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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 5, Iss. 12 — Dec. 10, 2007
  • pp: 683–686

A polynomial hybrid reflection model and measurement of its parameters based on images of sample

Lei Yang and Jiuqiang Han  »View Author Affiliations


Chinese Optics Letters, Vol. 5, Issue 12, pp. 683-686 (2007)


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Abstract

Reflectance model is a basic concept in computer vision. Some existing models combining the classical diffuse reflectance model and those for surfaces containing specular components can approximately describe real reflectance. But the ratio of diffuse and specular reflection decided manually has no clear meaning. We propose a new polynomial hybrid reflectance model. The reflectance map equation with a known shape (for example cylinder) as a sample is used to estimate parameters of the proposed reflectance model by least square regression algorithm. Then the reflectance parameters for surfaces of the same class of materials can be determined. Experiments are performed for a metal surface. The synthesis images produced by the proposed method and existing ones are compared with the real acquired image, and the results show that the proposed reflectance model is suitable for describing real reflectance.

© 2007 Chinese Optics Letters

OCIS Codes
(100.2960) Image processing : Image analysis
(120.5820) Instrumentation, measurement, and metrology : Scattering measurements
(160.4760) Materials : Optical properties
(290.5820) Scattering : Scattering measurements
(290.5880) Scattering : Scattering, rough surfaces

Citation
Lei Yang and Jiuqiang Han, "A polynomial hybrid reflection model and measurement of its parameters based on images of sample," Chin. Opt. Lett. 5, 683-686 (2007)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-5-12-683

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