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Francois Lauze

2 accepted papers

2017

A Non-Convex Variational Approach to Photometric Stereo Under Inaccurate Lighting

CVPR 2017poster

This paper tackles the photometric stereo problem in the presence of inaccurate lighting, obtained either by calibration or by an uncalibrated photometric stereo method. Based on a precise modeling of noise and outliers, a robust variational approach is introduced. It explicitly accounts for self-sh…

Cited by 73PDFScholar
2015

Geodesic Exponential Kernels: When Curvature and Linearity Conflict

CVPR 2015poster

We consider kernel methods on general geodesic metric spaces and provide both negative and positive results. First we show that the common Gaussian kernel can only be generalized to a positive definite kernel on a geodesic metric space if the space is flat. As a result, for data on a Riemannian mani…

Cited by 186SourcePDFScholar