| 摘要 |
In a method of compensating an image signal (10) having a field frequency of substantially N times a mains frequency, in which N>=2, for AC light source induced fluctuations, the image signal (10) and an average signal representing an average image signal content over a given time period are arithmetically processed (14,16-20,8) to obtain a corrected signal (9), in which at least N-1 differences between at least N-1 respective phases of the corrected signal (9) on the one hand, and a selected phase (ph2) other than the N-1 phases of the corrected signal (9), or an average over N fields of the image signal (10), on the other hand, are integrated (14,16), and in which at least N-1 integrated differences are processed (20) to obtain a correction factor for the image signal (10).
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