An algorithm for radar scene matching based on multi-area selection using fuzzy sets

Weidong Yang; Zhengrong Zuo; Tianxu Zhang; Haicen Mao

doi:10.1117/12.655229

3 November 2005 An algorithm for radar scene matching based on multi-area selection using fuzzy sets

Weidong Yang, Zhengrong Zuo, Tianxu Zhang, Haicen Mao

Proceedings Volume 6044, MIPPR 2005: Image Analysis Techniques; 60441M (2005) https://doi.org/10.1117/12.655229
Event: MIPPR 2005 SAR and Multispectral Image Processing, 2005, Wuhan, China

Abstract

Radar scene matching technique has been widely found in many application fields such as remote sensing, navigation, terrain-map match, scenery variance analysis and so on. Radar image geometry is quite different from that of optical satellite imagery, whose imaging is a slanting imaging of electromagnetic microwave reflection. The different characters between radar image and optical satellite images are very distinct, such as the layover distortion of ground-truth and speckle noise, which degrades the image to such an extent that the features are very unclear and difficult to be extracted. So the factors such as the hypsography, ground truth, sensor altitude and imaging time should be taken into account for radar image and optical image matching. In this paper, we develop an image match algorithm based on reference map multi-area selection using fuzzy sets. Image matching is generally a procedure that calculates the similarity measurement between sensed image and the corresponding intercepted image in reference map and it searches the maximum position in the correlation map. Our method adopts a converse matching strategy which selects multi-areas in optical reference map using fuzzy sets as model images, then match them on the sensed image respectively by normalized cross correlation matching algorithm and fuse the match results to get the optimum registered position. Multi-areas selection mainly considers two influence factors such as ground-truth texture features and the hypsography (DEM) of imaging region, which will suppress the influence of great variance imaging region. Experiment results show the method is effective in registering performance and reducing the calculation.

Citation Download Citation

Weidong Yang, Zhengrong Zuo, Tianxu Zhang, and Haicen Mao "An algorithm for radar scene matching based on multi-area selection using fuzzy sets", Proc. SPIE 6044, MIPPR 2005: Image Analysis Techniques, 60441M (3 November 2005); https://doi.org/10.1117/12.655229

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KEYWORDS

Radar

Image sensors

Radar imaging

Distortion

Fuzzy logic

Synthetic aperture radar

Sensors

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