Application of Contourlet in Research of Rough Surface Topography
Since the tribology properties of rough surfaces are closely related to its topography, one of the most important ingredients in tribology research is to find an appropriate tool to analyze and characterize rough surfaces. The elementary theory of contourlet which is a good method for multi-scale and multi-direction signal analysis was introduced and an application of contourlet in rough surface analysis was demonstrated. It was found that contourlet is more sensitive to curved features than general two dimensional wavelets; it is possible to become a new powerful tool for rough surface analysis and characterization.
Runhua Tan, Jibing Sun and Qingsuo Liu
C. Zhou and C. H. Gao, "Application of Contourlet in Research of Rough Surface Topography", Advanced Materials Research, Vols. 542-543, pp. 115-118, 2012