Using a DEM to Determine Geospatial Object Trajectories

Robert Collins, Yanghai Tsin, J. Ryan Miller, and Alan Lipton
tech. report CMU-RI-TR-98-19, Robotics Institute, Carnegie Mellon University, 1998


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Abstract
This paper addresses the estimation of moving object trajectories within a geospatial coordinate system, using a network of video sensors. A high-resolution (0.5m grid spacing) digital elevation map (DEM) has been constructed using a helicopter-based laser range-finder. Object locations are estimated by intersecting viewing rays from a calibrated sensor platform with the DEM. Contin-uous object trajectories can then be assembled from sequences of single-frame location estimates using spatio-temporal filtering and domain knowledge.

Notes
Sponsor: DARPA
Grant ID: DAAB07-97-C-J031.

Text Reference
Robert Collins, Yanghai Tsin, J. Ryan Miller, and Alan Lipton, "Using a DEM to Determine Geospatial Object Trajectories," tech. report CMU-RI-TR-98-19, Robotics Institute, Carnegie Mellon University, 1998

BibTeX Reference
@techreport{Collins_1998_475,
   author = "Robert Collins and Yanghai Tsin and J. Ryan Miller and Alan Lipton",
   title = "Using a DEM to Determine Geospatial Object Trajectories",
   booktitle = "",
   institution = "Robotics Institute",
   year = "1998",
   number= "CMU-RI-TR-98-19",
   address= "Pittsburgh, PA",
}