| 摘要 |
A method, system and program product in accordance with the preferred embodiments use motion vector data to track an object being monitored by a video camera. Motion vector data are used to calculate pan, tilt and/or zoom adjustment data. For example, motion vector data may be provided to a motion tracking processor at a macroblock level by an MPEG compression processor. Alternatively, motion vector data may be provided to a motion tracking processor at a pixel level by a pre-processor. The pan, tilt and/or zoom adjustment data is sent to the camera. For example, the pan, tilt and/or zoom adjustment data may be sent to a PTZ adjustment mechanism of the camera. Because the preferred embodiments use a closed loop system, tracking the object is made easier and does not require a skilled operator.
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