Structure-aware image fusion
- Publication Type:
- Journal Article
- Citation:
- Optik, 2018, 172 pp. 1 - 11
- Issue Date:
- 2018-11-01
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1-s2.0-S003040261830932X-main.pdf | Published Version | 5.13 MB |
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© 2018 Elsevier GmbH Most existing multi-modal image fusion methods require multi-scale transforms. However, this requirement does not necessarily lead to the fusion result containing the original intensity of source images, and multi-scale transforms need a high computational complexity. In this paper, we tackle the problem of multi-modal image fusion in the spatial domain with a low computational complexity. A salient structure extraction method and a structure-preserving filter are developed to fuse medical images. The developed structure-preserving filter has a property that it recovers small-scale details of the guidance image in the neighborhood of large-scale structures of the input image. Based on the property of the structure-preserving filter, the fusion result is constructed by combining the output of the structure-preserving filter and the source images. Experiments are conducted to demonstrate the effectiveness of the proposed method in comparison with the state-of-the-art approaches in terms of three performance metrics.
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