Data in healthcare, however, are often censored, meaning that the event of interest has not occurred during the study period, so the final outcome is unknown. Censored data are particularly common in AD studies as it is a slowly developing disease. The presence of censored data precludes the...
The three window functions are defined by(13)WEXP(t)=A(e−αt−e−βt);(14)WGAUSS(t)=1σ2πe−t2/2σ2;(15)WRECT(t)=1,t0≤t≤t10,otherwise;where A, α and β have the same meaning as in Eq. (11), yet with different values. σ represents the standard deviation of...
Society is increasingly relying on computers to extract meaning and information from digital images. Partial differential equations are a popular and well-studied tool for computer vision applications, but the anti-geometric heat flow has been overlooked. The goal of this thesis is to demonstrate ...
2A-2C by the arrow head lines, such as represented in component 220a (e.g., from F0 to F4, etc.). As illustrated by the arrow head lines, frames F0(t) through F3(t) are matched to F4(t), meaning that blocks (e.g., blocks of pixels or image blocks, such as 8×8, 8×4...
in-continuity nerve roots as avulsed1, meaning that many surgeons still undertake exploratory surgery. This shortfall in conventional imaging might be improved by diffusion tensor imaging (DTI), which is sensitive to changes in the microstructure of peripheral nerves (e.g. myelination, axon ...
Performing correlation analysis for all possible pairs of brain regions results in a functional connectivity matrix for each of the individual subjects, with the obtained case and control matrices often “thresholded”, meaning the selection of those connections that reach a certain absolute or relative...
thresholding: A process of creating a black-and-white image out of a grayscale image consisting of setting exactly those pixels to white whose value is above a given threshold, setting the other pixels to black.
All curves are clearly distinct, meaning a significant effect of the spray pressure on volumetric diameters. Figure 4. Cumulative volume curves as affected by spraying pressure. 3.2. Relationship between Threshold Values and Gray Levels Figure 5 shows the relationship between the average gray level ...
All curves are clearly distinct, meaning a significant effect of the spray pressure on volumetric diameters. Figure 4. Cumulative volume curves as affected by spraying pressure. 3.2. Relationship between Threshold Values and Gray Levels Figure 5 shows the relationship between the average gray level ...
If the number of searches associated with the food source reaches the limit, the solution is assumed to be exhausted, meaning the food source is not the optimal solution and needs to be replaced. The bee discards the food source and becomes a scout bee, which selects a random source to ...