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

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3 Author(s)
Sablatash, M. ; Communication Res. Centre, Ottawa, Ont., Canada ; Cooklev, T. ; Kida, T.

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

Published in:

Broadcasting, IEEE Transactions on  (Volume:40 ,  Issue: 4 )

Date of Publication:

Dec 1994

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