Image distortion correction method and apparatus

Details Image distortion correction method and apparatus Image distortion correction method and apparatus

1985-11-04

1987-06-16

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358 64, 315370, 315382, H04N 568

Patent

active

046739866

ABSTRACT:
A method for compensating for video image distortion on a cathode ray tube (CRT) is accomplished by determining the distortion occurring along one axis of deflection of the CRT electron beam. The distortion is determined by predicting the position of the electron beam during a particular scan along the axis of deflection. The rate at which video image information is displayed (pixel rate) via the electron beam is varied according to the predicted position of the electron beam during the scan along the axis.

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