New Optimal Tracking Algorithms for Reference with Random Textures

The detection and location of a target in a scene is a classical problem, pervasive to many image processing applications. When the target appears on a low contrast background and the image is corrupted with additive gaussian noise, the optimal method is the matched filter [1]. However, the matched filter, as well as the improved linear filtering techniques [2] have been shown to perform poorly on many real-world images [3], because such images often do not belong to the class for which linear filtering is optimal.