geo4women scholarship report 2016
This year's geo4women scholarship, which is awarded annually by the research group remote sensing, was given to Inmaculada García Dópido. We are happy to share her report on her work and her personal experiences in Vienna:
"The activity carried out during the research scholarship has been related to the analysis and segmentation of Sentinel-1 data sets of the Earth's surface, provided by remote sensing earth observation. I had the opportunity to work with a great research group in a great city. Particularly, the most important challenge of this research has been focused on the specific areas in Sentinel-1 data sets where the radar signal provides unexpected results. In these cases, the signal offers the opposite spectrum in comparison to the rest of the pixels. One of the main characteristics of these specific pixels is that these unexpected results are presented in very dry areas. For instance, this phenomenon can be observed in some areas of Spain. For this reason, this research work has been developed in four areas of Spain which offer this characteristic.
For this purpose, segmentation techniques have been selected in which the goal of these algorithms is to simplify the representation of an image using small segments or a set of contours extracted from the original image based on some metrics using the spatial information. These segments have been used to delineate these specific areas using the radar data in order to establish an alternative approach to apply directly to the radar data and look for features in these. There are several potential advantages resulting from the use of these algorithms in which the inclusion of spatial information will give us a chance to identify these pixels. Three segmentation algorithms have been explored directly related to the new advanced techniques for the segmentation and interpretation of high-dimensional satellite image. The effectiveness of the proposed approach has been shown to be useful during the interpretation process where there are several potential advantages resulting from the use of spatial information as criterion to discriminate this set of specific pixels.
My personal experiences during the stay were a great discovery for me: I could live in Wien for two month and able to work the "Viennese style". I felt very welcome since the first moment and I enjoyed getting to know the research group. When I was in Wien, I found myself surprised by many things, but especially by three facts I wasn’t expecting about this city. Wien is one of the most beautiful city I had ever been to, particularly its architecture and the classical monuments. Also important was the bicycle; it was my main transport in this city. I enjoyed riding on bike through the city a lot, even to go to work. And finally, I would like to remark the musical culture, it is possible to find in this city a lot classical operas, theatre, dance festivals … it is impossible to be bored in this city if you love music.
Finally, I would like to thank Dr. Alexander Gruber and Prof. Wolfgang Wagner for their collaboration, their great help and support during this research visit in the Department of Geodesy and Geoinformation of the TU Wien."
Thank you Inmaculada for staying with us this summer!
Microwave Remote Sensing
Nov. 29, 2016