Shape From Shading is an application of Photometric Stereo which is ... The result of this program can actually output a visual representation of the object in 3D using something called a needle map ...

This chapter presents a 3D shape estimation method that uses all the directional information of the light to benefit from the advantages of two conventional approaches while overcoming their ...

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Extraction of shape from shading is then equivalent to the much simpler problem of parameter estimation in a low-dimensional space. We carry out this proposal for an important class of ...