The Office of Research and Development, with major involvement and support from the Defense Advanced Research Projects Agency (DARPA), has begun a highly applications- oriented project intended to provide image understanding (IU) technology in a fully and semi- automated support system of human-machine interface interactive tools to the photo interpreter and imagery analyst (IA). The central concept of Research and Development for Image Understanding Systems (RADIUS) is that of model supported exploitation. Two- and/or three dimensional site models are developed and/or maintained by analysts using imagery source data, imagery-derived information, and appropriate non-imagery sourced information (often called collateral). IU technology and necessary non-IU technology are used where feasible to integrate this base of information which can be accessed spatially via the now-developed site model and displayed or rendered in support of the IA during the imagery exploitation and reporting process. As new imagery is obtained, it may be registered to the site model, or through the site model to other images, to support the specific exploitation tasks and applications which will be developed. The current effort is the concept definition phase. This phase will determine the viability of current technology to perform these tasks and will define future activities.
Donald J. Gerson, Donald J. Gerson,
"RADIUS: the government viewpoint", Proc. SPIE 1623, The 20th AIPR Workshop: Computer Vision Applications: Meeting the Challenges, (1 April 1992); doi: 10.1117/12.58055; https://doi.org/10.1117/12.58055