Title :
A low bit rate hybrid wavelet-DCT video codec
Author :
Dianat, Reza ; Ghanbari, Mohammed ; Marvasti, Farokh
Author_Institution :
Iran Telecommun. Res. Center, DSP & Multimedia Lab., Tehran, Iran
fDate :
7/1/2005 12:00:00 AM
Abstract :
A hybrid video codec, where the intraframe pictures are wavelet-based coded and the interframe pictures are coded with a standard H.263 codec is proposed. We show that intraframe-wavelet coded pictures not only improve the quality of I-pictures but also result in lower distorted prediction pictures that outperforms a pure H.263 video codec.
Keywords :
discrete cosine transforms; video codecs; video coding; wavelet transforms; H.263 codec; discrete cosine transform; distorted prediction picture; hierarchical tree set partitioning; interframe picture; intraframe picture; low bit rate hybrid wavelet-DCT video codec; Art; Bit rate; Code standards; Discrete cosine transforms; Image coding; Modeling; Partitioning algorithms; Video codecs; Video coding; Wavelet transforms; Discrete cosine transform (DCT); H.263 codec; set partitioning in hierarchical trees (SPIHT); wavelet;
Journal_Title :
Circuits and Systems for Video Technology, IEEE Transactions on
DOI :
10.1109/TCSVT.2005.848342
