16 April 2008 Track history development by combining watermarking and target tracking
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Abstract
In this work we propose the use of digital watermarks to establish track history of multiple tracked objects. Target tracks extracted from a frame sequence can be represented and analyzed using spatio-temporal graphs. However, this approach requires extensive computation and data storage. It is possible to achieve the same result by digitally watermarking each tracked target. This self-contained video can then be searched to extract track history. Track history is obtained by computing a quantity called target adjacency matrix. Interpretation of the elements of this matrix, their location, magnitude and movement will establish desired track history. Given two randomly selected frames we can establish changes of spatial relationship among targets in the two frames as well as entry or exit of new targets in each frame.
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Bijan G. Mobasseri, Bijan G. Mobasseri, Preethi Krishnamurthy, Preethi Krishnamurthy, } "Track history development by combining watermarking and target tracking", Proc. SPIE 6962, Unmanned Systems Technology X, 696209 (16 April 2008); doi: 10.1117/12.777894; https://doi.org/10.1117/12.777894
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