DANI-Net: uncalibrated photometric stereo by differentiable shadow handling, anisotropic reflectance modeling, and neural inverse rendering

• Main Authors: Li, Zongrui, Zheng, Qian, Shi, Boxin, Pan, Gang, Jiang, Xudong
• Other Authors: School of Electrical and Electronic Engineering
• Format: Conference or Workshop Item
• Language: English
• Published: 2023
• Subjects: Engineering::Computer science and engineering; Uncalibrated Photometric Stereo; Shadow Handling
• Online Access: https://hdl.handle.net/10356/165854; https://cvpr2023.thecvf.com/Conferences/2023
• Institution: Nanyang Technological University

Uncalibrated photometric stereo (UPS) is challenging due to the inherent ambiguity brought by the unknown light. Although the ambiguity is alleviated on non-Lambertian objects, the problem is still difficult to solve for more general objects with complex shapes introducing irregular shadows and gen...