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Article:A Proposition of a Robust System for Historical Document Images Indexation
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 11 - Number 2 |
| Year of Publication: 2010 |
| Authors: Nizar Zaghden, Remy Mullot, Slim Kanoun, Adel M Alimi |
10.5120/1556-2076
|
Nizar Zaghden, Remy Mullot, Slim Kanoun, Adel M Alimi . Article:A Proposition of a Robust System for Historical Document Images Indexation. International Journal of Computer Applications. 11, 2 ( December 2010), 10-15. DOI=10.5120/1556-2076
Abstract
Characterizing noisy or ancient documents is a challenging problem up to now. Many techniques have been done in order to effectuate feature extraction and image indexation for such documents. Global approaches are in general less robust and exact than local approaches. That’s why, we propose in this paper, a hybrid system based on global approach (fractal dimension), and a local one, based on SIFT descriptor. The Scale Invariant Feature Transform seems to do well with our application since it is rotation invariant and relatively robust to changing illumination. In the first step the calculation of fractal dimension is applied to images, in order to eliminate images which have distant features than image request characteristics. Next, the SIFT is applied to show which images match well the request. However, the average matching time using the hybrid approach is better than “fractal dimension” and “SIFT descriptor” techniques, if they are used alone.
References
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