A Multistage Interactive Track Algorithm for W-FOV System

We present a real time multistage interactive track algorithm for wide field of view staring infrared system. Algorithm contains three main stages: a simple track according correlation, a fine track base on content and a screener served for both. If track mission is easy, the first simple track runs. If it couldn't track effectively, the second fine track will take over. Screener judges which track stage run, saves all possible targets and information for more track. Algorithm adjusts operational flexibility according different track situation. Finally, algorithm was demonstrated via simulation of real infrared image sequences. Results show that the performance of the fine track is better than the simple track. This interactive algorithm can work effectively and be robust for more widely using.