Edge extraction is an important pre-processing operation in image processing and pattern recognition in machine vision. For example, coherent optical image processing for edge detection can be performed in a standard 4-f system with proper pupil designs. The possibility of pre-processing using digital holography for 3D image edge extraction is intriguing. In this talk, we will review some of the edge detection techniques used in single-pixel digital holography called optical scanning holography (OSH). OSH is a two-pupil system and different edge detection schemes through the different combinations of pupils are discussed.


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    Title :

    Review on edge extraction as pre-processing in optical scanning holography


    Contributors:
    Zhang, Yaping (author) / Yao, Yongwei (author) / Wang, Bin (author) / Fan, Houxin (author) / Poon, T.-C. (author)

    Conference:

    Holography, Diffractive Optics, and Applications XI ; 2021 ; Nantong,Jiangsu,China


    Published in:

    Proc. SPIE ; 11898


    Publication date :

    2021-10-09





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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