英语词汇“kell factor”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	kell factor
释义	Kell factor Kell factor A subjective number of lines of resolution that can be visually perceived in a video display system, expressed as a percentage of the total number of lines of resolution. In 1933, RCA engineers Kell, Bedford and Trainer determined that the effective resolution of their electronic video system was 64% (0.64) of the total scan lines. As the electronics became more capable and generated more scan lines, Kell and Bedford increased the factor to 85% in 1940.
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Kell factor