Title :
HDTV coding using hybrid MRVQ/DCT
Author :
Ngan, King Ngi ; Sin, Kok K. ; Koh, Hee C.
Author_Institution :
Dept. of Electr. & Comput. Syst. Eng., Monash Univ., Clayton, Vic., Australia
fDate :
8/1/1993 12:00:00 AM
Abstract :
The authors develop a technique to compress HDTV images to below 135 Mb/s at transparent quality, i.e., visually indistinguishable from the original. This is at least equal to the contribution quality. The proposed scheme consists of a lossy and a lossless coder. The lossy coder combines the advantages of two image coding methods, namely, mean/residue vector quantization (MRVQ) and discrete cosine transform (DCT) coding, and the lossless coder is an arithmetic coder (AC), which has been shown to outperform the commonly used Huffman code . The authors describe the various components of the hybrid HDTV image coding scheme and how they are implemented
Keywords :
discrete cosine transforms; high definition television; image coding; vector quantisation; video signals; 80 Mbit/s; HDTV coding; arithmetic coder; discrete cosine transform; hybrid MRVQ/DCT; hybrid coding scheme; image coding; image compression; lossless coder; lossy coder; mean/residue vector quantization; transparent quality; B-ISDN; Digital video broadcasting; Discrete cosine transforms; HDTV; Image coding; Image reconstruction; Image sampling; Signal sampling; Silicon compounds; TV;
Journal_Title :
Circuits and Systems for Video Technology, IEEE Transactions on
