Dissertation > Excellent graduate degree dissertation topics show

The Research of Vehicle License Plate Locating System

Author: ZhouJianGuo
Tutor: ChengZuo
School: Nanjing University of Aeronautics and Astronautics
Course: Communication and Information System
Keywords: License Plate Segmentation Horizontal variance Mathematical Morphology
CLC: TP391.4
Type: Master's thesis
Year: 2002
Downloads: 328
Quote: 3
Read: Download Dissertation

Abstract


Car license plate automatic recognition system is the traffic department to solve one of the scientific research project. This system is through the CCD camera acquisition monitoring and identifying common car body image data, and assume that camera fixed installation position, the vehicles from fixed position, fixed direction through camera. According to the registration and body background segmentation problems, the article proposes a kind of based on the transverse variance and mathematical morphology method of image segmentation. The method according to the license plate image regional transverse gray value change frequency is bigger this feature puts forward the transverse variance parameters, and connecting with the license plate characters spacing, stroke weight, gray peak and valley value, length-width ratio characteristics of the coarse position of the license plate, the license plate in the precise orientation in the use of mathematical morphology method. We in a highway toll station field photographs from more than 1000 picture as the sample data. These sample photos contains almost all kinds of China's current licence style, and largely reflects all kinds of light, the weather and other natural conditions of the situation. In view of this more than 1000 pictures, the algorithm positioning accuracy can reach 95%, positioning time about 0.5 S.

Related Dissertations

  1. Tongue Feature Extraction and Research of Fusion Classification,TP391.41
  2. The Properties of Laser Speckle Based on the Mathematical Morphology,O29
  3. Road extraction algorithm based on region segmentation of remote sensing image,TP751
  4. Technology of Blood Vessel Diameter Measurement Automatic Based on Digital Image Processing,R310
  5. The Application of Ant Colony Algorithm in Meteorological Satellite Cloud Pictures Segmentation,TP391.41
  6. Based on high-resolution remote sensing data mining houses information extraction,TP751
  7. Research and Implementation of Dwt-based Video Codec System at Low Bit Rates,TN919.81
  8. Haze environment image enhancement algorithm and its application,TP391.41
  9. Study on Algorithms of Airborne LiDAR Point Cloud Data Filtering,TN713
  10. The Study of Segmentation and Connection Method on Jacquard Pattern,TP391.41
  11. Mathematical Morphology in land subsidence research applications,P642.26
  12. An Asphalt Pavement Crack Identification Key Technologies Based on Image Analysis,TP391.41
  13. Spike Sorting,TN911.7
  14. Research on Single Phase-to-Ground Fault Line Selection of Small Current Ground System Based on Mathematical Morphology,TM862
  15. Research on the Theory and Application of Soft Multivariate Morphology Based on Fuzzy Logic,TP391.41
  16. The Image Edge Detection Algorithm Research of Black Piece Defect Inspecting System Based on Machine Vision,TP391.41
  17. Research on the Method of Mobile Robot Visual Navigation Based on Edge Detection,TP242
  18. Research on Detection Technology for Cracks of Coal Conveyor Belt,TP391.41
  19. Research of Related Technologies on License Plate Recognition System,TP391.41
  20. Accessible Human-Computer Interaction Based on EOG,TP391.41
  21. Research on the Binary Image Steganoraphy and Analysis Technology,TP391.41

CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices
© 2012 www.DissertationTopic.Net  Mobile