Title
3D Precise Inspection of Electronic Devices by Single Stereo Vision
Abstract
It is very important to guarantee the quality of the in- dustrial products by means of visual inspection. In order to reduce the soldering defect with terminal deformation and terminal burr in the manufacturing process, this paper proposes a 3D visual inspection system based on a stereo vision with single camera. It is technically noted that the base line of this single camera stereo was precisely calibrated by the image processing procedure. Also to extract the measuring point coordinates for computing disparity; the error is reduced with original algorithm. Comparing its per- formance with that of human inspection using industrial microscope, the proposed 3D inspection could be an alternative in precision and in processing cost. Since the practical specification in 3D precision is less than 0.02 mm and the experimental performance was around the same, it was demonstrated by the proposed system that the soldering defect with terminal deformation and ter- minal burr in inspection, especially in 3D inspection, was decreased. In order to realize the inline inspection, this paper will suggest how the human inspection of the products could be modeled and be implemented by the computer system especially in manufacturing process.
Year
Venue
Keywords
2007
MVA
image processing,3d visualization,stereo vision,visual inspection
Field
DocType
Citations 
Computer vision,Visual inspection,Automated X-ray inspection,Stereopsis,Image processing,Soldering,Electronics,Microscope,Artificial intelligence,Mathematics,Automated optical inspection
Conference
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Takashi Watanabe1106.44
Akira Kusano201.01
Takayuki Fujiwara35114.13
Hiroyasu Koshimizu410031.83