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本文采用不同光照条件下拍摄的多幅影像，利用光度立体技术建立了物体表面反射图和表面方向的关系，在规一化条件下解求物体表面的方向并进而确定表面梯度，从而克服了ｓｈａｐｅｆｒｏｍｓｈａｄｉｎｇ中的不适定问题，并提出了一种基于表面光滑准则的物体表面重建算法，在单点深度已知的约束条件下可以确定重建表面的绝对深度。实验结果表明了该重建算法的正用性和可行性。
In this paper, using multiple images taken under different light conditions, the relationship between the surface reflectance and the surface direction of the object is established by using the photometric stereoscopic technique. The direction of the surface of the object and the surface gradient are solved under the condition of normalization so as to overcome the shapefromshading In this paper, an object surface reconstruction algorithm based on surface smoothness criterion is proposed. The absolute depth of the reconstructed surface can be determined under the constraints of known single point depth. Experimental results show that the reconstruction algorithm is valid and feasible.