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CCD: Connected Component Descriptor for Robust Mosaicing of Camera-Captured Document Images

Kasar, T and Ramakrishnan, AG (2008) CCD: Connected Component Descriptor for Robust Mosaicing of Camera-Captured Document Images. In: 8th International Workshop on Document Analysis Systems, Sep 16-19, 2008, Nara, Japan, pp. 480-486.

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We propose a robust method for mosaicing of document images using features derived from connected components. Each connected component is described using the Angular Radial Tran. form (ART). To ensure geometric consistency during feature matching, the ART coefficients of a connected component are augmented with those of its two nearest neighbors. The proposed method addresses two critical issues often encountered in correspondence matching: (i) The stability of features and (ii) Robustness against false matches due to the multiple instances of characters in a document image. The use of connected components guarantees a stable localization across images. The augmented features ensure a successful correspondence matching even in the presence of multiple similar regions within the page. We illustrate the effectiveness of the proposed method on camera captured document images exhibiting large variations in viewpoint, illumination and scale.

Item Type: Conference Paper
Publisher: IEEE
Additional Information: Copyright of this article belongs to IEEE.
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 30 Apr 2009 03:28
Last Modified: 19 Sep 2010 05:29
URI: http://eprints.iisc.ac.in/id/eprint/19577

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