Fast computation of exact Zernike moments using cascaded digital filters

Lim, C.L. and Honarvar, B. and Thung, K.H. and Paramesran, Raveendran (2011) Fast computation of exact Zernike moments using cascaded digital filters. Information Sciences, 181 (17). pp. 3638-3651. ISSN 0020-0255,

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Zernike moments have been extensively used and have received much research attention in a number of fields: object recognition, image reconstruction, image segmentation, edge detection and biomedical imaging. However, computation of these moments is time consuming. Thus, we present a fast computation technique to calculate exact Zernike moments by using cascaded digital filters. The novelty of the method proposed in this paper lies in the computation of exact geometric moments directly from digital filter outputs, without the need to first compute geometric moments. The mathematical relationship between digital filter outputs and exact geometric moments is derived and then they are used in the formulation of exact Zernike moments. A comparison of the speed of performance of the proposed algorithm with other state-of-the-art alternatives shows that the proposed algorithm betters current computation time and uses less memory.

Item Type: Article
Uncontrolled Keywords: Computer Science; Information Systems;
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Depositing User: Zanaria Saupi Udin
Date Deposited: 26 Aug 2011 04:09
Last Modified: 20 Sep 2019 08:32

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