Shuttering Functions in TV Cameras and Displays from the Viewpoint of Spatio-Temporal Sampling

Abstract

Pictures taken by a camera with a shutter look better and sharper than those without one, because there is less blurring of moving objects. This is explained by apparent motion, a mystery of the human visual system. Similarly, pictures on liquid crystal displays are clearer with blinking lighting. This is explained by eye-tracking for moving objects. In this paper, spatio-temporal sampling is used to analyze and clarify the effects of the shutter and blinking lighting, instead of the apparent motion and the eye-tracking.