Dissertation > Excellent graduate degree dissertation topics show

The Basic Theory of the Second Generation Wavelet and Its Application in the Image Compression

Author: GuoLanYing
Tutor: FengHui
School: Wuhan University
Course: Computational Mathematics
Keywords: Lifting Scheme Wavelet Transform Image Compression JPEG2000 Multi-resolution analysis
CLC: O174
Type: Master's thesis
Year: 2005
Downloads: 418
Quote: 7
Read: Download Dissertation

Abstract


Currently, a very wide range of applications of the wavelet analysis , traverse the natural sciences , and many other aspects of the application of science and even the economic field , and its flexible , simple , application wider Wavelet analysis has become research focus on lifting scheme , its basic the theory of mining exploration and application level is a one of the important issues in the field of mathematics and information science . The paper analyzes the traditional wavelet transform theory , such as multi- resolution analysis , Mallat algorithm and biorthogonal wavelet filter bank . Followed by the introduction of the structure of the second generation wavelet lifting scheme, compared tradition based on the first generation wavelet filter and the second generation wavelet based on lifting scheme . Traditional Mallat algorithm using lifting scheme , as well as to construct new wavelet adaptive selection of lift coefficient method to analyze the advantage in terms of the complexity of the algorithm and wavelet construction lifting scheme . Article constructively prove the characteristics of the the improved lift coefficient increase vanishing moments of the wavelet function , vanishing moments increase means better energy concentration . This article haar wavelet and increase haar wavelet vanishing moments respectively for image compression , and given the comparative experiment results show that the latter have better compression . Finally, the article discusses the wavelet codec system analysis techniques , wavelet transform as the core of the JPEG2000 algorithm used in practical applications enhance the realization , to improve the efficiency of the algorithm . On the other hand , can be used to instead of JPEG2000 used wavelet based on lifting the format to construct a new wavelet basis to meet specific application requirements . Familiarity with and understanding to enhance the signal format can be more flexible application of wavelet analysis . In signal and image analysis , the use of the principle of lifting scheme , a new image compression algorithm further research , and to obtain better compression results .

Related Dissertations

  1. Research on Lapped Transform and Vector Quantization Based Image Coding Algorithm and Applications,TN919.81
  2. Research on Image Compression and Implementation Using TMS320C6713 Based on SPIHT Algorithm,TP391.41
  3. Research on Sparse Image Representation and Coding Model,TP391.41
  4. Feature Extraction, Selection and Combination in Lipreading,TP391.41
  5. Research on Remote Sensing Image Processing Combining High Fidelity Compression and Resolution Enhancement,TP751
  6. Research on Identification System of Cashmere and Wool Fiber,TS101.921
  7. Research on Key Technologies for Image Compression and Transmission in Telemedical System,R318.0
  8. Characteristics of sensory stimulation evoked,R318.0
  9. Network transmission ROI image coding algorithm,TN919.81
  10. Remote areas, distribution transformer monitoring system design theft,TM421
  11. Image Fusion Algorithms Based on Multi-scale Analysis,TP391.41
  12. Feature Extraction Technologies Research and Implementation of 3D Models Based on Wavelet Transform,TP391.41
  13. Research of Radar Video Compression Algorithms Based on Wavelet,TN957.52
  14. An Algorithm on Clustering and Anomaly Detection for Multiple Data Streams,TP311.13
  15. Research on Information Hiding Based on Images,TP309.7
  16. Design and Implication of Image Compression System Based on Wavelet and DM6446,TP391.41
  17. Combined DWT Dynamic Data Reconciliation Research and Application,TP274
  18. A Video Monitoring System for Anshan Power Supply Room,TP391.41
  19. Traffic Prediction Model Based on Wavelet and Markov,TP393.06
  20. The Study of Image Watermark Base on Discrete Wavelet Transformation,TP309.7
  21. The Compression and Application of the Brain CT Image,TP391.41

CLC: > Mathematical sciences and chemical > Mathematics > Mathematical Analysis > Theory of functions
© 2012 www.DissertationTopic.Net  Mobile