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A study of a three-dimensional histogram using the NOAA AVHRR images

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2 Author(s)
J. Kudoh ; Res. Center for Appl. Inf. Sci., Tohoku Univ., Japan ; S. Noguchi

The development of the NOAA satellite Advanced Very High Resolution Radiometer (AVHRR) three-dimensional analysis system, in which the problem of drawing a three-dimensional histogram on a two-dimensional CRT was encountered, is discussed. In this case there are two factors: one is the coordinate position given by the brightness level of the three image channels of NOAA AVHRR, the other is the frequency of the points within the images. To decide the semi-optimum value for displaying the processed three-dimensional histogram, the authors tried to relate the frequency and the total number of pixels. It was found that the standard deviation is reasonable. In the analysis using this method, the differences between major components of the images are displayed in the three-dimensional histogram, allowing the identification of features like sea, land, and clouds by a clustering process

Published in:

IEEE Transactions on Geoscience and Remote Sensing  (Volume:29 ,  Issue: 5 )