Abstract
The aim of our study is to realize the useful method to revise GIS in high-frequent with stereo cameras. This paper describes a basic study that measures the size of a building with stereo measurement. Concretely, experimental results show the possibility to measure targets indoors and outdoors. The portable stereo camera on board the captive balloon measures the size of a distant building. Progress of this study can provide 3D coordinates for updating of maps. And, this study is necessary to offer the useful information for the groundwork for reconstruction from the disaster.