Research on distortion invariant in optical correlation detection and recognition technology

Xiao-wei Shi; Yi-xian Qian; Xue-ting Hong; Deng-hui Li

doi:10.1117/12.2071154

11 November 2014 Research on distortion invariant in optical correlation detection and recognition technology

Xiao-wei Shi, Yi-xian Qian, Xue-ting Hong, Deng-hui Li

Proceedings Volume 9271, Holography, Diffractive Optics, and Applications VI; 927122 (2014) https://doi.org/10.1117/12.2071154
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

Abstract

It is difficult to dectect and recognize moving target for optical correlator owing to the image information containing various rotation and scale variation, though optical processing owns the advantage of high-speed, large capacity and real-time. An efficient approach was proposed to impove correlation peak and enhance recognition performance of target based on Fourier-Mellin transform, by which optical correlator is not sensitive to the distortion of image information, and it will alleviate greatly the complexity of image recognition. We have also constructed an detection and recognition system based on optical joint correlator, the computer simulations and experimental results show that the proposed method has got sharp corrlation peak and improved the detection performance.

Citation Download Citation

Xiao-wei Shi, Yi-xian Qian, Xue-ting Hong, and Deng-hui Li "Research on distortion invariant in optical correlation detection and recognition technology", Proc. SPIE 9271, Holography, Diffractive Optics, and Applications VI, 927122 (11 November 2014); https://doi.org/10.1117/12.2071154

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