A flow-based approach to vehicle detection and background mosaicking in airborne video.

Hulya Yalcin, Robert Collins, Michael Black, and Martial Hebert
tech. report CMU-RI-TR-05-11, Robotics Institute, Carnegie Mellon University, March, 2005


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Abstract
We address the detection of vehicles in a video stream obtained from a moving airborne platform. Our approach is based on robust optical flow algorithm applied on stabilized frames. Stabilization of the frames compensates for gross affine background motion prior to running robust optical flow to compute dense residual flow. Based on the flow and the previous background appearance model, the new frame is separated into background and foreground occlusion layers using an EM-based motion segmentation. The proposed framework shows that ground vehicles can be detected and segmented from airborne video sequences while building a mosaic of the background layer.

Keywords
background mosaicking, optical flow, motion estimation, vehicle detection

Notes
Associated Center(s) / Consortia: Vision and Autonomous Systems Center
Number of pages: 15

Text Reference
Hulya Yalcin, Robert Collins, Michael Black, and Martial Hebert, "A flow-based approach to vehicle detection and background mosaicking in airborne video.," tech. report CMU-RI-TR-05-11, Robotics Institute, Carnegie Mellon University, March, 2005

BibTeX Reference
@techreport{Yalcin_2005_5449,
   author = "Hulya Yalcin and Robert Collins and Michael Black and Martial Hebert",
   title = "A flow-based approach to vehicle detection and background mosaicking in airborne video.",
   booktitle = "",
   institution = "Robotics Institute",
   month = "March",
   year = "2005",
   number= "CMU-RI-TR-05-11",
   address= "Pittsburgh, PA",
}