A framework for evaluating image segmentation algorithms
| Autor: | Vicki R. LeBlanc, Leanne M. Currie, Ying Zhuge, Jayaram K. Udupa, Hilary J. Schmidt, James Woodburn, Bruce Elliot Hirsch, Celina Imielinska |
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| Rok vydání: | 2005 |
| Předmět: |
Computer science
Scale-space segmentation Health Informatics computer.software_genre Application domain Image Interpretation Computer-Assisted Humans Radiology Nuclear Medicine and imaging Segmentation Reliability (statistics) Landmark Radiological and Ultrasound Technology Segmentation-based object categorization business.industry Cognitive neuroscience of visual object recognition Brain Pattern recognition Image segmentation Computer Graphics and Computer-Aided Design Radiography Evaluation Studies as Topic Diagnostic imaging Computer Vision and Pattern Recognition Artificial intelligence Data mining Clinical Medicine business computer Algorithms |
| Zdroj: | Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society. 30(2) |
| ISSN: | 0895-6111 |
| Popis: | 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 (reliability), accuracy (validity), and efficiency (viability)—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 training and for algorithm execution should be measured and analyzed. Precision, accuracy, and efficiency factors have an influence on one another. It is difficult to improve one factor without affecting others. Segmentation methods must be compared based on all three factors, as illustrated in an example wherein two methods are compared in a particular application domain. The weight given to each factor depends on application. |
| Databáze: | OpenAIRE |
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