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Recognition of Isolated Multi-Oriented Handwritten/Printed Characters using a Novel Convex-Hull Based Alignment Technique
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 1 - Number 23 |
| Year of Publication: 2010 |
| Authors: Nibaran Das, Sandip Pramanik, Ram Sarkar, Subhadip Basu, Punam Kumar Saha |
10.5120/539-703
|
Nibaran Das, Sandip Pramanik, Ram Sarkar, Subhadip Basu, Punam Kumar Saha . Recognition of Isolated Multi-Oriented Handwritten/Printed Characters using a Novel Convex-Hull Based Alignment Technique. International Journal of Computer Applications. 1, 23 ( February 2010), 40-45. DOI=10.5120/539-703
Abstract
Handwritten character recognition is one of the difficult tasks of pattern recognition due to diverse writing styles. The problem becomes more severe if the characters are written in a cursive fashion with varying orientations. Also there may exist printed characters of different shapes/fonts and sizes in a document image. In the current work, we have presented a novel convex hull based alignment technique for effective recognition of multioriented handwritten/printed characters. During this alignment process, the maximum distance from the convex hull centroid to character body is calculated and the distance is translated to Y axis along with all the points of the characters. Then the features are extracted from the aligned data. The experimental results of the current technique show notable improvement in recognition accuracy of isolated multi-oriented handwritten/printed digit patterns of Bangla and Devanagri scripts. As observed from the experimentation, the current technique enhances the recognition accuracy by 12.50%, 12.23 %, 16.81% on handwritten Bangla, handwritten Devanagari and printed Bangla digit datasets respectively.
References
- S. adam et al., “Multiscaled and multi oriented Character recognition an Original Strategy”,ICDAR-1999,pp.- 45-48
- T. Wakahara, “Affine-Invariant Gray-scale character Recognition using GAT correlation”,ICPR-2000,pp.417-421
- U. Pal. et al., “Recognition of English Multi-oriented Characters”, ICPR’06,pp.-873-876
- Partha Pratim Roy, Umapada Pal, Josep Lladós, Fumitaka Kimura, Convex Hull based Approach for Multi-Oriented Character Recognition from Graphical Documents”, ICPR- 2008,1-4
- Laura Vyšniauskaitė et al., “A Priori Filtration Of Points For Finding Convex Hull”, Tede. 2006, Vol XII, No 4, 341–346.
- E. L. Lady , http://www.math.hawaii.edu/~lee/calculus/ green.pdf , February 14, 2000
- http://www.csie.ntu.edu.tw/~cjlin/libsvm/
- S.Basu, R.Sarkar, N.Das, M.Kundu, M.Nasipuri, D.K.Basu, “Handwritten Bangla digit recognition using classifier combination through DS technique,” S. K. Pal et.al. (Eds.), Lecture Notes in Computer Science, Vol. 3776, PReMI, pp.236-241, Dec. 2005,
- N. Das, S. Basu, P. K. Saha, R. Sarkar, , M.Kundu, M.Nasipuri, “A GA Based approach for selection of local features for recognition of handwritten Banngla numerals” published in NE ASEE-2009, University of Bridgeport, USA
- Nibaran Das, Subhadip Basu, Ram Sarkar, Mahantapas Kundu, Mita Nasipuri, Dipak kumar Basu, “An Improved Feature Descriptor for Recognition of Handwritten Bangla Alphabet”, in Proc. of International conference on Signal and Image Processing( ICSIP-2009), India
- Nibaran Das, Ram Sarkar, Subhadip Basu , Mahantapas Kundu, Mita Nasipuri , Dipak Kumar Basu , “A Soft Computing Paradigm for Handwritten Digit Recognition with Application to Bangla Digits”, MS’07,India, p.p. 771- 774
- S. Basu, N. Das, R. Sarkar M. Kundu, M. Nasipuri, D. K. Basu, "An MLP based Approach for Recognition of Handwritten ‘Bangla’ Numerals,” IICAI-05, pp. 407-417
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