Zooming while Tracking Using Affine Transfer
نویسندگان
چکیده
Zoom interacts strongly with both vision and control processes in an active visual system, causing problems for many commonly used tracking methods. This paper demonstrates the use of affine transfer to track while zooming, using clusters of corner features. Affine transfer not only is fundamentally invariant to zoom but also provides a natural mechanism to allow features to appear and disappear while tracking, events which will occur as detail sharpens and dissolves during zooming. The paper demonstrates offline 3D affine transfer during zoom for objects undergoing substantial rotation, and describes real-time experiments using 2D affine transfer while zooming and tracking using an active camera platform.
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