The (non) standard TV signal
Converting a three-dimensional moving image into a video signal requires a method of accurately translating light into electricity and then back into an image viewed on a TV monitor. This translation involves adopting a standard signal with a method of synchronization of line and frame repetition at the point of production, transmission and reception/video replay. There are many variables in the way this translation is accomplished:
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The number of lines in the picture and the number of pictures per second in monochrome television broadcasting were historically chosen to be compatible with the frequency of the AC power supply. There were 50Hz countries and 60Hz countries and so there arose over time two major scanning ... |
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