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Fiber Optic Video Transmission by David Goff

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Chapter 11

The Nature of Video Signals

 

Video signals are exquisitely complex waveforms that encode several types of information about a scene. Typically a scene is scanned at the transmit end and converted into a number of lines or pixels per scene. The lines from the decomposed scene can be thought of as a series of pixels. Generally a series of lines comprises a TV signal, while computer displays use a pixel-based configuration.

General Characteristics of all Video Formats

A usable video waveform conveys the following information:

Brightness (luminance) of each pixel

The color (hue) of each pixel

Color saturation information

Precise location of the pixel on the display

Of course, to keep the image's appearance smooth and continuous, ...

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