论文信息 - A method for inspecting industrial parts surfaces based on an optics model

A method for inspecting industrial parts surfaces based on an optics model

Abstract. A new method based on an optics model for highly reliable surface inspection of industrial parts has been developed. This method uses multiple images taken under different camera conditions. Phong's model is employed for surface reflection, and then the albedo and the reflection model parameters are estimated by the least squares method. The developed method has advantages over conventional binarization in that it can easily determine the threshold of product acceptability and cope with changes in light intensity when detecting defects.

Mutsuo Sano | Masashi Okudaira | Shuichi Ohara | Norifumi Katafuchi

[1] Mutsuo Sano,et al. A Method of Industrial Parts Surface Inspection Based on an Optics Model , 1998, ACCV.

[2] Katsushi Ikeuchi,et al. Determining Surface Roughness and Shape of Specular Diffuse Lobe Objects Using Photometric Sampling Device , 1992, MVA.

[3] Dana H. Ballard,et al. Computer Vision , 1982 .

[4] Takeo Kanade,et al. Determining shape and reflectance of hybrid surfaces by photometric sampling , 1989, IEEE Trans. Robotics Autom..

[5] Anil K. Jain,et al. A Survey of Automated Visual Inspection , 1995, Comput. Vis. Image Underst..

[6] Tsnsliiiiia Nala,et al. Shape from Shading with Interreflections under Proximal Light Source - 3D shape Reconstruction of Unfolded Book Surface from a Scanner Image - , 1995 .