Real-Time Optical Hough Transform for Industrial Inspection

Jeffrey Richards; David Casasent

doi:10.1117/12.969718

1 March 1990 Real-Time Optical Hough Transform for Industrial Inspection

Jeffrey Richards, David Casasent

Proceedings Volume 1192, Intelligent Robots and Computer Vision VIII: Algorithms and Techniques; (1990) https://doi.org/10.1117/12.969718
Event: 1989 Symposium on Visual Communications, Image Processing, and Intelligent Robotics Systems, 1989, Philadelphia, PA, United States

Abstract

We describe a real-time optical Hough transform (HT) inspection system and show quantitative inspection results using an industrial inspection application. The HT architecture uses an electronically addressed liquid crystal television (LCTV) as the real-time spatial light modulator, a novel selective edge-enhancement filtering technique, and realizes multiple slices of the HT with a computer generated hologram. The industrial case study of the inspection of cigarette packages is used to benchmark the HT processor. A test set of 100 packages is presented to the processor to qualify its effectiveness. The statistical significance of these finite test set results is also examined.

Citation Download Citation

Jeffrey Richards and David Casasent "Real-Time Optical Hough Transform for Industrial Inspection", Proc. SPIE 1192, Intelligent Robots and Computer Vision VIII: Algorithms and Techniques, (1 March 1990); https://doi.org/10.1117/12.969718

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