confidence region
An absolute (or point) confidence region for the adjusted coordinates of a point is a region in which there is a certain statistical confidence (usually 95%) that the actual position of the point falls within that region.
A relative confidence region for the adjusted coordinate differences of two points is a region in which there is a certain statistical confidence (usually 95%) that the actual position difference of the two points falls within that region.
A relative confidence region for the adjusted coordinate differences of two points is a region in which there is a certain statistical confidence (usually 95%) that the actual position difference of the two points falls within that region.