Dissertation > Excellent graduate degree dissertation topics show

Image Processing Based on Lifting Wavelet and Canny Algorithm of PSO

Author: YanZuo
Tutor: GaoBingKun
School: Northeast University of Petroleum
Course: Communication and Information System
Keywords: Image edge detection lifting wavelet Canny algorithm particle swarmoptimization algorithm the double threshold
CLC: TP391.41
Type: Master's thesis
Year: 2013
Downloads: 39
Quote: 0
Read: Download Dissertation

Abstract


With the rapid development of computer technology and image communicationtechnology, analysis and Research on image edge has also become the key step in signal andimage processing field. In general, the traditional edge detection to detect through calculationand setting the threshold, has been unable to meet the requirements of the modern computerprocessing technology and image communication technology requirements. So far, a lot ofresearch use a method to detect, and the most starting point is based on wavelet analysis,mathematical morphology,fuzzy mathematics and network theory. Therefore, in most cases,they are unable to get satisfying result.In this paper, Aiming at some shortcomings of Canny algorithm，combined with waveletanalysis and Canny algorithm, the selection of wavelet base is three B spline wavelet, mainlyusing the lifting wavelet to decomposition and reconstruction of image and using particleswarm optimization double threshold improve Canny edge detection operator, usingadvantages of itself respectively do the image processing, finally reach the better the goal ofedge detection.Secondly, this paper studies the basic theory of wavelet transform and particle swarmoptimization, improves particle swarm optimization algorithm of single objective function forthe dual objective function, the double objective function selected respectively image graymean and gray variance, use them to search high and low threshold of a image. The specificsteps are given in the paper, which is applied to the double threshold steps of the traditionalCanny algorithm, and then with three B spline wavelet is based on the combination of edgedetection, common to image edge detection,finally through simulation and comparison andanalysis of the results, proves that edge detection method in this paper, the improvement is theeffectiveness and practicability.Based on methods with the current widely used wavelet and Canny, this algorithm canmake full use of the advantages of the two methods,and this improved algorithm is applied tobrain CT in the telemedicine system in the image, with doing the simulation experiment anddo have certain effect.

Related Dissertations

  1. Performance Analysis of Anti-Multipath Capability in DSSS System and Study on the Compensation Methods,TN914.42
  2. Design and Implication of Image Compression System Based on Wavelet and DM6446,TP391.41
  3. Based on Lifting Scheme Wavelet Packet Transform and Artificial Neural Network Wing-box Multi-damage Detection,V224
  4. Directionality of 3D Surface Textures by using Adaptive Directional Lifting Wavelet Tranform,TP391.41
  5. Study of the Signal Denoising Method Based on the Lifting Wavelet Theory,TN911.4
  6. The Realization and Study of a Scalable Data Encoder Based on SPIHT,TN762
  7. Edge Detection of Images Based on Dyadic Wavelet,TP391.41
  8. Using wavelet transform and optimize embedded block truncation coding for image compression,TP391.41
  9. Windowed Lifting Wavelet Packet in Fault Location for Research,TM755
  10. Concealed Weapon Detection Research Based on Image Fusion,TP391.41
  11. Study on the Digital Audio Watermarking Technique,TP309.7
  12. Image Edge Detection Technique,TP391.41
  13. Wavelet moment method for solving electromagnetic scattering problems in applied research,O441
  14. Research on Detection for Dripping Irrigation Pipe Holes Based on Computer Vision,TP391.41
  15. Research and Implementation on Content-based Medical Image Retrieval,TP391.41
  16. A Research and Implementation of JPEG2000 Compression Technology on OMAP3530,TP391.41
  17. Research of Image Segmentation Extaction Based on FPGA,TP391.41
  18. Researching on Image Processing Based on DSP,TP391.41
  19. Study on Silicon-Based Raman Laser Application in the Measurement of Gases Concentration,TN248.1
  20. The Study of Image Template Matching in the Piece Detection,TP391.41
  21. Coastline Detection by Using SAR Data,TN957.52

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