Higher resolution images for visible and near infrared bands of LANDSAT-7 ETM+ by using panchromatic band

Details Higher resolution images for visible and near infrared bands of LANDSAT-7 ETM+ by using panchromatic band Higher resolution images for visible and near infrared bands of LANDSAT-7 ETM+ by using panchromatic band

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003adspr..32.2269o&link_type=abstract

Advances in Space Research, Volume 32, Issue 11, p. 2269-2274.

Physics

2

Scientific paper

Landsat-7 ETM+ (Enhanced Thematic Mapper Plus) simultaneously acquires multispectral image data with three different spatial resolutions; 30 meters for Band 1-5 and 7 (visible, near infrared and short wave infrared bands), 60 meters for Band 6 (thermal band) and 15 meters for Band 8 (panchromatic band). The spectral range of Band 8 is 520-900 rum and those of Bands 2, 3, and 4 are 530-610, 630-690 and 780-900 run respectively. Multispectral Band 2, 3 and 4 data at a 15 meter spatial resolution were generated by fusing with the higher resolution Band 8 data. Four methods are tested i.e. HSI (Hue, Saturation, Intensity) transformation, Brovey transformation and two proposed methods which utilize the statistical features of the multispectral and panchromatic data. The result indicates that in HSI and Brovey transformations the fusion of Band 8 data has reduced the numerical values of the average and the standard deviations of the original data while the proposed methods have generated the data of almost same color tone with nearly same values of average and standard deviations of the original data.

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