从明暗恢复形状问题中的一种分形约束方法探讨

A Fractal Constraint Method in Shape from Shading Problems

本文提出一种由从明暗恢复自然景物表面三维形状的一种表面约束方法。该方法从传统约束条件的分形本质出发，克服了传统表面恢复方法造成恢复结果过分平滑而失真的缺点，并利用最大后验概率方法对物体表面高度函败进行Ｇｉｂｂｓ 随机采样，从而得到待恢复表面三维形状的一个最佳实现。

This paper discussed a constraint method in shape form shading problems for natural surfaces image. This method makes use of the fractal nature of conditional smooth constraint and so gets over the disadvantage of smoothing effects in the recovered surface. And Maximum a Posterior method is used to obtain an optimal realization of the surface by Gibbs sampling method.