15 September 2008 Acquisition and registration of aerial video imagery of urban traffic
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The amount of information available about urban traffic from aerial video imagery is extremely high. Here we discuss the collection of such video imagery from a helicopter platform with a low-cost sensor, and the post-processing used to correct radial distortion in the data and register it. The radial distortion correction is accomplished using a Harris model. The registration is implemented in a two-step process, using a globally applied polyprojective correction model followed by a fine scale local displacement field adjustment. The resulting cleaned-up data is sufficiently well-registered to allow subsequent straight-forward vehicle tracking.
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Rohan C. Loveland, Rohan C. Loveland, Edward Rosten, Edward Rosten, } "Acquisition and registration of aerial video imagery of urban traffic", Proc. SPIE 7073, Applications of Digital Image Processing XXXI, 70731N (15 September 2008); doi: 10.1117/12.796785; https://doi.org/10.1117/12.796785

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