IMAGE PROCESSING APPARATUS, METHOD OF TRACKING A TARGET OBJECT, AND STORAGE MEDIUM

An image processing apparatus that tracks a target object by estimating a position of the target object on each of a plurality of images. A first estimating unit estimates the position of the target object in at least one of images. A second estimating unit estimates the position of the target object in at least one of images, wherein estimating accuracy of the position of the target object in the second estimating process is lower than the estimating accuracy in the first estimation process. A correcting unit corrects the position of the target object estimated by the second estimation process on a second image, based on the position of the target object estimated by the first estimation process on a first image. The second image is an image captured at a different time from the first image.