A new technique is proposed for LOG (Laplacian Of Gaussian) filtering based on the method using look-up-tables. The authors take advantage of the circularly symmetric characteristic of the LOG filter, then a look-up-table with acceptable size is established. This transforms a large amount of multiplying operations into easy look-up-table operations. At the same time, another mask which can form an adaptive threshold is added to the LOG mask so that the decision whether a edge exists or not from the result of convolution can be made easily. As a result, LOG filtering becomes a method of edge detection in real time.<>


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    Title :

    Edge detection on real time using LOG filter


    Contributors:
    Shen Liqin (author) / Shen Dinggang (author) / Qi Feihu (author)


    Publication date :

    1994-01-01


    Size :

    226788 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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