Spatial multichannel technique to extend synthetic discriminant function (SDF) distortion-invariant range in the real-time hardware optical implementation system

Rutong Hong; Wantao He; Xucheng Lu; Wei Ji

doi:10.1117/12.205809

28 March 1995 Spatial multichannel technique to extend synthetic discriminant function (SDF) distortion-invariant range in the real-time hardware optical implementation system

Rutong Hong, Wantao He, Xucheng Lu, Wei Ji

Author Affiliations +

Proceedings Volume 2490, Optical Pattern Recognition VI; (1995) https://doi.org/10.1117/12.205809
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

Abstract

A SDF (Synthetic Discriminant Function) could not cover a large distortion range to ensure a good correlation S/N with training images. There exists a limitation for the training image number of a SDF. To extend the distortion range of SDF hardware implementation system, a new spatial multichannel technique was proposed. A multiplex SDF real-time 3D distortion-invariant spatial filtering was realized using holographic technique by means of a special phase grating, a high correlation S/N, very good abilities of intraclass recognition and clutter rejection were got, multiobject tracking and shift invariant abilities were kept. The 3D object OPR (Optical Pattern Recognition) distortion-invariant range was extended greatly. This technique could be applied to practical machine vision purpose.

Citation Download Citation

Rutong Hong, Wantao He, Xucheng Lu, and Wei Ji "Spatial multichannel technique to extend synthetic discriminant function (SDF) distortion-invariant range in the real-time hardware optical implementation system", Proc. SPIE 2490, Optical Pattern Recognition VI, (28 March 1995); https://doi.org/10.1117/12.205809

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