| 摘要 |
An image processing method and apparatus, comprising: capturing image data from a sequence of images of a scene from different but repeatable viewpoints (14a-f), e.g. different positions on a repeatable surveillance path; associating captured images with a respective viewpoint identification;tracking a region of interest (10) in the sequence of images;performing an eigenspace projection for the respective images to calculate respective points (22a-f) in the eigenspace projection;comparing the calculated points (22a-f) to points previously obtained (20a-f) for a reference image for substantially the same viewpoints (14a-f);wherein a change between a calculated point (22f) and a corresponding previously obtained point (20f) indicates a change in the image content of the region of interest (10) between the corresponding captured image and the corresponding reference image for the substantially same viewpoint (14f). |
