Abstract
Sato and Ikeuchi[4] proposed an interesting method of shape recovery based on color image analysis which requires the object to be enclosed in a spherical diffuser. In this paper, we improve the method to relax this restriction. Like [4], we use the dichromatic-reflection model to separate the specular reflection and the diffuse reflection. In our method, the point light source is enclosed by a diffuser and is moved to different specified locations by a robot arm. This changes the lighting geometry and a new radiance function of the source is derived. On the whole, this is an improvement on the inconvenient set up of [4]. The capability of our method is verified by real experiments. A simulation package is also developed to test the efficacy of our approach for objects of different sizes under various forms of lighting geometry.
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© 1995 Springer-Verlag Berlin Heidelberg
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Tian, Y., Tsui, H. (1995). Estimating shape and reflectance of surfaces by color image analysis. In: Chin, R.T., Ip, H.H.S., Naiman, A.C., Pong, TC. (eds) Image Analysis Applications and Computer Graphics. ICSC 1995. Lecture Notes in Computer Science, vol 1024. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-60697-1_111
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DOI: https://doi.org/10.1007/3-540-60697-1_111
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