High quality HDTV can be broadcasted using the 6 MHz channel-slot of one analog NTSC channel, but with over 9 times its resolution quality. The NTSC image is made of 480ix450 viewable picture elements per video frame composed of two interlaced fields and delivered at a rate of 60 fields (30 frames) per second.
Most HD broadcast compressed with MPEG-2 is transmitted as interlaced 1080i with 2 million+ pixels per video frame (1080x1920 pixels), each frame is composed of two interlaced 540-line fields delivered at the rate of 60 fields per second (30 frames).
Some HD broadcasts use...
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Most HD broadcast compressed with MPEG-2 is transmitted as interlaced 1080i with 2 million+ pixels per video frame (1080x1920 pixels), each frame is composed of two interlaced 540-line fields delivered at the rate of 60 fields per second (30 frames).
Some HD broadcasts use...
Read Article