"AW3D" satellite based three dimensional map and its application to infrastructure management

Abstract

"AW3D " satellite based highly accurate three dimensional map covering the entire land area on the Earth is developed, which accuracy has been close to that of aerial photos. The accuracy enhancement was achieved thanks to the improvements of satellite image resolution, number of satellites and an innovative image processing technique using a large number of satellite images. Furthermore, the integration of the satellite 3D and ground sensor is studied to enhance the reality of 3D city model. AW3D achieves 50cm resolution 3D map over Japan and 2.5m resolution 3D map over the world, and has started the update of the map over Japan since 2022.