On June 17, 2020, Prof. Gottfried Konecny, former head of the Institute for Photogrammetry and GeoInformation (IPI) at Leibniz Universität Hannover, Honorary Member of the German and the International Society for Photogrammetry and Remote Sensing as well as a number of other scientific associations, celebrated his 90th birthday. Gottfried Konecny had taken over the institute in 1971 when he returned from Canada after 12 years, making it one of the best addresses in photogrammetry and remote sensing worldwide. He retired in 1998, but is still one of the most important and well-known representatives of our field worldwide. On the occasion of his birthday, his former institute organized a video conference with about 200 participants, in which various companions and students gave lectures about their cooperation with and connection to Gottfried Konecny.
| Christian Heipke, Leibniz Universität Hannover | Gottfried Konecny: From Draftsman to Professor emeritus – 75 Years of Involvement in Photogrammetry Video | Presentation |
| IPI - Music I | |
| Armin Gruen, ETH Zürich | Of Elephants and Crocodiles – The Converging of Lifelines Video | Presentation |
| Shunji Murai, University of Tokyo | Lessons from Gottfried in my Life Video | Presentation |
| Larry Fritz, Lockhead Martin Corp. | Over 50 Years in ISPRS – The Ambassador of our Profession Video | Presentation |
| Deren Li, Wuhan University | Gottfried in China - his Role in the Development of the Chinese Photogrammetry and Remote Sensing Video | Presentation |
| Lena Halounova, TU Prag | Gottfried and his Scientific Cooperations Video | Presentation |
| Laurent Polidori, Cesbio Toulouse | From Laussedat to Learning Machines: What can we learn from History? Video | Presentation |
| Jan Dirk Wegner, ETH Zürich | Quo Vadis Photogrammetry? Video | Presentation |
| IPI - Music II | |
| Birthday greetings by Gottfried''''''''s Family Best wishes of guests of the session Reply by Gottfried Konecny Video |
