the accuracy of estimated camera poses
inproceedings
WACV 2023
IEEE/CVF Winter Conference on Applications of Computer Vision. Waikoloa, Hawaii, Jan 03-07, 2023.
Authors
L. Sang • B. Häfner • X. Zuo • D. CremersLinks
DOIResearch Areas
BibTeXKey: SHZ+23