| 摘要 |
PURPOSE:To correct image distortion in plural image pickup devices by inputting an information signal necessary for correcting the image distortion together with a video signal from a color TV image pickup device directly or through an image recording/reproducing device and correcting the image distortion of a corresponding video signal. CONSTITUTION:An image signal processor is constituted of an image pickup device 2 and an image distortion correcting device 5. A signal processor 12 in the device 5 changes various values of an optical system or the like while photographing an object 1 to be a reference in the device 2, detects an image distortion variable in each value by means of a CPU 26, computes each correction value corresponding to each detected value and stores the computed value in a ROM 24 correspondingly to the various values of respective optical systems or the like. At the time of real time correction, the CPU 26 selectively reads out a corresponding correction factor from the ROM 24, successively reads out a video signal 22 from a frame memory 9, executes correcting operation, successively stores the operated result in a RAM 25, and writes the result as a corrected video signal 23 in a frame memory 10.
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