JU Xi-nuo, GUO Wen-pu, SUN Ji-yin etc. Matching probability metric for remote sensing image based on interest points[J]. Editorial Office of Optics and Precision Engineering, 2014,22(4): 1071-1077
JU Xi-nuo, GUO Wen-pu, SUN Ji-yin etc. Matching probability metric for remote sensing image based on interest points[J]. Editorial Office of Optics and Precision Engineering, 2014,22(4): 1071-1077 DOI: 10.3788/OPE.20142204.1071.
Matching probability metric for remote sensing image based on interest points
To improve the effectiveness of reference map preparation
the matching probability of a remote sensing image was investigated. A matching probability metric for the remote sensing image was proposed based on interest points. Firstly
the local extreme points obtained from high frequency coefficients of non-subsampled Contourlet transform were set as interest points. Then
the amplitude and structure properties of interest points were defined by the frequency coefficients and direction information. Finally
the matching metric was established based on the analysis of the relationship between amplitude and structure properties and real matching probability. Experiments show that the correlation coefficient of the metric and real matching probability is greater than 0.9 and the Spearman rank order correlation coefficient is greater than 0.85 with high accuracy and consistency. Matching region extraction by using the proposed index gives the average matching probability of more than 95% for reference maps
increasing 15.4% more than traditional methods. It improves the efficiency and the reliability of reference map preparation.
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references
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