Conference proceeding
Methodology for evaluating image-segmentation algorithms
Proceedings of SPIE, Vol.4684(1), pp.266-277
Medical Imaging 2002: Image Processing
05/15/2002
DOI: 10.1117/12.467166
Abstract
The purpose of this paper is to describe a framework for evaluating image segmentation algorithms. Image segmentation consists of object recognition and delineation. For evaluating segmentation methods, three factors - precision (reproducibility), accuracy (agreement with truth, validity), and efficiency (time taken) - need to be considered for both recognition and delineation. To assess precision, we need to choose a figure of merit, repeat segmentation considering all sources of variation, and determine variations in figure of merit via statistical analysis. It is impossible usually to establish true segmentation. Hence, to assess accuracy, we need to choose a surrogate of true segmentation and proceed as for precision. In determining accuracy, it may be important to consider different landmark areas of the structure to be segmented depending on the application. To assess efficiency, both the computational and the user time required for algorithm and operator training and for algorithm execution should be measured and analyzed. Precision, accuracy, and efficiency are interdependent. It is difficult to improve one factor without affecting others. Segmentation methods must be compared based on all three factors. The weight given to each factor depends on application.
Details
- Title: Subtitle
- Methodology for evaluating image-segmentation algorithms
- Creators
- Jayaram K Udupa - Univ. of Pennsylvania (USA)Vicki R LaBlanc - Columbia Univ. (USA)Hilary Schmidt - Columbia Univ. (USA)Celina Imielinska - Columbia Univ. (USA)Punam K Saha - Univ. of Pennsylvania (USA)George J Grevera - Univ. of Pennsylvania (USA)Ying Zhuge - Univ. of Pennsylvania (USA)L. M Currie - Columbia Univ. (USA)Pat Molholt - Columbia Univ. (USA)Yinpeng Jin - Columbia Univ. (USA)
- Resource Type
- Conference proceeding
- Publication Details
- Proceedings of SPIE, Vol.4684(1), pp.266-277
- Conference
- Medical Imaging 2002: Image Processing
- DOI
- 10.1117/12.467166
- ISSN
- 0277-786X
- Language
- English
- Date published
- 05/15/2002
- Academic Unit
- Radiology; Electrical and Computer Engineering
- Record Identifier
- 9984051996102771
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