Ovidiu Csillik successfully defended his PhD Thesis “Spatio-temporal object-based image analysis for land-use/land-cover mapping”. He started his PhD research in October 2015 within the framework of the Doctoral College “GIScience” and finished his PhD research incredibly fast within 2 years and 10 months.
Ovidiu’s research aimed to develop efficient, fast and accurate OBIA workflows for single and time series satellite images for land-use/land-cover mapping, with a special focus on mapping agriculture. First, he integrated the concept of superpixels into multiresolution segmentation workflows. Subsequently, the incorporation of the temporal domain of the satellite images into the analysis led to the development of object-based workflows for crop mapping from time series of Sentinel-2 satellite images. Finally, an object-based time-constraint dynamic time warping (DTW) workflow was developed in an object-based software environment, the first implementation of DTW in an OBIA framework.
This research has a significant potential to enable automation and objectivity of OBIA workflows for time series data analysis and was documented by six major publications.
Ovidiu will start his Postdoc career at the Department of Global Ecology of Stanford University in the research group of Greg Asner in August 2018.
We wish Ovidiu all the best for his future career and endeavours!