کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
528813 | 869611 | 2013 | 12 صفحه PDF | دانلود رایگان |
Given multiple source images of the same scene, image fusion integrates the inherent complementary information into one single image, and thus provides a more complete and accurate description. However, when the source images are of low-resolution, the resultant fused image can still be of low-quality, hindering further image analysis. To improve the resolution, a separate image super-resolution step can be performed. In this paper, we propose a novel framework for simultaneous image fusion and super-resolution. It is based on the use of sparse representations, and consists of three steps. First, the low-resolution source images are interpolated and decomposed into high- and low-frequency components. Sparse coefficients from these components are then computed and fused by using image fusion rules. Finally, the fused sparse coefficients are used to reconstruct a high-resolution fused image. Experiments on various types of source images (including magnetic resonance images, X-ray computed tomography images, visible images, infrared images, and remote sensing images) demonstrate the superiority of the proposed method both quantitatively and qualitatively.
► The similarity between fusion and super-resolution is considered sufficiently.
► A framework of simultaneous image fusion and super-resolution is proposed.
► Sparse representation over learned dictionary is used to implement this framework.
► High resolution fused image is obtained from low resolution source images.
Journal: Information Fusion - Volume 14, Issue 3, July 2013, Pages 229–240