期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2010
卷号：XXXVIII - 1/W17
出版社：Copernicus Publications
摘要：Near real time monitoring of natural disasters, mass events, and large traffic disasters with airborne optical sensors is afocus of research and development at the German Aerospace Center (DLR). For this purpose, a new airborne camerasystem was developed named 3K camera system (3K = “3Kopf-Kamera”). Image data are processed onboard on fiveonboard processing units using data from a real time GPS/IMU system. Processed data are sent to ground via two typesof data links, a commercial microwave operating in the S-band. This system is called ARGOS. The data received by theground antenna are further processed and distributed directly to the ground forces and to different institutions like theZKI (Center for Satellite Based Crisis Information) and a traffic portal of DLR. The time span between acquisition andreception at the end user is about 5 minutes. Main focus in the current development is the traffic processor, whichextracts traffic information like traffic density and vehicle velocity from 3K image sequences. The information from aroad database is used for the road and vehicle detection in the georeferenced images. Another application is the thematicmapping of natural disasters like floods, land slides, and damages after earth quakes. The requirements of civil securityand rescue forces for a near real time airborne monitoring system were integrated in the first prototype system, whichshould be ready in the middle of 2009. National cooperation partners are the Federal Office of Civil Protection andDisaster Assistance (BBK) and the Federal Agency for Technical Relief (THW) supplemented by different regionalcivil security institutions in the two demonstration regions Cologne and Munich. The future plan is to operate a quicklyreacting mobile ground station and an airplane on standby for monitoring of natural disasters and mass events. In thispaper the relevant parts of the overall system and selected system processes are addressed and described. Theexperiences made in the flight campaigns of the last years are summarized with focus on the image processing part, e.g.reached accuracies of georeferencing and the traffic processors
关键词：Aerial cameras; image series; near real time processing; traffic parameter extraction; direct georeferencing;emergency response; middleware
