Title :
Automatic Inspection System for Printed Circuit Boards
Author :
Hara, Yasuhiko ; Akiyama, Nobuyuki ; Karasaki, Koichi
Author_Institution :
Production Engineering Research Laboratory, Hitachi, Ltd., 292 Yoshida-cho, Totsuka-ku, Yokohama 244, Japan.
Abstract :
The purpose of this correspondence is to present problems and methods in automating visual inspection of printed circuit boards (PCB´s). Vertical and diagonal illumination are useful in detecting PCB patterns correctly. An algorithm comparing local features of the patterns to be inspected with those of the pattern to be referenced is proposed. An inspection system using developed technologies is also described.
Keywords :
Application software; Computer vision; Image processing; Inspection; Needles; Pattern recognition; Printed circuits; Robotics and automation; Service robots; Shape; Automatic visual inspection; defect detection; image processing; pattern recognition; printed circuit boards; quality assurance;
Journal_Title :
Pattern Analysis and Machine Intelligence, IEEE Transactions on
DOI :
10.1109/TPAMI.1983.4767453
