| CHUI Ming-wei,FENG You-qian,WANG Wei,LI Zheng-chao,XU Xiao-dong.The Application of Nonsubsampled Contourlet Transform in Surface Topography Evaluation[J],42(1):123-126 |
| The Application of Nonsubsampled Contourlet Transform in Surface Topography Evaluation |
| Received:August 13, 2012 Revised:September 16, 2012 |
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| DOI： |
| KeyWord:3 D surface topography nonsubsampled contourlet transform surface topography evaluation |
| Author | Institution |
| CHUI Ming-wei |
Air-defense and Anti-missile Institute, Air Force Engineering University, Xi'an , China |
| FENG You-qian |
Science Institute, Air Force Engineering University, Xi'an , China |
| WANG Wei |
Air-defense and Anti-missile Institute, Air Force Engineering University, Xi'an , China |
| LI Zheng-chao |
PLA Foreign Language Institute, Luoyang , China |
| XU Xiao-dong |
Air-defense and Anti-missile Institute, Air Force Engineering University, Xi'an , China |
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| Abstract: |
| Aiming at the defects of the Gaussian filter and Wavelet filter, the nonsubsampled contourlet transform was applied in the 3 D surface topography evaluation. 3 D surface topography was divided into different scales subbands, and the subbands belonging to roughness, waviness and shape components were determined by the filter cut-off wavelength, and then the different components were generated by nonsubsampled contourlet inverse transform. At last, a actual measurement of 3 D surface topography were analyzed to verify the effectiveness of the proposed method. |
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