- TEST ON IMAGE UNDERSTANDING - TEST ON IMAGE UNDERSTANDING - ISPRS Commission III Working Group 3 In March this year, the Working Group III/3 of the International Society of Photogrammetry and Remote Sensing (ISPRS) has distributed a 'Test on Image Understanding'. The topic of this test is the interpretation of aerial images using additional information and knowledge, e.g. color, stereo, ground-truth from a geographical information system (GIS), range data. Originally, the deadline was October 1994. It turned out however, that this time span was too strict. There are only few people who have complete algorithms to run on the data; many researchers have started to develop their ideas when seeing, what kind of data can be available for image interpretation. Therefore on the occasion of the ISPRS Commission III symposium in Munich we announced, that the deadline was shifted by annother half a year to April 1995. We hope that many researchers take the chance to work with the data and already invite them to a Workshop on COMPUTER VISION IN PHOTOGRAMMETRY in November, 1995 in Stuttgart (8-10.11.1995 - a first announcement and call for papers by the end of this year) and the ISPRS Congress in Vienna in 1995 to present their results. We would also like to ask the researchers who are already working with the data, if there are any problems concerning the data, the task, the questionnaire, ... Please feel free to contact me in case of any problems. As a reminder: the 4 data sets are available via anonymous ftp ftp.ifp.uni-stuttgart.de:/pub/wg3/.... Greetings from Stuttgart, Monika Sester Monika.Sester@ifp.uni-stuttgart.de monika sester - institut fuer photogrammetrie - uni-stuttgart - 0711-1213384