Image edge enhancement for moving objects with a spiral phase filter

Mingguang Shan; Shanshan Bao; Zhi Zhong; Bengong Hao; Chengquan An

doi:10.1117/12.2035764

10 October 2013 Image edge enhancement for moving objects with a spiral phase filter

Mingguang Shan, Shanshan Bao, Zhi Zhong, Bengong Hao, Chengquan An

Proceedings Volume 8916, Sixth International Symposium on Precision Mechanical Measurements; 891624 (2013) https://doi.org/10.1117/12.2035764
Event: Sixth International Symposium on Precision Mechanical Measurements, 2013, Guiyang, China

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.

Citation Download Citation

Mingguang Shan, Shanshan Bao, Zhi Zhong, Bengong Hao, and Chengquan An "Image edge enhancement for moving objects with a spiral phase filter", Proc. SPIE 8916, Sixth International Symposium on Precision Mechanical Measurements, 891624 (10 October 2013); https://doi.org/10.1117/12.2035764

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