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Author:管理员1       Date: 2011-12-26 15:12:14.0
The Lecture of Dr. Lili Ju 2011-12-26

Topic: A Multichannel Edge-Weighted Centroidal Voronoi Tessellation Method for 3D Superalloy Volume Segmentations 

Reportor:    Dr. Lili Ju, University of South CarolinaUSA

 

Date: December 26, 2011   Time:14:30

Location: Zhixin Building, Room 1248, Block B

 

Abstract: In the field of superalloy material, segmentations of the 3D grains on a certain superalloy volume are often utilized to calculate mechanical and physical properties of the alloy, and further to evaluate its performance. Such segmentations are usually achieved by first manually labeling the grain boundaries on the 2D superalloy slices and then corresponding them together in the 3D space, which is very tedious and time consuming. In this talk, we present a Multichannel Edge-Weighted Centroidal Voronoi Tessellation (MCEWCVT) method for automatic segmentations of 3D superalloy volumes in the non-interactive fashion. The performance of the proposed MCEWCVT method is evaluated numerically by using the ground truth and also compared with several classic 2D segmentation methods. The experiment results demonstrate that our method is very accurate and outperforms others.