Abstract
This paper presents a segmentation technique based on fuzzy logic and information entropy principle to extract alphanumeric characters from general scene images. In this approach, the scene images are segmented into various regions based on fuzzy entropy method. A coarse searching technique is then implemented to locate potential character regions, followed by a rule-based character detecting technique to accurately extract characters. The x-projection/profile is also applied to search for any missing characters. Test results show that the proposed method is capable of extracting alphanumeric characters from various scene images under badly illuminating condition.
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B.T. Chun, J. Soh and B.W. Min, Locating Number Plates on Vehicles by Using Topographical Features, Proc. ACCV'93, 430–433, Japan, 1983
T. K. Lim, J. T. Ong, et al., Image Segmentation and Character Recognition of Vehicle License Plates for Electronic Road Pricing, Proc. ICARCV'92, 1663–1667, Singapore, 1992
J. Ohya, A.Shio and S.Akamatru, Recognising Characters in Scene Images, IEEE Trans. PAMI, Vol. 16, No. 2, 214–220, Feb. 1994
M. He and A. L. Harvey, Vehicle Number Plate Location for Character Recognition, Proc. ACCV'95, 1425–1428, Singapore, 1995
C. M. Lee and A. Kankanhalli, Automatic Extraction of Characters in Complex Scene Images, Patt. Recog. Artif Intell, 9(l), 67–82, 1995
L. Z. Yong and Opas Chutatape, A Method for Car Number Plate Character Extraction, Proc. IEEE Int. Conf. on SPCS'95, 256–259, Singapore, 1995
K. Lim, J.T. Ong, and M. A. Do, Development of an Electronic Camera Enforcement System for Electronic Road Pricing, Proc. ICARCV'92, CV15.3.1–15.3.6, Singapore, 1992
K. Miyamoto, K. Nagano, et al., Vehicle Licence-Plate Recognition By Image Analysis, Proc. IEEE IECON'91, 1734–1738, Japan, 1991
S.K. Pal and D. Dutta Majumder, Fuzzy Mathematical Approach to Pattern Recognition, John Wiley & Sons, New York, 1986
S.K. Pal and Azriel Rosenfield, Image Enhancement and Thresholding by Optimization of Fuzzy Compactness, Patt. Recog. Lett. 7, 77–86, 1988
A.K. Jain, Fundamentals of Digital Image Processing, Prentice-Hall, 1989
J.N.Kapur, P.K.Sahoo and A.K.C. Wong, A New Method for Grey-Level Picture Thresholding Using the Entropy of the Histogram, CVGIP, V29, 273–285, 1985
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© 1997 Springer-Verlag Berlin Heidelberg
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Chutatape, O., Li, L. (1997). Character extraction from scene image using fuzzy entropy and rule-based technique. In: Sommer, G., Daniilidis, K., Pauli, J. (eds) Computer Analysis of Images and Patterns. CAIP 1997. Lecture Notes in Computer Science, vol 1296. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-63460-6_168
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DOI: https://doi.org/10.1007/3-540-63460-6_168
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Online ISBN: 978-3-540-69556-1
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