Rotation-invariant projection-slice filter

Vahid R. Riasati; Partha P. Banerjee; Mustafa A. G. Abushagur; Don A. Gregory

doi:10.1117/12.304768

23 March 1998 Rotation-invariant projection-slice filter

Vahid R. Riasati, Partha P. Banerjee, Mustafa A. G. Abushagur, Don A. Gregory

Proceedings Volume 3386, Optical Pattern Recognition IX; (1998) https://doi.org/10.1117/12.304768
Event: Aerospace/Defense Sensing and Controls, 1998, Orlando, FL, United States

Abstract

In this paper the projection-slice SDF (PSDF) filter for rotation invariant response is discussed for pattern recognition applications. This method uses one half of a slice of the Fourier transform of the object to generate the transfer function of the filter. This is accomplished by repeating the half slice in the Fourier domain through 2(pi) radians about the zero-frequency point of the Fourier plane. This filter has the advantage of always matching at least one half of a slice of the Fourier transform of any rotation of the image. An analytical discussion of the filter transfer function and impulse response are presented along with simulated correlation results for a particular target scene including decoys. These results are evaluated using the peak correlation value, peak correlation energy, and the Fisher metric for performance.

Citation Download Citation

Vahid R. Riasati, Partha P. Banerjee, Mustafa A. G. Abushagur, and Don A. Gregory "Rotation-invariant projection-slice filter", Proc. SPIE 3386, Optical Pattern Recognition IX, (23 March 1998); https://doi.org/10.1117/12.304768

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