IVF3: exploiting intensity variation function for high-performance pedestrian tracking in forward-looking infrared imagery

Fabrizio Lamberti; Andrea Sanna; Gianluca Paravati; Luca Belluccini

doi:10.1117/1.OE.53.2.023105

27 February 2014 IVF3: exploiting intensity variation function for high-performance pedestrian tracking in forward-looking infrared imagery

Fabrizio Lamberti, Andrea Sanna, Gianluca Paravati, Luca Belluccini

Author Affiliations +

Optical Engineering, Vol. 53, Issue 2, 023105 (February 2014). https://doi.org/10.1117/1.OE.53.2.023105

Abstract

Tracking pedestrian targets in forward-looking infrared video sequences is a crucial component of a growing number of applications. At the same time, it is particularly challenging, since image resolution and signal-to-noise ratio are generally very low, while the nonrigidity of the human body produces highly variable target shapes. Moreover, motion can be quite chaotic with frequent target-to-target and target-to-scene occlusions. Hence, the trend is to design ever more sophisticated techniques, able to ensure rather accurate tracking results at the cost of a generally higher complexity. However, many of such techniques might not be suitable for real-time tracking in limited-resource environments. This work presents a technique that extends an extremely computationally efficient tracking method based on target intensity variation and template matching originally designed for targets with a marked and stable hot spot by adapting it to deal with much more complex thermal signatures and by removing the native dependency on configuration choices. Experimental tests demonstrated that, by working on multiple hot spots, the designed technique is able to achieve the robustness of other common approaches by limiting drifts and preserving the low-computational footprint of the reference method.

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Fabrizio Lamberti, Andrea Sanna, Gianluca Paravati, and Luca Belluccini "IVF3: exploiting intensity variation function for high-performance pedestrian tracking in forward-looking infrared imagery," Optical Engineering 53(2), 023105 (27 February 2014). https://doi.org/10.1117/1.OE.53.2.023105

Published: 27 February 2014

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