id: 06055630
dt: j
an: 06055630
au: Lim, Chern-Loon; Honarvar, Barmak; Thung, Kim-Han; Paramesran, Raveendran
ti: Fast computation of exact Zernike moments using cascaded digital filters.
so: Inf. Sci. 181, No. 17, 3638-3651 (2011).
py: 2011
pu: Elsevier Science Inc. (North-Holland), New York, NY
la: EN
cc: 
ut: Zernike moments; exact Zernike moments; geometric moments; exact geometric
    moments; fast computation; digital filters
ci: 
li: doi:10.1016/j.ins.2011.04.029
ab: Summary: 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.
rv: