Improved methods of estimating shape from shading using the light source coordinate system
Artificial Intelligence
Shape from shading
Estimation of Illuminant Direction, Albedo, and Shape from Shading
IEEE Transactions on Pattern Analysis and Machine Intelligence
Impossible and ambiguous shading patterns
International Journal of Computer Vision
On the feasibility determining light-source direction from an image
Quarterly of Applied Mathematics
Shading Flows and Scenel Bundles: A New Approach to Shape from Shading
ECCV '92 Proceedings of the Second European Conference on Computer Vision
ICPR '98 Proceedings of the 14th International Conference on Pattern Recognition-Volume 2 - Volume 2
Estimation of multiple directional illuminants from a single image
Image and Vision Computing
Hi-index | 0.00 |
Various computational techniques have been developed that performreasonably well in inferring shape from shading. However, thesetechniques typically require substantial prerequisite information ifthey are to evolve an estimate of surface shape. It is thereforeinteresting to consider how depth might be inferred from shadinginformation without prior knowledge of various scene conditions. Oneapproach has been to undertake a pre-processing step ofestimating the light-source direction, thereby providing input tothe computation of shape from shading. In this paper, we presentevidence that a versatile light-source-direction estimator isunattainable, and propose that, in the absence of domain-specificknowledge, shape and light-source direction should be determined ina coupled manner