Title :
A cascading MRVQ-DCT scheme for the compression of sequence images
Author :
Huang, Shih-Yu ; Wang, Jia-Shung
Author_Institution :
Dept. of Comput. Sci., Nat. Tsing Hua Univ., Hsinchu, Taiwan
fDate :
8/1/1997 12:00:00 AM
Abstract :
In this correspondence, a mean residual vector quantizer (MRVQ) is superimposed on the motion estimator for improving the intraframe coding quality of MPEG. The proposed scheme performs an MRVQ before executing the discrete cosine transformation (DCT) for the purpose of curing the DCT intrinsic trouble of blocking effect at low bit rate
Keywords :
code standards; discrete cosine transforms; image coding; image reconstruction; image sequences; motion estimation; telecommunication standards; transform coding; vector quantisation; MPEG; blocking effect; cascading MRVQ-DCT scheme; codebook; discrete cosine transformation; image compression; intraframe coding quality; low bit rate; mean residual vector quantizer; motion estimator; sequence images; Bit rate; Curing; Discrete cosine transforms; Hardware; Image coding; Motion estimation; Motion pictures; Transform coding; Vector quantization; Video sequences;
Journal_Title :
Image Processing, IEEE Transactions on
