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- W4321274201 abstract "The Fourier-Mellin image descriptors (FMDs) are invariant to both a scale and a rotation change in the input image. The FMDs can be calculated by using a computer, but the computational load is heavy. 1 In this paper, we have proposed a method for calculating the accurate values of the FMDs of binary patterns constructed by rectangular pixels. This method was successfully applied to the calculation of the FMDs of all the alphanumeric characters that are more complicated patterns than squares, square frames, and rectangles. The results clearly show the information properties of the FMDs, some do not provide enough information for discrimination between characters and others just emphasize the same parts. It is known 1,2 that the values of the high-order FMDs are dominated by the outer portion of a visual pattern and that the radial information from the central portion is suppressed. A suggestion has been made to reduce the unbalance in information extraction." @default.
- W4321274201 created "2023-02-18" @default.
- W4321274201 creator A5019963637 @default.
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- W4321274201 date "1990-01-01" @default.
- W4321274201 modified "2023-09-27" @default.
- W4321274201 title "Information properties of Fourier-Mellin image descriptors" @default.
- W4321274201 cites W2035062046 @default.
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- W4321274201 doi "https://doi.org/10.1364/oam.1990.fp6" @default.
- W4321274201 hasPublicationYear "1990" @default.
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