In this paper, we present a compressed pattern matching method for searching user queried words in the CCITT Group 4 compressed document images, without decompressing. The feature pixels composed of black changing elements and white changing elements are extracted directly from the CCITT Group 4 compressed document images. The connected components are labeled based on a line-by-line strategy according to the relative positions between the changing elements of the current coding line and the changing elements of the reference line. Word boxes are bounded by merging the connected components. A two-stage matching strategy is constructed to measure the dissimilarity between the template image of the user's query word and the words extracted from document images. Experimental results confirmed the validity of the proposed approach.


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    Title :

    Word searching in CCITT group 4 compressed document images


    Contributors:
    Yue Lu, (author) / Chew Lim Tan, (author)


    Publication date :

    2003-01-01


    Size :

    287758 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Word Searching in CCITT Group 4 Compressed Document Images

    Lu, Y. / Tan, C. / Institute of Electrical and Electronics Engineers | British Library Conference Proceedings | 2003


    Simultaneous Word Segmentation from Document Images Using Recursive Morphological Closing Transform

    Chen, S. / Haralick, R. M. / Phillips, I. T. | British Library Conference Proceedings | 1995