Title :
Study of decimation/interpolation and its application to DCT image coding
Author :
Ye-Kui Wang ; Tu, Guo-Fang
Author_Institution :
Dept. of EE, Beijing Univ. of Sci. & Technol., China
Abstract :
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
Keywords :
discrete cosine transforms; image coding; interpolation; transform coding; DCT image coding; adaptive D/I; bit rate; decimation; image quality; interpolation; Bit rate; Computational complexity; Degradation; Discrete cosine transforms; Humans; Image coding; Image quality; Interpolation; Testing; Visual system;
Conference_Titel :
Communication Technology Proceedings, 2000. WCC - ICCT 2000. International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-6394-9
DOI :
10.1109/ICCT.2000.889355
