INTEGRATION OF MULTISOURCE DATA - COMPARI SON OF GEOMETRIC AND RADIOMETRIC METHODS

Multisource data integration requires geometric and radiometric proces sing adapted to the nature and the characteristics of the data in orde r to keep the best information available of each image in the composit e image. This article compares different geometric and radiometric pro cessing techniques and evaluates, quantitatively and qualitatively, th eir impact on the resulting composite images, using panchromatic SPOT and airborne SAR images. The techniques that take into account the nat ure of the data give better and more solid results: subpixel geometric accuracy, and high quality composite images, which are sharp and prec ise containing well-defined cartographic elements and information that are easy to interpret and closer to physical reality.