Abstract book (pdf) - ICPR 2010
Abstract book (pdf) - ICPR 2010
Abstract book (pdf) - ICPR 2010
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13:30-16:30,Paper TuBCT9.16<br />
Offline Arabic Handwriting Identification using Language Diacritics<br />
Lutf, Mohammed, Huazhong Univ. of Science and Tech.<br />
You, Xinge, Huazhong Univ. of Science and Tech.<br />
Li, Hong, Huazhong Univ. of Science and Tech.<br />
In this paper, we present an approach for writer identification using off-line Arabic handwriting. The proposed method introduced<br />
Arabic writing in a new form, by presenting Arabic writing in its basic components instead of alphabetic. We<br />
split the input document into two parts: one for the letters and the other for the diacritics, we extract all diacritics from the<br />
input image and calculate the LBP histogram for each diacritic then concatenate these histograms to use it as handwriting<br />
features. We use the IFN/ENIT database in the experiments reported here and our tests involve 287 writers. The results<br />
show that our method is very effective and makes the handling of the Arabic handwriting more easily than before.<br />
13:30-16:30,Paper TuBCT9.17<br />
Removing Rule-Lines from Binary Handwritten Arabic Document Images using Directional Local Profile<br />
Shi, Zhixin, SUNY at Buffalo<br />
Setlur, Srirangaraj, Univ. at Buffalo<br />
Govindaraju, Venu, Univ. at Buffalo<br />
In this paper, we present a novel approach for detecting and removing pre-printed rule-lines from binary handwritten<br />
Arabic document images. The proposed technique is based on a directional local profiling approach for the detection of<br />
the rule-line locations. Then a refined adaptive vertical run-length search is designed for removing the rule-line pixels<br />
without much damaging to the text. They are also tolerate to the variations in the rule-lines such as broken lines, orientation<br />
changes and variation in the thickness of the rule-lines. Analysis of experimental results on the DARPA MADCAT Arabic<br />
handwritten document data indicates that the method is robust and is capable of correctly removing rule-lines.<br />
13:30-16:30,Paper TuBCT9.18<br />
A Bag-of-Pages Approach to Unordered Multi-Page Document Classification<br />
Gordo, Albert, Univ. Autònoma de Barcelona<br />
Perronnin, Florent, Xerox Res. Centre Europe<br />
We consider the problem of classifying documents containing multiple unordered pages. For this purpose, we propose a<br />
novel bag-of-pages document representation. To represent a document, one assigns every page to a prototype in a code<strong>book</strong><br />
of pages. This leads to a histogram representation which can then be fed to any discriminative classifier. We also consider<br />
several refinements over this initial approach. We show on two challenging datasets that the proposed approach significantly<br />
outperforms a baseline system.<br />
13:30-16:30,Paper TuBCT9.19<br />
Fast Seamless Skew and Orientation Detection in Document Images<br />
Konya, Iuliu Vasile, Fraunhofer IAIS<br />
Eickeler, Stefan, Fraunhofer IAIS<br />
Seibert, Christoph, Fraunhofer IAIS<br />
Reliable and generic methods for skew detection are a necessity for any large-scale digitization projects. As one of the<br />
first processing steps, skew detection and correction has a heavy influence on all further document analysis modules, such<br />
as geometric and logical layout analysis. This paper introduces a generic, scale-independent algorithm capable of accurately<br />
detecting the global skew angle of document images within the range [-90,90] degrees. By using the same framework, the<br />
algorithm is then extended for Roman script documents so as to cope with the full range [-180,180) degrees of possible<br />
skew angles. Despite its generality, the improved algorithm is very fast and requires no explicit parameters. Experiments<br />
on a combined test set comprising around 110000 real-life images show the accuracy and robustness of the proposed<br />
method.<br />
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