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Digital speckle correlation method of multi-scale wavelet noise reduction
- Authors
- Li, X.-Z.; Dai, Q.; Wang, X.-J.; Seo, J.W.
- Issue Date
- 2007
- Keywords
- Image processing; Multi-scale; Speckle correlation; Wavelet transform
- Citation
- Guangxue Jingmi Gongcheng/Optics and Precision Engineering, v.15, no.1, pp.57 - 62
- Volume
- 15
- Number
- 1
- Start Page
- 57
- End Page
- 62
- ISSN
- 1004-924X
- Abstract
- A novel Digital Speckle Correlation Method (DSCM) based on multi-scale wavelet noise reduction is proposed. Speckle patterns with Gaussian white noise or Salt and pepper noise or Poisson noise are decomposed using symlets wavelet family and processed by different noise reduction strategies. Compared with the traditional DSCM, the accuracy of this new method is improved dramatically and the relative error is less than 1%. Meanwhile, the calculated consuming time is decreased to half of the traditional DSCM.
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Related Researcher
- Seo, Jong Wook
- Engineering (Electronic & Electrical Engineering)