Reconstructing the 3D shape of an object using several images under different light sources
is a very challenging task, especially when realistic assumptions such as light propagation …

Shape recovery of an object based on shading variations resulting from different light
sources has recently been reconsidered. Improvements have been made that allow for the …

Abstract 3D shape recovery using photometric stereo (PS) gained increasing attention in the
computer vision community in the last three decades due to its ability to recover the thinnest …

Recovering the 3D shape of an object from shading is a challenging problem due to the
complexity of modeling light propagation and surface reflections. Photometric Stereo (PS) is …

In this paper we present a differential approach to photo-polarimetric shape estimation. We
propose several alternative differential constraints based on polarisation and photometric …

Shape from shading with multiple light sources is an active research area, and a diverse
range of approaches have been proposed in recent decades. However, devising a robust …

The soil layer is a common issue for energy systems as solar panels or prime mover and
driven turbomachines. This phenomenon is usually known as fouling, and it consists of a …

The reconstruction of a 3D object or a scene is a classical inverse problem in Computer
Vision. In the case of a single image this is called the Shape-from-Shading (SfS) problem …

In this paper, we present a photometric stereo algorithm for estimating surface height. We
follow recent work that uses photometric ratios to obtain a linear formulation relating surface …

Photometric 3D-reconstruction techniques aim at inferring the geometry of a scene from one
or several images, by inverting a physical model describing the image formation. This …