Multidimensional Filtering Approach to High-Resolution Image Interpolation
Tian–Bo Deng · ITC-CSCC :International Technical Conference on Circuits Systems, Computers and Communications · 2009
We have derived an explicit formula for computing the coefficients of one-dimensional (1-D) Lagrange-type variable fractional-delay (VFD) digital filters for both even- and odd-order cases. This paper extends the 1-D VFD filter design to the two-dimensional (2-D) case and shows that the image interpolation using VFD filtering can achieve higher resolution image than the conventional interpolation techniques.