Kanwal, Nadia and Ehsan, Shoaib and Clark, Adrian F (2011) Are Performance Differences of Interest Operators Statistically Significant? In: Computer Analysis of Images and Patterns. Lecture Notes in Computer Science (6855). Springer, pp. 429-436. ISBN 978-3-642-23677-8. Official URL: http://dx.doi.org/10.1007/978-3-642-23678-5_51
Kanwal, Nadia and Ehsan, Shoaib and Clark, Adrian F (2011) Are Performance Differences of Interest Operators Statistically Significant? In: Computer Analysis of Images and Patterns. Lecture Notes in Computer Science (6855). Springer, pp. 429-436. ISBN 978-3-642-23677-8. Official URL: http://dx.doi.org/10.1007/978-3-642-23678-5_51
Kanwal, Nadia and Ehsan, Shoaib and Clark, Adrian F (2011) Are Performance Differences of Interest Operators Statistically Significant? In: Computer Analysis of Images and Patterns. Lecture Notes in Computer Science (6855). Springer, pp. 429-436. ISBN 978-3-642-23677-8. Official URL: http://dx.doi.org/10.1007/978-3-642-23678-5_51
Abstract
The differences in performance of a range of interest operators are examined in a null hypothesis framework using McNemar’s test on a widely-used database of images, to ascertain whether these apparent differences are statistically significant. It is found that some performance differences are indeed statistically significant, though most of them are at a fairly low level of confidence, i.e. with about a 1-in-20 chance that the results could be due to features of the evaluation database. A new evaluation measure i.e. accurate homography estimation is used to characterize the performance of feature extraction algorithms.Results suggest that operators employing longer descriptors are more reliable.
Item Type: | Book Section |
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Additional Information: | 14th International Conference, CAIP 2011, Seville, Spain, August 29-31, 2011, Proceedings, Part II |
Uncontrolled Keywords: | Feature extraction, homography, McNemar's test |
Subjects: | Q Science > QA Mathematics > QA75 Electronic computers. Computer science |
Divisions: | Faculty of Science and Health > Computer Science and Electronic Engineering, School of |
Depositing User: | Clare Chatfield |
Date Deposited: | 10 Sep 2014 09:27 |
Last Modified: | 10 Sep 2014 09:27 |
URI: | http://repository.essex.ac.uk/id/eprint/9215 |