DocumentCode
859031
Title
Extracting the shape and roughness of specular lobe objects using four light photometric stereo
Author
Solomon, Fredric ; Ikeuchi, Katsushi
Author_Institution
Robotics Inst., Carnegie Mellon Univ., Pittsburgh, PA, USA
Volume
18
Issue
4
fYear
1996
fDate
4/1/1996 12:00:00 AM
Firstpage
449
Lastpage
454
Abstract
We propose a noncontact method for the measurement of surface shape and surface roughness. The method, which we call “four light photometric stereo”, uses four lights, which sequentially illuminate the object under inspection, and a video camera for taking images of the object. The method has successfully been applied to a number of real objects
Keywords
automatic optical inspection; computer vision; feature extraction; image segmentation; image texture; lighting; photometry; stereo image processing; surface topography measurement; Torrance-Sparrow model; four light photometric stereo; illumination; part inspection; segmentation; shape extraction; specular lobe objects; surface roughness; surface shape measurement; video camera; Brain modeling; Cameras; Inspection; Photometry; Reflectivity; Rough surfaces; Shape measurement; Stereo vision; Surface fitting; Surface roughness;
fLanguage
English
Journal_Title
Pattern Analysis and Machine Intelligence, IEEE Transactions on
Publisher
ieee
ISSN
0162-8828
Type
jour
DOI
10.1109/34.491627
Filename
491627
Link To Document