The estimated values for the neural fusion limits (in minutes of arc) together with the upper fusion limits are plotted in Figure 4 as a function of both spatial frequency
and whether the stimuli had crossed or uncrossed disparities.
20), in the present study we detected no significant differences in CSF throughout the spatial frequency
range when the normal eyes of microtropic and anisometropic patients were compared with age-matched nomograms.
Our visual system uses spatial frequency
channels to perceive objects in situations of either high or low contrast.
This method is based on successive and random presentation of pairs of stimuli in the center of the screen: each pair consisted of a neutral stimulus and another containing the spatial frequency
The number of discretizing grids for the spatial frequency
equals 50; that is, [N.
First, sensitivity to different spatial frequency
bands is distinctively altered by conditions that affect brain function, reinforcing the notion that multiple spatial frequency
channels work in parallel on the codification of visual information (5,6).
One component of the Barten SQRI, the modulation transfer function (MTF), describes how an image-forming system (display) filters the modulation (contrast) as a function of spatial frequency
In this algorithm, the generalized Parseval's theorem is used to transform the SAR echoes from the spatial domain to the spatial frequency
Especially the Gabor wavelet can extract the image within specific regions of the multiple scale, multi direction spatial frequency
characteristics, like the microscope as enlarge face image in the eyes, nose and mouth and other local characteristic changes in the gray.
Other topics include image stabilization for digital binoculars, a small pitch tool for removing middle spatial frequency
errors, thulium-doped fiber lasers, measuring track irregularity on high-speed railways, and target recognition.
They derived the relation between the critical spatial frequency
and the film thickness and suggested that the surface modulation of thin films is likely controlled by the residual-compressive surface stress created during the separation process.
In this method, each source image is divided into sub-blocks of 32 * 32 by experience, selecting the clearest block measured by spatial frequency
to construct the fused image when the difference in the clarity between the two sub-blocks is greater than the threshold value (artificially set beforehand); otherwise, it takes the two sub-blocks and divides them into smaller blocks.
Color shifts from S-cone patterned backgrounds: contrast sensitivity and spatial frequency
Selective broadband spatial frequency
loss in contrast sensitivity functions.
The luminous difference is seen as the spatial frequency