A Fast Computation of 2-D Cubic-Spline Interpolation
L.-J. Wang, Wen‐Shyong Hsieh, Trieu‐Kien Truong · IEEE Signal Processing Letters · 2004
Based on a cross-zonal filter in the two-dimensional (2-D) cubic-spline interpolation (CSI) and a symmetric extension method, an efficient algorithm is proposed for image coding. Experimental results show that the proposed method is superior in performance and yields a better quality of reconstructed image than other interpolation methods.