Patent ID: 6031568
Filing Date: 2000-02-29
Classification: G06T

Abstract:
A moving-target tracking apparatus wherein an original picture image, which consists of a plurality of frames sequentially continued, photographed with a scene including at least one moving object, is inputted and a moving-target selected from among moving objects projected on the original picture image is tracked, said moving-target tracking apparatus comprising:a first correlation value distribution operational unit for determining a distribution of a first correlation value between a color template to be compared with the moving-target projected on a color separation image constituting the original picture image, and the color separation image;a differential processing unit for spatially differentiating the original picture image to determine a differential image;a second correlation value distribution operational unit for determining a distribution of a second correlation value between a differential template to be compared with the moving-target projected on the differential image, and the differential image;a motion prediction value distribution operational unit for determining a distribution of a motion prediction value representative of a probability of existence of the moving-target in accordance with a past motion of the moving-target;an evaluation value distribution operational unit for determining an evaluation value through merging the first correlation value, the second correlation value and the motion prediction value to determine a distribution of the evaluation value representative of an existing position of the moving-target; anda position detecting unit for detecting the existing position of the moving-target in accordance with the distribution of the evaluation value determined in said evaluation value distribution operational unit.