| 摘要 |
A method and an apparatus for tracking a target wherein a shape of a target is extracted from a former image which includes an initial image of the target for tracking, and then an area including the shape of the target is extracted as a correlation area. Based on the correlation area, a checking area is extracted from a current image to check for a correlation. By utilizing a correlation function, the correlation between the former image and the current image is calculated. A location change of the target is calculated to estimate a movement of the target, on the basis of the calculated correlation. Compensating the estimated movement during operation of a camera, the camera is controlled so that a gazing point of the camera can track the target. The correlation area can be acquired either by extracting a boundary pixel of the target and scanning to extract a shape of the target which serves as the correlation area, or by quad-tree dividing and merging a window including the target on the basis of a luminosity of each pixel.
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