| Abstract: | The Advanced Land Imager (ALI) instrument on NASA‘s Earth Observing One (EO-1) satellite provides for nine spectral bands at 30m ground sample distance (GSD) and a 10m GSD panchromatic band. This report describes an image sharpening technique where the higher spatial resolution information of the panchromatic band is used to increase the spatial resolution of ALI multispectral (MS) data. To preserve the spectral characteristics, this technique combines reported deconvolution deblurring methods for the MS data with highpass filter-based fusion methods for the Pan data. The deblurring process uses the point spread function (PSF) model of the ALI sensor. Information includes calculation of the PSF from pre-launch calibration data. Performance was evaluated using simulated ALI MS data generated by degrading the spatial resolution of high resolution IKONOS satellite MS data. A quantitative measure of performance was the error between sharpened MS data and high resolution reference. This report also compares performance with that of a reported method that includes PSF information. Preliminary results indicate improved sharpening with the method reported here. |
| Genre: | Conference Paper |
| ProdID: | 70027958 |
| Citation Author: | Lemeshewsky, G. P. |
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| Citation Editor: | Rahman Z.Schowengerdt R.A.Reichenbach S.E. |
| Citation End Page: | 346 |
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| Citation Language: | English |
| Citation Larger Work Title: | Proceedings of SPIE - The International Society for Optical Engineering |
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| Citation Number Of Pages: | 11 |
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| Citation Search Results Text: | Sharpening advanced land imager multispectral data using a sensor model; 2005; Conference Paper; Proceedings of SPIE - The International Society for Optical Engineering; Lemeshewsky, G. P. |
| Citation Start Page: | 336 |
| Citation Volume: | 5817 |
| Citation Year: | 2005 |
| Type: | citation/reference |
| Text: | Sharpening advanced land imager multispectral data using a sensor model; 2005; Conference Paper; Proceedings of SPIE - The International Society for Optical Engineering; Lemeshewsky, G. P. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1117/12.604517 |
| Date Other: | Sat, 1 Jan 2005 00:00 -0600 |
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