Dissertation > Excellent graduate degree dissertation topics show

Design and Implementation of Image Matching System in Application for Multi-target LED Chips Locating

Author: JuJinBin
Tutor: ZhangYan
School: Harbin Institute of Technology
Course: Microelectronics and Solid State Electronics
Keywords: image matching parallel algorithm phase correlation visual location multi-peak search
CLC: TP391.41
Type: Master's thesis
Year: 2012
Downloads: 14
Quote: 0
Read: Download Dissertation


LED lighting technology is becoming mainstream depending on its excellentfunctionality, safety and comfort. The central part of LED lighting is LED chip.LED die bonder, as a critical process machine in LED production, works on locating,picking and sticking process of LED chips production.For accurate location, detection and classification of semi-finished LED chips,image matching system plays an essential role in the LED die bonder, determiningits performance and quality. This thesis researches the feasibility of optimizationand parallel hardware acceleration of image matching algorithm from two aspects,the matching correlation function and fast serearch strategy, and presents aoptimized image matching algorithm design applied in multi-target locating. Thewhole research includes:Firstly, based on the conditions including multiple targets, sub-pixel accuracyand real-time requirements, the study analyzed several image matching algorithmsbased on respectively frequency-domain and spatial-domain characteristics; andextracted a fast matching method fully exploiting the existing hardware potentialand possessing possibility for further optimization.Furthermore, combined the frequency-domain and spatial-domain algorithm,this thesis presented a matching method based on phase correlation, Fast Fouriertransform (FFT) and polar coordinate transform. A denominator-normalized powerspectrum is taken to achieve multi-target locating, an improved Fourier-Mellinmethod is taken to calculate the angle of rotation, and a two-dimensional surfacefitting method is taken to figure out coordinates in sub-pixel accuracy.Finally, this thesis presented a well-designed functional image matching systemby implementing the design methods and programming techniques of high-speedimage matching algorithm, optimzing core computing parts of the matchingalgorithm of the FFT operation and multi-peak search algorithm, designed forhardware parallel optimization with the Intel SSE2instruction set and the NVIDIACUDA platform. The experimental results show that our developed image-matchingalgorithm system adapts to the rotation interference of targets, and meets thereal-time and accuracy requirements of real application.

Related Dissertations

  1. Research on Parallel Frequent Graph Pattern Mining,TP311.13
  2. A Study on the Technology of the Infrared Image Matching,TP391.41
  3. Study on UAV Borne Dual Combination of Wide Angle Digital Camera Image Data Processing Methods,P231
  4. Target Range Based on Visual and Infrared Automotive Night Vision System,TP391.41
  5. Design and Implementation of High Performance Image Correlator Based on SOPC,TP391.41
  6. Helmet based on image processing spatial position measurement,TP391.41
  7. Copy the image area tamper detection technology,TP391.41
  8. Study on GIS-based Spatial Analysis in Battlefield Circumstance,P208
  9. Research on Airborne Transient Electromagnetic 2.5-D Forward Modeling,P631.325
  10. Research and Implementation of Real-time Seamless Panoramic Image Mosaic Technology,TP391.41
  11. Research on Phase Correlation Current Differential Protection of Transmission Line,TM771
  12. Parallel Two-Phase Flow Simulations and Its Implications Using the Lattice Boltzmann Method,O359
  13. Study of Parallel Algorithms for Large-Scale Support Vector Machine Problems,TP18
  14. Feature Points Matching and 3D Reconstruction of Object,TP391.41
  15. Air -dimensional image based on the relative height of automatic acquisition method,TP391.41
  16. Study on General Purpose GPU Computing in Classification Algorithms,TP332
  17. Numerical Studies on Intense Laser Ionization of Hydrogen-clusters by Parallel Computing,O562.4
  18. The Design and Implementation of Virtual Microscopy System,TH742
  19. Protein Folding Prediction Based on Parallel Hybrid Particle Swarm Optimization Algorithm,TP301.6
  20. Study of Wood CT Image Registration,TP391.41
  21. The Research on Automatic Relative Orientation and Model Connection of the Unmanned Aerial Vehicle Remote Sensing Images with High Precision and High Reliability,V243.5

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