Due to the lack of difference in proton density and MRI relaxation times between β-cells and surrounding pancreatic tissues, β-cells cannot be differentiated based on these intrinsic contrasts in MRI.
Although dedicated MR angiography methods exist, which highlight arterial blood, and hence, vessels, segmentation based on the contrast of these sequences alone can be problematic due to artifacts (e.g., due to inhomogeneous coil profiles leading to large-scale intensity variations).
Based on these estimates, the contrasts CTC vs. T, CTC vs. P, CTC vs. G, T vs. P, T vs. G, and P vs. G were estimated.
Based on these definitions, the contrast based on area representation [2 4] was proposed for size invariant visual secret sharing schemes.
A measure based on the contrast histogram shows much greater consistency than statistical measures [40].
Vignati et al. [10] discover breast lesions using a normalization technique based on the contrast-uptake of mammary vessels.
Individual analysis was based on the contrast patient < controls (hypometabolism), using a 2-sample t test and age as covariate.
Fang et al. [21] proposed a visual attention model for stereoscopic images based on the contrast between low-level features.
wJNB(b) is the edge width of the JNB based on the contrast of the block b.
A lot of my work is based on the contrasting styles of ornament.
