4 Bayesian Multi-scale Diierential Optical Flow 14.1 Introduction
نویسنده
چکیده
Images are formed as projections of the three-dimensional world onto a two-dimensional light-sensing surface. The brightness of the image at each point indicates how much light was absorbed by the surface at that spatial position at a particular time (or over some interval of time). When an object in the world moves relative to the sensor surface, the two-dimensional projection of that object moves within the image. The movement of the projection of each point in the world is referred to as the image velocity or the motion eld.
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