Title :
DCT-based interframe coding for video codec
Author :
Jong, H.-M. ; Chen, Li-Guang ; Chiueh, Tzi-Dar
Author_Institution :
Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
A preprocessing method for the discrete cosine transform (DCT) in interframe coding schemes is proposed based on an observation that the statistical characteristic of block difference is quite different from that of ordinary pictures. This method makes block difference more suitable for DCTs, and significantly reduces the reconstruction errors of typical image sequences.
Keywords :
codecs; decoding; encoding; picture processing; transforms; video signals; DCT-based interframe coding; block difference; discrete cosine transform; image sequences; preprocessing method; reconstruction errors; statistical characteristic; video codec;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19920258
