Thread: Test pattern?
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Old 12-28-2011, 08:03 PM
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Quote:
Originally Posted by jr_tech View Post
So one would measure Horizontal resolution in terms of "lines per picture (vertical) height"? seems strange!
I would think that normalizing the measurement to CRT diameter/diagonal or width would produce data that would be more consistent... "portholes" got a big break with the "lines per picture height" definition.

jr
Doesn't matter what you normalize to, just so you normalize to something. Probably because the scanning lines are arranged vertically one below another, the vertical dimension was chosen. "330 lines per picture height" of horizontal resolution gives 440 total "lines" of resolution per picture width since the width is 4/3 times the height.
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