World Academy of Science, Engineering and Technology
Published July 23, 2008 | Version 11950
Journal article Open

Binarization of Text Region based on Fuzzy Clustering and Histogram Distribution in Signboards

Description

In this paper, we present a novel approach to accurately detect text regions including shop name in signboard images with complex background for mobile system applications. The proposed method is based on the combination of text detection using edge profile and region segmentation using fuzzy c-means method. In the first step, we perform an elaborate canny edge operator to extract all possible object edges. Then, edge profile analysis with vertical and horizontal direction is performed on these edge pixels to detect potential text region existing shop name in a signboard. The edge profile and geometrical characteristics of each object contour are carefully examined to construct candidate text regions and classify the main text region from background. Finally, the fuzzy c-means algorithm is performed to segment and detected binarize text region. Experimental results show that our proposed method is robust in text detection with respect to different character size and color and can provide reliable text binarization result.

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References

  • G. Nagy, "Twenty years of document image analysis" IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 22, no. 1, pp. 38-62, 2000.
  • H. Peng, F. Long, Z. Chi, "Document image recognition based on template matching of component block projections," IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 25, no. 9, pp. 1188-1192, 2003.
  • I.S. Oh, C.Y. Suen, "Distance features for neural network-based recognition of handwritten characters," International Journal on Document Analysis and Recognition, vol. 1, pp. 73-88, 1998.
  • H. Li, D. Doermann, O. Kia, "Automatic text detection and tracking in digital videos," IEEE Transactions on Image Processing, vol. 9, no. 1, pp. 147-156, 2000.
  • J. Xi, X. Hua, L. Wenyin, H.J. Zhang, "A video text detection and recognition system," International Conference on Multimedia and Expo, pp. 873-876, 2001
  • A.K. Jain, B. Yu, "Automatic text location in images and video frames," Pattern Recognition, vol. 31, no. 12, pp. 2055-2076, 1998.
  • N. Ezaki, K. Kiyota, B.T. Minh, M. Bulacu, L. Schomaker, "Improved text-detection methods for a camera-based text reading system for blind persons," International Conference on Document Analysis and Recognition, pp. 257-261, 2005.
  • X. Chen, J. Yang, J. Zhang, A. Waibel, "Automatic detection and recognition of signs from natural scenes," IEEE Transactions on Image Processing, vol. 13, no. 1, pp. 87-99, 2004.
  • K. Jung, K.I. Kim, A.K. Jain, "Text information extraction in images and video: a survey," Pattern Recognition, vol. 37, pp. 977-997, 2004. [10] J. Gao, Y. Yang, Y. Zhang, A. Waibel, "Text detection and translation from natural scenes," Tech. Report CMU-CS-01-139, 2001. [11] Q. Ye, J. Jiao, J. Huang, H. Yu, "Text detection and restoration in natural scene images," Journal of Visual Communication and Image Representation, vol. 18, pp. 504-513, 2007. [12] G. Obinata, A. Dutta, Vision Systems: Segmentation and Pattern Recognition, I-Tech, pp. 307-332, 2007. [13] J. Gllavata, R. Ewerth, B. Freisleben, "A robust algorithm for text detection in images," International Symposium on Image and Signal Processing, vol. 2, pp. 611-616, 2003. [14] W. Wu, X. Chen, J. Yang, "Detection of text on road signs from video," IEEE transaction Intelligent Transportation Systems, vol. 6, no. 4, pp. 378-390, 2005. [15] D. Chen, H. Bourlard, J.P. Thiran, "Text identification in complex background using SVM," IEEE Computer Society Conference on Computer Vision and Pattern Recognition, vol. 2, pp. 621-626, 2001. [16] Y. Zhong, K. Karu, A.K. Jain, "Locating text in complex color images," pattern Recognition, vol. 28, no. 10, pp. 1523-1536, 1995. [17] A.K. Jain, B. Yu, "Automatic text location in image and video frames," International Conference on Pattern Recognition, vol. 2, pp. 1497-1499, 1998. [18] R. Lienhart, A.Wernicke, "Localizing and segmenting text in images and videos," IEEE Transactions on Circuits System, vol. 12, no. 4, pp. 256-268, 2002. [19] Y. Zhong, H. Zhang, A.K. Jain, "Automatic caption localization in compressed video," IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 22, no. 4, pp. 385-392, April 2000. [20] X. Tang, X. Gao, J. Liu, H. Zhang, "A spatial-temporal approach for video caption detection and recognition," IEEE Transactions on Neural Network, vol. 13, no. 4, pp. 961-971, 2002. [21] K. In Kim, K. Jung, J. Hyung, "Texture-based approach for text detection in images using support vector machines and continuously adaptive mean shift algorithm," IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 25, no. 12, pp. 1631-1639, 2003. [22] M. Fujii, W.J.R. Hoefer, "Filed-singularity correction in 2-D time-domain Haar-wavelet Modeling of waveguide components," IEEE Transactions on Microwave Theory and Techniques, vol. 49, no. 4, pp. 685-691, 2001. [23] Q. Ye, W. Gao, W. Wang, W. Zeng, "A robust text detection algorithm in images and video frames," International Conference on Information, Communications and Signal Processing, vol. 2, pp. 802-806, 2003. [24] Y. Zheng, H. Li, D. Doermann, "Machine printed text and handwriting identification in noisy document images," IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 26, no. 3, pp. 337-353, 2004. [25] S. Belongie, J. Malik, J. Puzicha, "Matching shapes," International Conference on Computer Vision, vol. 1, pp. 454-461, 2001. [26] M. Sonka, V. Hlavac, R. Boyle, Image Processing, Analysis and Machine Vision, Thomson Asia Pte Led. [27] R.L. Cannon, J.V. Dave, J.C. Bezdek, "Efficient implementation of the fuzzy c-means clustering algorithm," IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 8. No. 2, pp. 248-255, 1986. [28] Y. Liu, S. Goto, T. Ikenaga, "A contour-based robust algorithm for text detection in color images," IEICE Transaction Information and System, vol. E89-D, no. 3, pp. 1221-1230, 2006.