Three Dimensional Concentration Index: A Local Feature for Analyzing Three Dimensional Digital Line Patterns and Its Application to Chest X-Ray CT Images

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ICPR '98 Proceedings of the 14th International Conference on Pattern Recognition-Volume 2 - Volume 2
Year:
1998

Citing 3
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Abstract

We propose a new local feature called three dimensional (3D) concentration index for analyzing line texture patterns in the 3D space. This feature can be used for evaluating quantitatively local concentration of lines at each point of a 3D line pattern. In the paper, simulations using artificial patterns is performed to examine basic properties of the index. The index is also applied to patterns of vessels and bronchi extracted from practical chest X-ray CT images. As a result, it is shown that 3D concentration index can be used to quantify the degree of convergence of vessels and bronchi to a tumor.