Quad-phase correlation filters for pattern recognition

Abstract

A quad-phase-only filter (QPOF) is introduced. It is shown that the QPOF can have improved correlation response and signal-to-noise ratio with respect to the Hartley binary phase-only filter for some objects.

Review: Automatic Particle Detection in Electron Microscopy

“…Other alternatives to improve the performance of template matching include the phase only matched filter (POMF) (Horner and Gianino, 1984;Horner and Leger, 1985;Dickey and Hansche, 1989) and the symmetric phase only matched filter (SPOMF). Cross-correlation supplemented with the use of peak shape information has also been proposed to improve the performance of template matching (Caprari, 1999;Miller and Caprari, 1999).…”

Understanding Correlation Techniques for Face Recognition: From Basics to Applications

“…To overcome the saturation, the number of merged elemental images is limited to three. A fusion technique based on the segmentation of the Fourier plane is employed [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35].…”

<title>Iterative algorithm for designing binary phase-only composite filters</title>

“…Binary Phase-Only Filters have received much attention in the past ten years [1][2][3][4][5][6][7][8][9]. Most of this research has focused on the design of filters matched to a single reference image.…”