As you might know, the 53rd Photogrammetric Week will take place again in Stuttgart from September 5 – 9, 2011. The Photogrammetric Week enjoys international recognition as an upgrading seminar for the disciplines Photogrammetry, Remote Sensing and Geoinformatics – this regular event was already initiated in 1909 by Carl Pulfrich. The 53rd Photogrammetric Week will be headlined by “Multiray Photogrammetry Meets Advanced LiDAR” und will focus on special topics, either in contrast or continuation with the former events of the Photogrammetric Week Series. I would like to cordially invite you to attend the conference. In the attachment you will find the 1st Announcement. For more information, please visit our web pages http://www.ifp.uni-stuttgart.de/phowo/index.en.html