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Field time linear distortions
Distortions involving signals in the 64 μsec to 16 msec range. Field time distortions cause field-rate tilt in video signals as shown in the figure below. Error is expressed in IRE or as a percentage of a reference amplitude which is generally the amplitude at the centre of the line bar. Distortion can also be expressed as the K Factor of K60Hz. See K60Hz.
These distortions will cause top to bottom brightness inaccuracies in large objects in the picture. These distortions can be measured with either a window signal or a field square wave. See Linear Distortions.
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- Industry/Domain: Entertainment
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