A rolling shutter is a type of camera shutter design that exposes different parts of the image sensor at different times. Instead of capturing the entire image at once, a rolling shutter captures the image by scanning across the sensor either vertically or horizontally. This can lead to distortions in the image, particularly when capturing fast-moving objects. Rolling shutters are commonly used in consumer cameras and smartphones, but global shutters are preferred for industrial machine vision applications where accuracy and consistency are critical.
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