Key points selection by using Zernike polynomials

Costantini, Luca; Mangiatordi, Federica; Capodiferro, Licia; Neri, Alessandro

doi:10.1117/12.843835

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2011

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Cited by 1 publication

(2 citation statements)

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“…Indeed, in the unit disk the Zernike polynomials are a linear combination of the Taylor polynomials [8] .…”

Section: Fisher's Informationmentioning

confidence: 99%

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Features extraction based on Fisher's information

et al. 2011

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"In this paper a novel scheme for extracting the global features from an image. Usually the features are extracted from the whole image. In the proposed approach, only the image regions conveying information are considered. The two steps procedure is based on the Fisher's information evaluation computed by linear combination of Zernike expansion coefficients. Then, by using the region growing algorithm, only high information rate regions are considered. The considered features are texture, edges, and color. The performances of the proposed scheme has been evaluated by using the retrieval rate. Experimental results show an increase in the retrieval rate with respect to use the same features computed on whole image.

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“…Indeed, in the unit disk the Zernike polynomials are a linear combination of the Taylor polynomials [8] .…”

Section: Fisher's Informationmentioning

confidence: 99%

“…In this step we first compute the Fisher's information [7] map by using the Zernike polynomials [5], [6], [8] , then by using the region growing algorithm, we select only the image regions relevant with respect to the Fisher's information.…”

Section: Introductionmentioning

confidence: 99%