In computer vision, the motion field is an ideal representation of motion in three-dimensional space (3D) as it is projected onto a camera image. Given a simplified camera model, each point ( y 1 , y 2 ) {\displaystyle (y_{1},y_{2})} in the image is the projection of some point in the 3D scene but the position of the projection of a fixed point in space can vary with time.
In computer vision, the motion field is an ideal representation of motion in three-dimensional space (3D) as it is projected onto a camera image. Given a simplified camera model, each point ( y 1 , y 2 ) {\displaystyle (y_{1},y_{2})} in the image is the projection of some point in the 3D scene but the position of the projection of a fixed point in space can vary with time.
Source: Wikipedia "Motion field" · CC BY-SA 4.0
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