An integral formulation for differential photometric stereo

James J. Clark, H. Pekau
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引用次数: 7

Abstract

In this paper we present an integral formulation of the active differential photometric stereo algorithm proposed by Clark (1992) and by Iwahori et al. [1992, 1994). The algorithm presented in this paper does not require measurement of derivatives of image quantities, but requires instead the computation of integrals of image quantities. Thus the algorithm is more robust to sensor noise and light source position errors than the Clark-Iwahori algorithm. We show that the algorithm presented in the paper can be efficiently implemented in practice with a planar distributed light source, and present experimental results demonstrating the efficacy of the algorithm.
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微分光度立体的积分公式
在本文中,我们提出了Clark(1992)和Iwahori等人[1992,1994]提出的主动微分光度立体算法的积分公式。本文提出的算法不需要测量图像量的导数,而是需要计算图像量的积分。因此,该算法对传感器噪声和光源位置误差的鲁棒性优于Clark-Iwahori算法。实验结果表明,本文提出的算法在实际应用中可以有效地实现平面分布式光源,并给出了验证算法有效性的实验结果。
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