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33. RESEARCH OF OPTICAL SYSTEM FOR MACHINE-BUILDING PRODUCTS IDENTIFICATION.

Author

Makhov, V. E. and Zakharenko, E. A.

Subjects
METAL products, MACHINE performance, METALLIC surfaces, LASER printing, BAR codes, COMPUTER vision
Abstract

Background: Laser technology of information application on the surface of metal products allows implementing automated accounting for critical metallurgical and machine-building industries. Inhomogeneous optical properties of the laser tags causes the problem of reliable reading and decoding of information fields applied to the metal. Therefore, there is urgency of developing optical readers of information fields and their decoding algorithms. Materials and/or methods: To read the recorded information fields in the structure of laser prints the method is used of optical registering of cone beams rays which are reflected from the surface of the metal and selected by lens aperture. Decoding the information fields is fulfilled by finding the coordinates of the inscribed circles in binary clusters of laser prints images. Results: Using optical registration with circular light and angular filtering of reflected rays gave after image processing a homogeneous cluster structure of laser prints. Developed decoding algorithms have high reliability, allow control of the decoding process, and are insensitive to the condition and shape of the metal surface. Conclusion: The possibility is shown of creation an optical reader of information fields on the basis of digital cameras with a high-resolution sensor, integrated with the computer vision technologies that allows to increase the amount of recorded information by 5 times, resulting in an opportunity to solve the problem of accounting for metal products. [ABSTRACT FROM AUTHOR]

Published
2013

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