Car license plate location algorithm based on intensity variance and edge density

Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument

Volumn 32, Issue 5, 2011, Pages 1095-1102

  Zhang, Haopeng ^a   Wang, Zongyi ^a  

^a HARBIN ENGINEERING UNIVERSITY   (China)

Author keywords

Car license plate location; Edge density; Image enhancement; Image recognition; Intensity variance

Indexed keywords

COMPLEX BACKGROUND; EDGE DENSITIES; HIGH QUALITY IMAGES; ILLUMINATION CONDITIONS; INTENSITY VARIANCE; LICENSE PLATE LOCATION; MORPHOLOGICAL OPERATIONS; OBJECT LOCATION; PRIORI KNOWLEDGE; VEHICLE MOTION;

ALGORITHMS; EDGE DETECTION; IMAGE QUALITY; MATCHED FILTERS; MATHEMATICAL MORPHOLOGY;

LICENSE PLATES (AUTOMOBILE);

EID: 79959311516     PISSN: 02543087     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (15)

1. ANAGNOSTOPOULOS C N E, ANAGNOSTOPOUL-OS I E, LOUMOS V, et al. A license plate-recognition algorithm for intelligent transportation system applications[J]. IEEE Transactions on Intelligent Transportation Systems, 2006, 7(3): 377-391.
2. ZHANG L G, YANG J, LI J, et al. Image characteristic extraction method based on wavelet packet and mathematical morphology[J]. Chinese Journal of Scientific Instrument, 2010, 31(10): 2285-2290.
3. LI Y C, LIU Y S, WANG M S. Study and realization for license plate recognition system[C]. Proceedings-2009 Asia-Pacific Conference on Information Processing, Shenzhen, China, 2009: 501-504.
4. NOMURA S, YAMANAKA K, KATAI O, et al. A novel adaptive morphological approach for degraded character image segmentation[J]. Pattern Recognition, 2005, 38(11): 1961-1975.
5. LI G, ZENG R L, LIN L, et al. Car license plate location algorithm based on mathematical morphology[J]. Chinese Journal of Scientific Instrument, 2007, 28(7): 1323-1326.
6. DEB K, LIM H, JO K. Vehicle license plate extraction based on color and geometrical features[C]. IEEE International Symposium on Industrial Electronics, Seoul, Korea, 2009: 1650-1655.
7. CHENG Z F, CHEN R B. License plate location method based on modified HIS model of color image[C]. Proceedings of 9th International Conference on Electronic Measurement and Instruments, Beijing, China, 2009: 197-201.
8. LI W J, LIANG D Q, ZHANG Q, et al. A novel approach for vehicle license plate based on edge color pair[J]. Chinese Journal of Computer, 2004, 27(2): 204-208.
9. SHEN Y W, ZHANG ZH. Approach for vehicle license plate locating based on edge detection with feature color[J]. Chinese Journal of Scientific Instrument, 2008, 29(12): 2673-2677.
10. LUO Z W, CAO J. Vehicle license plate location algorithm based on gray level variation and color features[C]. Proceedings of the 2009 2nd International Congress on Image and Signal Processing, Tianjin, China, 2009.
11. WANG M, SU G D, WANG G H. Vehicle license plate location and object authenticity confirmation under complex environments[J]. Optics and Precision Engineering, 2009, 17(4): 886-894.
12. ZHENG D N, ZHAO Y N, WANG J X. An efficient method of license plate location[J]. Pattern Recognition Letters, 2005, 26(25): 2431-2438.
13. QIN R. Edge information extraction algorithm for CT cerebrovascular medical image based on neural network[J]. Journal of Electronic Measurement and Instrument, 2010, 24(4): 346-352.
14. LANG X P, ZHU F, HAO Y M, et al. Fast two-dimensional Otsu algorithm based on integral image[J]. Chinese Journal of Scientific Instrument, 2009, 30(1): 39-43.
15. HU M, LI M, WANG R G. Application of an improved Otsu algorithm in image segmentation[J]. Journal of Electronic Measurement and Instrument, 2010, 24(5): 443-449.