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

Author

Mullikin, James C.

Author_Institution

Fac. of Appl. Phys., Delft Univ. of Technol., Netherlands

fYear

1992

fDate

30 Aug-3 Sep 1992

Firstpage

6

Lastpage

8

Abstract

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

Keywords

image processing; Bezier curves/surfaces; Using Laplacian-Of-Gaussian operators; anisotropically sampled images; average curvature; bending energy; boundary trace; boundary-based measurements; curvature consistency; facet model; graphics tools; image processing; sub-image element model; sub-pixel accuracy; sub-voxel accuracy; Anisotropic magnetoresistance; Area measurement; Design methodology; Displays; Energy measurement; Face detection; Graphics; Length measurement; Process design; Rendering (computer graphics);

fLanguage

English

Publisher

ieee

Conference_Titel

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

Conference_Location

The Hague

Print_ISBN

0-8186-2920-7

Type

conf

DOI

10.1109/ICPR.1992.201914

Filename

201914