Study of decimation/interpolation and its application to DCT image coding
Ye-Kui Wang, Guofang Tu · 2002
Comparison of several decimation/interpolation (D/I) algorithms, and a novel image coding scheme, which is based on DCT with adaptive D/I (ADI), are presented. Through the comparison, the background reason and the superiority of ADI are clarified. It is also shown that the proposed interpolative DCT scheme outperforms the original DCT scheme in bit rate with slightly degraded image quality.