B-spline interpolation in medical image processing (vol 18, pg 1049, 1999)

This paper analyzes B-spline interpolation techniques of degree 2, 4, and 5 with respect to ah criteria that have been applied to evaluate various int erpolation schemes in a recently published survey on image interpolation in medical imaging (Lehmann ct at, 1999), It is shown that high-degree B-spli ne interpolation has superior Fourier properties, smallest interpolation er ror, and reasonable computing times. Therefore, high-degree B-splines are p referable interpolators for numerous applications in medical image processi ng, particularly if high precision is required. If no aliasing occurs, this result neither depends on the geometric transform applied for the tests no r the actual content of images.