Dissertation > Excellent graduate degree dissertation topics show

Research on the Key Technologies of Parts Geometrical Size Measurement System Based on Image

Author: ZhangZuo
Tutor: ZhangJiaLiang
School: Donghua University
Course: Mechanical Manufacturing and Automation
Keywords: Image processing Geometric measurement Edge Detection Sub-pixel
CLC: TP391.41
Type: Master's thesis
Year: 2008
Downloads: 59
Quote: 0
Read: Download Dissertation

Abstract


With the development of state-of-the-art manufacturing technology, the traditional measurement techniques and measurement range has gradually can not meet the requirements of modern machinery manufacturing technology increasingly attracted the attention of the majority of engineering and technical personnel, and the parts of the image-based geometric measurement method. Geometric measurements based on the parts of the image having a non-contact, suitable for measuring easily deformable traditional measurement methods of the minute-size and slit width, the droplet diameter is difficult to measure the specific dimensions of the advantages, and in terms of measurement efficiency and convenience of the measurement has a special the advantage, thereby obtaining a wide range of applications. Hardware configuration, this paper focuses on the impact to this topic final measurement accuracy of the digital camera and lighting system. According to the needs of enterprises and the actual engineering of the image in the image processing and measurement type conversion, noise removal, image binarization, edge detection theory and algorithms through experiments comparing the effects of the various algorithms for this the subject of the image processing program, and using a modular approach to the entire measurement system is divided. In the process of image processing, in order to improve the measurement accuracy and to ensure that the measurement speed, based on the image gray distribution theory and image sampling theory, based on the traditional template operator to determine the approximate location of the edge, combined with local non-maxima suppression technology eliminates the pseudo-boundary points along the direction of the gradient of the boundary points of the Gaussian curve interpolation, position location of the boundary points to a sub-pixel level. The boundary characteristic boundary points extracted using the method of least squares fitting, and the measurement of dimensions and tolerances in accordance with the relevant theoretical and standards. Based on the above studies, in support of military projects and business needs, the development of this project design geometric measurement system based on the parts of the image. The software system can be achieved not only the conventional parts of the two-dimensional geometrical tolerance measurements, and can be integrated in the software \The subject of the measurement system accuracy testing and analysis, precision gauge block measurements showed that the measurement accuracy of the image measuring system of the micron level; addition, as to adapt the system by measuring the width of the chip pin in the microelectronics industry The measurement results prove that the software system has practical value and versatility.

Related Dissertations

  1. Research on Temperature Measurement Technique Based on CCD Image Sensor,TH811
  2. Research on Basic Algorithms of Digital Image Processing and Implementation with FPGA,TP391.41
  3. Research of Images Enhancing Algorithms on Fog or Backlighting Conditions and Implementation with Hardwares,TP391.41
  4. Research on the Image Real-Time Acquisition, Storage and Image Processing System,TP391.41
  5. The Research of Moving Object Tracking System Based on Embeded Image Process Unit,TP391.41
  6. Research on Visual Servo System of Mechanical ARM,TP242.6
  7. Application Research of Digital Image Processing on Container Inspection,TP274.4
  8. Three-Dimensional Numerical Modelling for the Head and the Electric Field Analysis of DBS,R742.5
  9. Application of Semi-Structure in Leisure Dress,TS941.2
  10. Research on Nondestructive Detection Technology for External Qualities of Papayas Based-on Vision,S667.9
  11. Research on Detecting Optical Fiber Geometric Parameter Based on Machine Vision,TN253
  12. Research on Identification System of Cashmere and Wool Fiber,TS101.921
  13. Design of Garlic Planting Sorting Machine Based on Image Processing,S223.2
  14. Study on Detection and Grading of ’Jiro’ Persimmon’s External Quality Based on Computer Vision,S665.2
  15. Flow Behavior Description of Two-Phase Flow Based on Image Processing Techniques,TP391.41
  16. Active faults based radar image information extraction method applied research and demonstration,P542.3
  17. Research on Abnormal Vehicle Behavior Detection and Application in Traffic Video,TP391.41
  18. Research on License Plate Location Algorithm of License Plate Recognition System,TP391.41
  19. The Designing of HD Vehicle Detection System Based on Fpga,TP391.41
  20. System Designing to Analysis the Real-time Density of Group-control Elevator Passengers Flow,TP391.41
  21. Research on Face Recognition Methods Based on Flexible Neural Tree,TP391.41

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