MPEG7 motion descriptor extraction for panning camera using sprite generation

Asif, Muhammad and Soraghan, J.J.; (2008) MPEG7 motion descriptor extraction for panning camera using sprite generation. In: IEEE Fifth International Conference on Advanced Video and Signal Based Surveillance, 2008. IEEE, pp. 60-66. ISBN 978-0-7695-3341-4 (http://dx.doi.org/10.1109/AVSS.2008.27)

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Abstract

Sprite generation is extensively used for the video compression. Real time efficient video analytics (VA) for surveillance system need to make decision with in camera processing unit or at camera edge processing unit. The Video Analytics is required to work on good resolution footage to register tiny but important information that may otherwise be lost during subsequent compression process, especially in temporally exploited streams. This paper presents a novel approach to generate a full view panoramic mosaic for a surveillance sequence to help detect moving objects and extract MPEG-7 motion descriptors. Unlike the current panoramic transformation methods, in which pure horizontal panning motion is requiredis required to construct the mosaic, our method can deal with uncontrolled panning motion with slight camera tilt motion. This method provides a generic solution for real world surveillance camera issues such as undesired tilt motion because of the nonlinearity of camera moving mechanism, strong wind etc. The sprite generated helps to detect moving objects, constructing motion trajectories and also provides a clean background reference even for a panning camera. The algorithm has been evaluated with several test sequences.

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