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Boundary description and measurement with sub-pixel/-voxel accuracy

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1 Author(s)
Mullikin, J.C. ; Fac. of Appl. Phys., Delft Univ. of Technol., Netherlands

A sub-image element (imel) model is developed for boundary-based measurements. Using Laplacian-Of-Gaussian operators in combination with a facet model, boundary points in an image are detected with sub-imel accuracy. A boundary trace of these points is inferred using the methods of curvature consistency. From the boundary trace, separate boundaries are identified and analyzed. Types of measurements extracted include whether a boundary is open or closed, its length (area in 3-D), average curvature and bending energy. For display, boundaries are modeled with Bezier curves/surfaces and plotted/rendered with graphics tools. This method is also designed to directly process anisotropically sampled images

Published in:

Pattern Recognition, 1992. Vol.III. Conference C: Image, Speech and Signal Analysis, Proceedings., 11th IAPR International Conference on

Date of Conference:

30 Aug-3 Sep 1992