Dissertation > Excellent graduate degree dissertation topics show

Numeral recognition technology based on image processing

Author: DiJun
Tutor: LeiJinHui
School: Kunming University of Science and Technology
Course: Computer Software and Theory
Keywords: Character recognition License Plate Recognition Template matching BP neural network
CLC: TP391.41
Type: Master's thesis
Year: 2010
Downloads: 187
Quote: 0
Read: Download Dissertation

Abstract


Nearly twenty years, with the rapid development of computer vision technology , intelligent character recognition technology has been applied to more and more areas . Such as the license plate number recognition , billing identification entry , house number identification , books and scanning recognition . In the face of large amounts of data need to identify input manually is inefficient , and the error rate is high . Although the market there have been many character recognition systems , but many are only for single image information is relatively simple and standardized character recognition . But the reality is often more complex , the characters of different sizes , the presence of background noise character , the character of the tilt angle tends to affect the identification efficiency and recognition accuracy rate . This thesis focuses on this case study to design a feasible , be able to solve the license plate number recognition system in the complex case . The system through repeated experiments compare and contrast the neural network algorithm and template matching algorithm , in the case of both identify the efficiency and accuracy rate selected a practical template matching algorithm, and in the process one by one to achieve . The system includes : image preprocessing, license plate location, character recognition , the three most content . By comparing several algorithms in the feature extraction stage , the papers with a high efficiency and high recognition rate , pixel by pixel scan feature extraction method , which makes the BP network training after fast convergence . Requirements for real-time high accuracy requirements higher as well as the complexity of the environment of the network training ; seem less efficient . Therefore , when a series of practical problems encountered license plate number recognition template matching will get better recognition effect . In this thesis, the system proved by experiments for the identification of the license plate number , whether it is in Chinese characters, letters and numbers on the correct rate of more than 90% recognition speed in about 2 seconds : and complex environment has a higher adaptation can do has some practical significance .

Related Dissertations

  1. Research on Feature Extraction and Classification of Tongue Shape and Tooth-Marked Tongue in TCM Tongue Diagnosis,TP391.41
  2. Research on Visual Servo System of Mechanical ARM,TP242.6
  3. Municipal tourism land use planning environmental impact assessment,X820.3
  4. Study on Taste Characteristic of Taste Peptide Enzymatic Production from Oyster Base on A Neural Network Method,TS254.4
  5. The Research on Evaluation of Living Status Systems of Expressway Relocated People,D523
  6. Mine Risk Information Integration and Intelligent Early Warning,X936
  7. Research of Orange Quality Classification Technology Based on Computer Vision,TP391.41
  8. Research of License Plate Recognition Based on Rough Sets and Fuzzy SVM,TP391.41
  9. Optimization Study on Gating System and Molding Process Parameters of Injection Mold Based on Simulation,TQ320.662
  10. Vehicle License Plate Recognition Algorithm Based on the PowerPC Architecture,TP391.41
  11. Study on Luohe Technical Supervision Bureau of Food Safety Early Warrning System Based on Neural Network,F203
  12. Research of Adaptive Active Noise Control Based on Neural Network,TP183
  13. Research and Design on License Plate Location in Complex Background,TP391.41
  14. Drivers' eyes open or closed state of the computer image recognition technology development,TP391.41
  15. Design and implementation of intelligent transportation system based on license plate recognition technology,TP391.41
  16. Research on Automatic Reading System for Digital Meters,TP391.41
  17. Research on Feature Extraction, Selection and Classification Algorithms for Pulmonary CAD,TP391.41
  18. The Research of Evaluation Method in Connect6 Based on BP-TD Learning,TP18
  19. Research on State Diagnosis on Fan Based on Factor Analysis and BP Neural Network,F426.61
  20. The Research and Design of Converter Steelmaking Endpoint Guiding System,TF345
  21. Analysis on Water Ecological Carrying Capacity of Jiangxi Province,TV213.4

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