论文信息 - Multichannel phtorefractive correlator for rotation-invariant optical pattern recognition

Multichannel phtorefractive correlator for rotation-invariant optical pattern recognition

Abstract A multichannel optical correlator is reported in this paper. Holographic matched filters synthesized with reference patterns at different rotational angles are stored in the photorefractive medium via angular and modified peristrophic multiplexing. During the recognition process, the input image is compared with all the reference patterns in parallel. The feasibility is demonstrated by experimental results.

Xiangyang Yang | Xiangyang Yang | Zhiqing Wen | Zhiqing Wen

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