Partial matching accuracy indices for shapes

Shigehiro Fukushima; Zi Liuk Zheng; Yukiyasu Yoshinaga

doi:10.1002/scj.10550

Partial matching accuracy indices for shapes

Shigehiro Fukushima, Zi Liuk Zheng, Yukiyasu Yoshinaga

Research output: Contribution to journal › Article › peer-review

Abstract

Indices are proposed to measure the partial matching accuracy for outlines of shapes such as those identified only partially due to occlusion and with limited region of interest. The figure catching rate and the partial matching rate curves are defined. The fractional area under the curve represents effectively the matching accuracy. More intuitive indices are the catching and matching distances. The indices are illustrated with an example of application to evaluation of gastric outlines recognized in double-contrast gastric radiograms. Gastric regions delineated by a computer are compared with tracings by a radiologist, in an attempt to evaluate numerically the accuracy.

Original language	English
Pages (from-to)	50-58
Number of pages	9
Journal	Systems and Computers in Japan
Volume	35
Issue number	6
DOIs	https://doi.org/10.1002/scj.10550
Publication status	Published - Jun 15 2004

All Science Journal Classification (ASJC) codes

Theoretical Computer Science
Information Systems
Hardware and Architecture
Computational Theory and Mathematics

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AB - Indices are proposed to measure the partial matching accuracy for outlines of shapes such as those identified only partially due to occlusion and with limited region of interest. The figure catching rate and the partial matching rate curves are defined. The fractional area under the curve represents effectively the matching accuracy. More intuitive indices are the catching and matching distances. The indices are illustrated with an example of application to evaluation of gastric outlines recognized in double-contrast gastric radiograms. Gastric regions delineated by a computer are compared with tracings by a radiologist, in an attempt to evaluate numerically the accuracy.

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Partial matching accuracy indices for shapes

Abstract

All Science Journal Classification (ASJC) codes

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