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Please read the White Paper Copyright
Notice
Download
 WHP119 4.9
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BBC
R&D White Paper WHP119
Mezzanine Compression
for HDTV
R.T. Russell
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Keywords
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Abstract
The 1080x50 and 1080x60 standards are ideal for use
as studio acquisition formats, however a bit-rate of 3 Gb/s
is required to transport them in an uncompressed form.
A compression method is described which makes it possible
to encode a 1080x50 or 1080x60 signal into a format that
is compatible with the 1080i standard and suitable for
transport via HD-SDI at 1.5 Gb/s. A novel feature
is that the compressed signal is recognisable when displayed
as
1080i, for ease of monitoring and identification. When
that feature is not required a compression ratio of 2.5:1
is achievable.
This document was originally
published in the Proceedings of the International Broadcasting
Convention,
September
2005.
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