ISPRS-Annals ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences ISPRS-Annals ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci. 2194-9050 Copernicus Publications Göttingen, Germany 10.5194/isprsannals-II-3-W5-165-2015 Preface 19 08 2015 II-3/W5 165 165 Copyright: © 2015 2015 This work is licensed under the Creative Commons Attribution 3.0 Unported License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/3.0/ This article is available from https://isprs-annals.copernicus.org/articles/II-3-W5/165/2015/isprs-annals-II-3-W5-165-2015.html The full text article is available as a PDF file from https://isprs-annals.copernicus.org/articles/II-3-W5/165/2015/isprs-annals-II-3-W5-165-2015.pdf