Fast Visual Object Tracking Using Modified kalman and Particle Filtering Algorithms in the Presence of Occlusions
G.Mallikarjuna Rao, Sivaprasad Nandyala, Ch. Satyanarayana · International Journal of Image Graphics and Signal Processing · 2014
In the present day real time applications of visual object tracking in surveillance, it has become extremely complex, time consuming and tricky to do the tracking when there are occlusions are present for small duration or for longer time and also when it is done in outdoor environments.In these conditions, the target to be tracked can be lost for few seconds and that should be tracked as soon as possible.As from the literature it is observed that particle filter can be able to track the target robustly in different kinds of background conditions, and it's robust to partial occlusion.However, this tracking cannot recover from large proportion of occlusion and complete occlusion, to avoid this condition, we proposed two new algorithms (modified kalman and modified particle filter) for fast tracking of objects in the presence of occlusions.We considered the complete occlusion of tracking object and the main objective is how fast the system is able to track the object after the occlusion is crossed.From the experimental results, it is observed that the proposed algorithms have shown good improvement in results compared to the traditional methods.