Shape from Shading: Recognizing the Mountains through a Global View

@article{Zhu2006ShapeFS,
  title={Shape from Shading: Recognizing the Mountains through a Global View},
  author={Qihui Zhu and Jianbo Shi},
  journal={2006 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'06)},
  year={2006},
  volume={2},
  pages={1839-1846}
}
Resolving local ambiguities is an important issue for shape from shading (SFS). Pixel ambiguities of SFS can be eliminated by propagation approaches. However, patch ambiguities still exist. Therefore, we formulate the global disambiguation problem to resolve these ambiguities. Intuitively, it can be interpreted as flipping patches and adjusting heights such that the result surface has no kinks. The problem is intractable because exponentially many possible configurations need to be checked… CONTINUE READING
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