Dissertation > Excellent graduate degree dissertation topics show

Research and Implementation of a Portable System for Characters of Scanning and Recognizing

Author: DengWei
Tutor: PanMengChun
School: National University of Defense Science and Technology
Course: Instrument Science and Technology
Keywords: ARM CMOS image sensor USB Video Compression Video frame dynamic stitching
CLC: TP391.41
Type: Master's thesis
Year: 2007
Downloads: 60
Quote: 0
Read: Download Dissertation


With the growing popularity of information technology and computer technology , how to be more convenient , fast and accurate useful text information is entered into the computer , has become a key issue in the modern information processing , optical character recognition technology has become the text the best choice of automatic identification input , often as an image scanner scan tool . In this paper, on the basis of in-depth study of embedded technology , design a portable text scanning identification system . The system replaces traditional scanner can achieve real-time video capture text image , and after a series of video processing , reconstruction of an image of text , and then use the modern mature optical character recognition technology , achieve automatic recognition input text . The main work is as follows : First, select the ARM processor for image processing , design a portable video image acquisition system , hardware highlight the small size , portable as well as support for video processing features prominent characteristics of real-time software to complete real-time Linux CMOS image sensor and USB access device driver platform design . Second, on the basis of the sequence of video images frame by frame binarized , stroke - based encoded video frame compression method , to achieve the effective transmission of the video image ; dynamic splicing method based on the video lens and motion estimation of video frames at the same time , the reconstructed static text, images , and laid a good foundation for character recognition . Third , design the application software on the PC , USB drive design , the OCR module call , and application design . In short , this article uses a portable system to realize automatic recognition of the text input, the recognition speed and recognition rate is satisfactory , the overall performance is good .

Related Dissertations

  1. Design of Electronicalcontrol System for Electronic Jacquard Knitting Machine,TS183
  2. Research on the Integrated Grating Subdividing Digital Display Device Based on DSP,TH822
  3. The Electric Power Steering System,U463.4
  4. Rate-distortion Optimization Based Rate Control,TN919.81
  5. Optimizing and Realising Research on Vedio Compression in TV Guidance System,TN919.81
  6. Development of Experimental Robot Control System Based on ARM,TP242.6
  7. Development of 3-Dimensional Scanning Probe Data Acquisition System Based on DSP,TP274.2
  8. Development of Inductance Sensor Data Acquisition System Based on FPGA,TP274.2
  9. Data Collecting and Processing of Multi-Linear-CCD Visual Measuring System,TP274.2
  10. Research on Visual Servo System of Mechanical ARM,TP242.6
  11. Research on Software of TFT-LCD Testing Equipment Based on ARM,TN873.93
  12. Study of An Embedded Chinese Medical Therapeutic Apparatus,R197.39
  13. Development of Intelligent Interpretation System Based on ARM9,TP391.44
  14. Study on Dynamic Electrocardiogram Monitoring System and Electrocardiosignal Processing Method,TH772.2
  15. Borehole imaging device based on embedded systems research,P634.3
  16. Remote areas, distribution transformer monitoring system design theft,TM421
  17. Research and Design of Multi-Functional Wireless Mouse,TP334.2
  18. Research of Ultrasonic Testing System Based on ARM Controller,TP274.53
  19. Research of Infrared Radiation Temperature Measure System Based on μC/OS-Ⅱ,TN215
  20. DPU Improvement Design and Realization of SupMAX800D Distributed Control System,TP273.5
  21. Design and Realization of a RFID System’s Base-band Part Based on ARM920t,TP391.44

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