Self-amplified optical pattern recognizers developed for use in recognition of patterns, in optical computing, and in optoelectronic neural networks. In recognizer, photorefractive crystal serves as medium in which one holographically records diffraction-grating filter representing pattern with which recognition sought. Apparatus "self-amplified" because signal amplified within filter to many orders of magnitude greater than in prior optical pattern recognizers. Basic principle of operation applicable to many types of correlation filters, including (but not limited to) Vander Lugt matched filters, joint-transform filters, and phase-only filters.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Self-Amplified Optical Pattern Recognizer


    Contributors:

    Published in:

    Publication date :

    1993-05-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    Syntactic pattern recognizer for vehicle identification numbers

    Cowell, J. R. | British Library Online Contents | 1995


    RUNWAY RECOGNIZER

    MAEDA MASARU / KUMANO TOSHIYA / KINOSHITA OSAMU | European Patent Office | 2019

    Free access

    Cyrillic Recognizer

    Dolgoarshinnykh, B. G. | British Library Online Contents | 1996


    Self-amplified optical pattern recognition (Invited Paper) [2321-196]

    Liu, H. K. / Chinese Optical Society; Topical Committee on Optoelectronic Technology / SPIE- The International Society for Optical Engineering | British Library Conference Proceedings | 1994


    Intelligent parking recognizer

    HE GUIXIONG | European Patent Office | 2021

    Free access