Department of Information Technology, Lappeenranta University of Technology, Lappeenranta, Finland.
IEEE Trans Pattern Anal Mach Intell. 2009 Dec;31(12):2282-9. doi: 10.1109/TPAMI.2009.101.
Photometric stereo can be used to obtain a fast and noncontact surface reconstruction of Lambertian surfaces. Despite several published works concerning the uncertainties and optimal light configurations of photometric stereo, no solutions for optimal surface reconstruction from noisy real images have been proposed. In this paper, optimal surface reconstruction methods for approximate planar textured surfaces using photometric stereo are derived, given that the statistics of imaging errors are measurable. Simulated and real surfaces are experimentally studied, and the results validate that the proposed approaches improve the surface reconstruction especially for the high-frequency height variations.
光度立体技术可用于快速、非接触式地重建朗伯面的表面。尽管已经有一些关于光度立体技术的不确定性和最佳光照配置的已发表作品，但尚未提出从噪声实际图像中进行最佳表面重建的解决方案。本文针对可测量成像误差统计量的近似平面纹理表面，推导了使用光度立体技术进行最佳表面重建的方法。对模拟和真实表面进行了实验研究，结果验证了所提出的方法可以改善表面重建，特别是对于高频高度变化。
