Patent ID: 8542873

Claim:
A motion object detection method using an adaptive background model to detect a foreground object in a present image in accordance with at least one background image, wherein the present image and the background images are corresponding to the same pixel coordinate array comprising a plurality of pixel coordinates points, and the motion object detection method comprises: performing a background model establishing step comprising: determining a plurality of first brightness weight values in accordance with the brightness of a plurality of background pixels of the background image, wherein each of the first brightness weight values corresponds to a background pixel, and each of the first brightness weight values is determined by the brightness of the corresponding background pixel, and the first brightness weight values increases with the increase of the brightness of the corresponding background pixel; and calculating a plurality of background brightness reference values in accordance with the brightness of the background pixels and the first brightness weight values, wherein each of the background brightness reference values corresponds to a pixel coordinates point, and each of the brightness of the background pixels is multiplied by the brightness weight value corresponding thereto to obtain the background brightness reference values; and detecting at least one foreground object by using the background brightness reference values.