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Proceedings Paper

Image edge enhancement for moving objects with a spiral phase filter
Author(s): Mingguang Shan; Shanshan Bao; Zhi Zhong; Bengong Hao; Chengquan An
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Paper Abstract

A fast image edge enhancement method for moving objects is presented with a spiral phase filter using radial Hilbert transform theory. The spiral phase filter is placed in the Fourier plane of a 4f optical system, and used to process the spectral of objects image to achieve 2-D image edge enhancement of shape-free objects. All the directions of object edge can be enhanced similarly because there is a phase difference π along any diameter direction of the spiral phase filter. The results show that this method has good performance for enhancing the edge of moving objects. The advantages of this method are simple operations, clear edge images, high measurement speed and automatic measurement.

Paper Details

Date Published: 10 October 2013
PDF: 6 pages
Proc. SPIE 8916, Sixth International Symposium on Precision Mechanical Measurements, 891624 (10 October 2013); doi: 10.1117/12.2035764
Show Author Affiliations
Mingguang Shan, Harbin Engineering Univ. (China)
Shanshan Bao, Harbin Engineering Univ. (China)
Zhi Zhong, Harbin Engineering Univ. (China)
Bengong Hao, Harbin Engineering Univ. (China)
Chengquan An, Harbin Engineering Univ. (China)

Published in SPIE Proceedings Vol. 8916:
Sixth International Symposium on Precision Mechanical Measurements
Shenghua Ye; Yetai Fei, Editor(s)

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