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Proceedings Paper

New technique for real-time distortion-invariant multiobject recognition and classification
Author(s): Rutong Hong; Xiaoshun Li; En Hong; Zuyi Wang; Hongan Wei
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Paper Abstract

A real-time hybrid distortion-invariant OPR system was established to make 3D multiobject distortion-invariant automatic pattern recognition. Wavelet transform technique was used to make digital preprocessing of the input scene, to depress the noisy background and enhance the recognized object. A three-layer backpropagation artificial neural network was used in correlation signal post-processing to perform multiobject distortion-invariant recognition and classification. The C-80 and NOA real-time processing ability and the multithread programming technology were used to perform high speed parallel multitask processing and speed up the post processing rate to ROIs. The reference filter library was constructed for the distortion version of 3D object model images based on the distortion parameter tolerance measuring as rotation, azimuth and scale. The real-time optical correlation recognition testing of this OPR system demonstrates that using the preprocessing, post- processing, the nonlinear algorithm os optimum filtering, RFL construction technique and the multithread programming technology, a high possibility of recognition and recognition rate ere obtained for the real-time multiobject distortion-invariant OPR system. The recognition reliability and rate was improved greatly. These techniques are very useful to automatic target recognition.

Paper Details

Date Published: 4 April 2001
PDF: 8 pages
Proc. SPIE 4305, Applications of Artificial Neural Networks in Image Processing VI, (4 April 2001); doi: 10.1117/12.420940
Show Author Affiliations
Rutong Hong, Southwest Institute of Technical Physics (China)
Xiaoshun Li, Southwest Institute of Technical Physics (China)
En Hong, Southwest Institute of Technical Physics (China)
Zuyi Wang, Southwest Institute of Technical Physics (China)
Hongan Wei, Southwest Institute of Technical Physics (China)


Published in SPIE Proceedings Vol. 4305:
Applications of Artificial Neural Networks in Image Processing VI
Nasser M. Nasrabadi; Aggelos K. Katsaggelos, Editor(s)

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