Elements of Computer Vision

Rather than analyzing a single image, the motion approach to image interpretation is based on the computer pulling information from a series of images. While at the most basic visual level motion analysis is much more processor intensive (a stream of images has to be examined as opposed to a single one), motion can make recovery of information from an image easier by identifying which parts of the image need to be examined closer.

There are two classes of things whose motion has to be considered: the camera and the objects in the scene. One or both of these can be moving at any given time. We will first examine only object motion, leaving the incorporation of camera motion for later, more sophisticated techniques.

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