Different brightness of individual cells, which might reflect variable cell types, was observed.
Then, the integration time of the detector is calculated when detecting stars with different brightness according to the parameters of the detector we designed.
To make intensity an unreliable cue five different brightness versions of blue and seven different brightness versions of green were used as stimuli.
By selecting portions of these histograms, points in the image corresponding to regions of different brightness or number of particles can be identified.
To simulate the practical conditions which influence the performance of the AO system, targets of different brightness are simulated in terms of different signal-to-noise ratios (SNRs) of the Shack-Hartmann (SH), and atmospheric turbulence is simulated in terms of the Fried's coherence length and the Greenwood's frequency.
Different brightness means difference in the average atomic number.
In our problem, the local PSF estimates are far from being equally reliable (e.g., because of inhomogeneities of the local density of stars, different brightness, background effects, etc).. Using the prior knowledge of the PSF field being smooth helps us to discount the outliers' effect on the estimation, and, thus, to improve the results.
A limitation of the moment-analysis is that multiple species of different brightness cannot be resolved using only the first and second moments of the distribution; instead, higher moments are needed, which requires a much larger data set.
With respect to the light response, something remarkable happens when images of different brightness are presented to each eye: The pupil constricts when the bright stimulus, relative to the dark stimulus, dominates awareness (see Fig. 1).
