Abstract
The 1080p50 and 1080p60 standards are ideal for use as studio acquisition formats; however, a bit rate of 3 Gbits/sec is required to transport them in an uncompressed form. A compression method is described that makes it possible to encode a 1080p50 or 1080p60 signal into a format that is compatible with the 1080i standard and suitable for transport via HD-SDI at 1.5 Gbits/sec. A novel feature is that the compressed signal is recognizable 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.
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