Visual Impact of Video Parameters in Video Systems: Part 2—The Effect of Chrominance-to-Luminance Delay
The ultimate measure of video system quality is largely determined by visually looking at the resulting picture. It is, nonetheless, important that engineers have objective measurements for judging video quality. The delay mismatch between chrominance and luminance, the color and brightness of the optical signal, is an important video parameter which is both difficult to gauge and requires measurement by an objective specification. This application note, the second in a series of application notes discussing the electrical parameters that affect video systems, will help the designer understand the relationship between the chroma-to-luma delay mismatch, that is the mismatch between the color and brightness of the electrical signal. Ways to measure those mismatch values and their impact on video picture quality will be discussed.
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