Renewing urban large-scale topographical maps by using of Quick Bird panchromatic remote sensing images

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ÂÛÎÄ×÷ÕߣºSONG Wei-dong KANG Jia-yin

ÎÄÕÂÒ³Â룺156 - 159

Key words£ºQuick Bird£» geometry rectification£» renewing of topographic maps

Abstract: Urban large-scale topographical maps can be renewed by means of overlapping the original digital line graph (DLG) and up-to-date remote sensitive images which have high precision and have been orthographically rectified precisely. Quick Bird panchromatic remote sensing image is used and an urban area with even terrain and dense buildings is selected as experimental area. Ground control points (GCPs) are selected on a new 1¡Ã500 topographical map and multinomial model is applied for rectification. After rectification the absolute positional error of a single point of the image is less than 1¤@m, therefore this method is suitable for renewing topographical maps of up to (1¡Ã2 000) scale.