| Abstract: | In image fusion, the spatial resolution ratio can be defined as the ratio between the spatial resolution of the high-resolution panchromatic image and that of the low-resolution multispectral image. This paper attempts to assess the effects of the spatial resolution ratio of the input images on the quality of the fused image. Experimental results indicate that a spatial resolution ratio of 1:10 or higher is desired for optimal multisensor image fusion provided the input panchromatic image is not downsampled to a coarser resolution. Due to the synthetic pixels generated from resampling, the quality of the fused image decreases as the spatial resolution ratio decreases (e.g. from 1:10 to 1:30). However, even with a spatial resolution ratio as small as 1:30, the quality of the fused image is still better than the original multispectral image alone for feature interpretation. In cases where the spatial resolution ratio is too small (e.g. 1:30), to obtain better spectral integrity of the fused image, one may downsample the input high-resolution panchromatic image to a slightly lower resolution before fusing it with the multispectral image. |
| Genre: | Article |
| ProdID: | 70032072 |
| Citation Author: | Ling, Y.; Ehlers, M.; Usery, E. L.; Madden, M. |
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| Citation End Page: | 2167 |
| Citation Issue: | 7 |
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| Citation Language: | English |
| Citation Larger Work Title: | International Journal of Remote Sensing |
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| Citation Number Of Pages: | 11 |
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| Citation Search Results Text: | Effects of spatial resolution ratio in image fusion; 2008; Article; Journal; International Journal of Remote Sensing; Ling, Y.; Ehlers, M.; Usery, E. L.; Madden, M. |
| Citation Start Page: | 2157 |
| Citation Volume: | 29 |
| Citation Year: | 2008 |
| Type: | citation/reference |
| Text: | Effects of spatial resolution ratio in image fusion; 2008; Article; Journal; International Journal of Remote Sensing; Ling, Y.; Ehlers, M.; Usery, E. L.; Madden, M. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1080/01431160701408345 |
| Date Other: | Tue, 1 Jan 2008 00:00 -0600 |
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