Stefan studied physics in Kiel and did his PhD on an interdisciplinary project to develop an optical system to measure the crop nitrogen status on-line from a tractor during fertilizer application. After that, he joined Yara, continued the work and further developed the system towards a commercial product, the N-Sensor.
Working as a research scientist, Stefan got involved into numerous projects dealing with remote sensing, precision farming and image analysis as well as with hardware and software development. With more than 20 years of experience, he provides the algorithms that turn satellite images into application maps.