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25 November 1986 Improving Spot Images Size And Multispectral Resolution
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In order to take advantage of all the capabilities of SPOT system, we developed new methods for mosaicking SPOT images and increasing the ground resolution of multispectral data. The mosaicking method uses the capability of acquiring data with HRV instruments in twin mode of operation (overlap of three kilometers between the two data strips) to obtain an image size of approximately 117 by 110 kilometers. To reduce the processing time, we do not use a general mosaicking method, but a simplified one which takes into account the radiometric and geometric performances of the SPOT satellite. One of the major SPOT advantages is to provide data with a 10 meters resolution. In order to take fully advantage of this capability, we designed a process which can produce multispectral SPOT images with a 10 meters resolution. To achieve this goal, we had to design special geometric corrections which can insure a perfect superimposability of the Panchromatic and multispectral data. An other exposed problem is linked with the mixing method to be used, in order to insure a good radiometric result. These products have been developped on an operational way, in order to be sold in a near future by SPOT IMAGE.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D Pradines "Improving Spot Images Size And Multispectral Resolution", Proc. SPIE 0660, Earth Remote Sensing Using the Landsat Thermatic Mapper and SPOT Sensor Systems, (25 November 1986);

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