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MEDINFO
2007

Automatic Image Modality Based Classification and Annotation to Improve Medical Image Retrieval

7 years 1 months ago
Automatic Image Modality Based Classification and Annotation to Improve Medical Image Retrieval
Medical image retrieval can play an important role for diagnostic and teaching purposes in medicine. Image modality is an important visual characteristic that can be used to improve retrieval performance. Many test and online collections do not contain information about the image modality. We have created an automatic image classifier for both grey-scale and colour medical images. We evaluated the performance of the two modality classifiers, one for grey-scale images and the other for colour images on the CISMeF and the ImageCLEFmed 2006 databases. Both classifiers were created using a neural network architecture for learning. Low level colour and texture based feature vectors were extracted to train the network. Both classifiers achieved an accuracy of > 95% on the test collections that they were tested on. We also evaluated the performance of these classifiers on a selection of queries from the ImageCLEFmed 2006. The precision of the results was improved by using the modality cla...
Jayashree Kalpathy-Cramer, William R. Hersh
Added 30 Oct 2010
Updated 30 Oct 2010
Type Conference
Year 2007
Where MEDINFO
Authors Jayashree Kalpathy-Cramer, William R. Hersh
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