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Open AccessArticle

Multi-Model Estimation Based Moving Object Detection for Aerial Video

School of Computer Science, Northwestern Polytechnical University, Xi'an 710129, China
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Academic Editor: Fabrizio Lamberti
Sensors 2015, 15(4), 8214-8231; https://doi.org/10.3390/s150408214
Received: 8 December 2014 / Revised: 28 March 2015 / Accepted: 30 March 2015 / Published: 8 April 2015
(This article belongs to the Section Remote Sensors, Control, and Telemetry)
With the wide development of UAV (Unmanned Aerial Vehicle) technology, moving target detection for aerial video has become a popular research topic in the computer field. Most of the existing methods are under the registration-detection framework and can only deal with simple background scenes. They tend to go wrong in the complex multi background scenarios, such as viaducts, buildings and trees. In this paper, we break through the single background constraint and perceive the complex scene accurately by automatic estimation of multiple background models. First, we segment the scene into several color blocks and estimate the dense optical flow. Then, we calculate an affine transformation model for each block with large area and merge the consistent models. Finally, we calculate subordinate degree to multi-background models pixel to pixel for all small area blocks. Moving objects are segmented by means of energy optimization method solved via Graph Cuts. The extensive experimental results on public aerial videos show that, due to multi background models estimation, analyzing each pixel’s subordinate relationship to multi models by energy minimization, our method can effectively remove buildings, trees and other false alarms and detect moving objects correctly. View Full-Text
Keywords: aerial video; object detection; multi-model estimation; Graph Cuts aerial video; object detection; multi-model estimation; Graph Cuts
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Zhang, Y.; Tong, X.; Yang, T.; Ma, W. Multi-Model Estimation Based Moving Object Detection for Aerial Video. Sensors 2015, 15, 8214-8231.

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