The coding of image sequences by wavelets, wavelet packets and other subband coding schemes

Author

Sablatash, M. ; Cooklev, T. ; Kida, T.

Author_Institution

Communication Res. Centre, Ottawa, Ont., Canada

Volume

40

Issue

4

fYear

1994

fDate

12/1/1994 12:00:00 AM

Firstpage

201

Lastpage

205

Abstract

For the terrestrial broadcasting of high-definition television (HDTV) in North America the discrete cosine transform (DCT), Huffman (lossless) coding and motion detection, estimation and compensation have been used to compress raw HDTV rates of 1.0-1.2 Gbps. Compressed and compacted video bit rates range from 12.59 Mbps to 13.60 Mbps for 16-QAM transmission and from 17.47 to 18.88 for 32-QAM transmission. MPEG source coding schemes, are used in a proposed HDTV system and in the Grand Alliance proposal. They share features in common with other source coding schemes which have been employed. It seems likely that compression and compaction to an HDTV video bit rate below 10 Mbps should be attainable. The methods discussed in this paper provide hope for realizing this goal

Keywords

Huffman codes; discrete cosine transforms; high definition television; image coding; image sequences; motion compensation; motion estimation; quadrature amplitude modulation; television broadcasting; wavelet transforms; 1.0 to 1.2 Gbit/s; 12.59 to 13.60 Gbit/s; 16-QAM transmission; 17.47 to 18.88 Gbit/s; 32-QAM transmission; DCT; HDTV; Huffman coding; MPEG source coding; North America; bit rate reduction; discrete cosine transform; high-definition television; image coding; image sequences; lossless coding; motion compensation; motion detection; motion estimation; subband coding; terrestrial broadcasting; video bit rates; video compression; wavelet packets; wavelets; Bit rate; Discrete cosine transforms; HDTV; Image coding; Image sequences; Multimedia communication; Source coding; Video compression; Video sharing; Wavelet packets;

fLanguage

English

Journal_Title

Broadcasting, IEEE Transactions on

Publisher

ieee

ISSN

0018-9316

Type

jour

DOI

10.1109/11.362939

Filename

362939