SMPTE D11
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SMPTE D11, also known as HDCAM, is a standard for the compression of high-definition digital video. D11 source picture rates can be 24, 25 or 30 frames per second progressive scan, or 50 or 60 fields per second interlaced; compression yields output bit rates ranging from 112 to 140 Mbit/s. Each D11 source frame is composed of a luminance channel at 1920 x 1080 pixels and a chrominance channel at 960 x 1080 pixels. During compression, each frame's luminance channel is subsampled to 1440 x 1080 pixels, while the chrominance channel is subsampled to 480 x 1080 pixels. The decoder restores the output sample grid to 1920 x 1080 pixels by interpolation.
[edit] External links
- Guide To DTV Standards: Video Recording
- Overview of Digital Video Standards -- PowerPoint presentation
