| 摘要 |
A surveillance camera system includes a camera that acquires images and that has an adjustable field of view. A processing device is operably coupled to the camera. The processing device allows a user to define a virtual mask 204 within the acquired images. The processing device tracks a moving object of interest 202 in the acquired images with a reduced level of regard for areas of the acquired images that are within the virtual mask. In a further embodiment a motion mask is created based upon the acquired images, a virtual mask is defined over a source of background motion within the images, e.g. flags or trees, the motion mask is modified using the virtual mask and a moving object of interest is tracked based upon the modified motion mask. The virtual mask may define an area completely encircling an unmasked area. Pixels within the virtual mask may be completely disregarded in the tracking of the moving object. |
