Sentence examples for mean image intensity from inspiring English sources

This threshold is calculated using the triangle algorithm84 with addition of the double of the mean image intensity of each z-slice.

Signal dropout (susceptibility artifact) in ventral brain areas was assessed by thresholding each voxel's time-averaged signal to 80% of the mean image intensity to confirm that sufficient signal was present in the amygdala.

Subsequently, the nuclear lamin was determined using intensity thresholding (triangle algorithm with addition of the mean image intensity), and then used for automatic assignment of complexes to cytoplasm or nucleus.

After Gaussian filtering, fluorescent blinking events were identified as I − M > 6S, where I is the event intensity, M the mean image intensity and S the standard deviation of the image intensity.

The mean image intensity (I mean) was also defined by a fixed threshold as a percentage of maximum SC SPECT image intensity within the ALV or the spleen.

This is achieved by using a Gaussian kernel centred on the mean image intensity of the original image given by L i ; m o, σ = e x p - i - m o 2 2 σ 2 (4).

Each element is a ratio between the mean image intensities within the target ROI and the mirror ROI calculated with each diffusion gradient.

The contrast of the mean EPI image was inverted to match the contrast of the T1-weighted reference anatomy: a tissue mask was formed by thresholding the mean EPI image intensity (above and below), then subtracting the intensity of each voxel from the sum of the image maximum and the image minimum.

The mean change in image intensity across images was calculated by taking the average of the absolute differences in gray value at each pixel for successive pairs of images within a block.

σ and μ are the standard deviation and mean of the image intensity, respectively.

Unlike the C-V model, we bring in a window function to calculate the local means of image intensities inside and outside the contour, respectively, and apply them to improve the C-V model.