SINGLE-QUADRANT ANALYTIC IMAGES FOR 2-D DISCRETE WIGNER-VILLE DISTRIBUTION

摘要

The cross-term Interference and the aliasing prevent Wigner-Ville distribution (WVD) to be the ideal tool in spatlallspatlal-frequency (SSF) analysis of real images. A solution to reduce and even eliminate these artifacts is the use of 2-D analytic images in computing the 2-D WVD. In this paper, it is shown that the use of single-quadrant analytic Images eliminates the aliasing and highly reduces the cross-term interference, and can provide a SSF representation having the same spatial-frequency resolution and support as the analyzed real Image.