12 October 2006 Optical on-line product inspection system and its application
Author Affiliations +
Proceedings Volume 6382, Two- and Three-Dimensional Methods for Inspection and Metrology IV; 63820P (2006); doi: 10.1117/12.686030
Event: Optics East 2006, 2006, Boston, Massachusetts, United States
The real-time on-line checkout systems are wildly required to assure the quality of products. A product optical on-line product inspection system is designed based on the principle of image cross-correlation technique. The principle of this optical product inspection method is comparing the image of products on-line with the image of references. To enhance the effectiveness of the cross correlation, a Gaussian filter is introduced to weaken the intensity of the autocorrelation peak. For angle and position detection, ten referential images under different rotation angles are put on a circle position while the image of the object is shown at the center of the circle. The information of the direction and position of the object can be obtained immediately.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Weimin Sun, Yang Yang, Zhilin Zhang, Haili Jiang, Xiaoli Wang, "Optical on-line product inspection system and its application", Proc. SPIE 6382, Two- and Three-Dimensional Methods for Inspection and Metrology IV, 63820P (12 October 2006); doi: 10.1117/12.686030; https://doi.org/10.1117/12.686030

Gaussian filters


Optical inspection


Edge detection

Image filtering

Optical filters

Back to Top