Finally, we tested whether ω was on average higher in groups of related key taxa than in the background tree by implementing Clade Model C, which includes three site classes.
Well established statistical methods were used to determine whether GGT genes of specific clades are under positive selection with respect to the background tree.
And make no mistake, Roobarb was anarchic: the theme tune, with its punky electric guitar, made mothers flinch; background trees had an oddly testicular look; and the moon wore curlers.
In the background, leafless trees in pseudo-naif style enhance the sense of desolation.
Paint the side of mountain in the background with trees and rocks.
What happens by accident on it is something you can use deliberately later on to create blue skies with soft-edged pink clouds in them, background trees with soft edges that blur into mist, sharp wet on dry details in the foreground.
In any case, his attention seems drawn equally, if not more, by the background, a tree-garnished northern landscape of mountains and fortress-towns, realistically detailed down to each leaf and stone.
For instance, in the CAM sequence, the background included tree branches that were constantly swayed by a strong wind.
For example, one of the problems in video background subtraction methods is the oscillating background: it occurs when elements forming in principle the background, like tree branches in Figure 2, are oscillating.
If some parts of the background (a tree branch, for example) moves to occupy a new pixel, but it is not part of the model for that pixel, it will be detected as a foreground object.
