… theoretical analysis of the gain and fidelity in two-wave mixing … , a real image has two-dimensional
spatial dependence. … of the gain and fidelity of the image amplification, which is the …

… We start by defining a basic test object that has the property that it has a spatial position, a
finite total brightness, but no spatial extent. This test object is called a unit impulse S[x,y] and …

… The spatial fidelity of image amplifiers using two-wave mixing has been studied, neglecting
diffraction effects [ 161, [17]. The conjugation of nonuniform beams in Kerr media has been …

… Image degradation due to the nonuniform pump beam … analysis of the image degrada tion
due to spatial gain variation at … transform lens, dif ferent spatial components of the input im age …

… images, because the noise is usually easy to be amplified. In the past decades, … space and
then transforms the features by several convolutional layers. In intermediate layers, the spatial …

… In Section 4 we discuss the fidelity of a photorefractive image correlator and its … is the
fidelity of photorefractive correlators, the analysis presented here is also useful for other image-…

… a default image, provides both a total flux estimate and low spatial frequencies unsampled
… To avoid noise amplification at the edge of the image MIRIAD does not totally correct for the …

… On pure physical compensation basis, results revealed that the image fidelity was improved
… images using only free space propagation to show intrinsic improvement in image fidelity. …

… images, we propose a battery of evaluation metrics that contemplate both spectral fidelity and
spatial … The wavelet-based approach permits the amplification of both spatial and spectral …

… in the space of images to find better quality images in terms of … assess the structural fidelity
between two images of different … initial image, the proposed algorithm moves the image along …