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30 October 2009 The optical-flow aided navigation for the INS
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Proceedings Volume 7495, MIPPR 2009: Automatic Target Recognition and Image Analysis; 74952S (2009)
Event: Sixth International Symposium on Multispectral Image Processing and Pattern Recognition, 2009, Yichang, China
The inertial navigation system (INS) is an efficient navigation method but it can occur accumulative errors. To correct this error in the INS, this paper presents a novel optical-flow aided navigation method by studying the terrain aided navigation, which can implement the continuous error estimation of the INS by employing the extended kalman filter that regards optical-flow as its measurement parameter. Therefore, this aided method is similar to the terrain aided navigation except that the measurement parameter and equation are both derived from optical-flow instead of terrain height. Experiments with some actual aerial image sequences have proven the efficiency of this aided navigation method.
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Chao Pan, Jianguo Liu, and Wei Xiao "The optical-flow aided navigation for the INS", Proc. SPIE 7495, MIPPR 2009: Automatic Target Recognition and Image Analysis, 74952S (30 October 2009);

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