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A novel dense descriptor based on structure tensor voting for multi-modal image matching
Automatic and robust matching of multi-modal images can be challenging owing to the nonlinear intensity differences caused by radiometric variations among these images. To address this problem, a novel dense feature descriptor and improved similarity measure are proposed for enhancing the matching p...
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Published in: | Chinese journal of aeronautics 2020-09, Vol.33 (9), p.2408-2419 |
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Main Authors: | , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Automatic and robust matching of multi-modal images can be challenging owing to the nonlinear intensity differences caused by radiometric variations among these images. To address this problem, a novel dense feature descriptor and improved similarity measure are proposed for enhancing the matching performance. The proposed descriptor is built on a voting scheme of structure tensor that can effectively capture the geometric structural properties of images. It is not only illumination and contrast invariant but also robust against the degradation caused by significant noise. Further, the similarity measure is improved to adapt to the reversal of orientation caused by the intensity inversion between multi-modal images. The proposed dense feature descriptor and improved similarity measure enable the development of a robust and practical template-matching algorithm for multi-modal images. We verify the proposed algorithm with a broad range of multi-modal images including optical, infrared, Synthetic Aperture Radar (SAR), digital surface model, and map data. The experimental results confirm its superiority to the state-of-the-art methods. |
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ISSN: | 1000-9361 |
DOI: | 10.1016/j.cja.2020.02.002 |