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Brief Summary: Target Tracking from a moving platform Jackie Brosamer.

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Presentation on theme: "Brief Summary: Target Tracking from a moving platform Jackie Brosamer."— Presentation transcript:

1 Brief Summary: Target Tracking from a moving platform Jackie Brosamer

2 Overview We want to track objects with a moving platform, using a map as a reference Local Association: link detected regions within a sliding window and generate tracklets Global Association: link tracklets and maintain track IDs

3 Map-Enhanced Detection Use global map such as a satellite image as reference frame for moving platform instead of first frame Reduced accumulated error Makes coordinates more meaningful (dimensions, latitude/longitude)

4 Geo-Registration First, use homography between consecutive frames Second, refine homography between image and map

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8 Moving Regions For stationary, image sequence modeled at pixel level For moving, we fist model motion and then estimate background Adopt sliding window method

9 Local Data Association Maximize posterior of platforms to create tracklets Based on temporal compatibility within one track and spatial compatibility between tracks

10 Formulation Noisy Data Observations: Find cover over time: Based on –Spatial association –Temporal Association

11 MCMC Data associations Use monte carlo simulation to partition tracks Determine extension/reduction, birth/death, split/move

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13 Global Tracklets Distribution Looks at longer time span to properly association tracklets with identity (esp when longer occlusion etc)


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