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========================================================= Surrey Space Centre urban change detection tool for SAR ========================================================= Copyright (C) 2013 Peter Brett <email@example.com> Introduction ============ This package provides a tool for urban change detection using curvilinear features extracted synthetic aperture radar (SAR) images, as part of research into detection of earthquake damage in urban areas. It was developed at Surrey Space Centre at the University of Surrey in Guildford, UK. The algorithm used by the tool is described in: Brett, Peter T.B. and Guida, Raffaella. "Geometry-based SAR curvilinear feature selection for damage detection," Synthetic Aperture Radar, 2012. EUSAR. 9th European Conference on, pages 62-65, 23-26 April 2012. Programs ======== This package provides a program called `ridge-changemap'. It generates plots of detected change signatures, and requires three inputs. 1) A set of curvilinear features in a ridge data file. These are extracted from a pre-event SAR image with `ridgetool' (available in the `ssc-ridge-tools' package). Usually, building-related features will have been found by classifying the ridge data file, using one of the tools in the `ssc-ridge-classifiers' package. 2) A pre-event SAR image, as a 32-bit floating point TIFF file. 3) A post-event SAR image, as a 32-bit floating point TIFF file. This must have been coregistered with the pre-event SAR image. There are two current output modes available. The `ridgelines' mode draws curvilinear features as vectors coloured according to change level. The `ridgemask' mode draws a raster image with pixels that lie under curvilinear features coloured according to change level (as described in the paper cited above). Installation and dependencies ============================= Dependencies ------------ In order to compile and install the 'ssc-urban-change' package, you must have the following tools and libraries installed: - A C compiler and standard library (GCC 4.7 or later and glibc are recommended). - The `pkg-config' tool for managing shared libraries. <http://pkgconfig.freedesktop.org/> - The 'ssc-ridge-tools' package. <https://github.com/peter-b/ssc-ridge-tools> - GTK+ (the Gimp Toolkit), version 2.10.0 or later. <http://www.gtk.org/> - Cairo vector graphics library, version 1.8.0 or later, with PNG, PDF and SVG support available. <http://www.cairographics.org/> - LibTIFF. <http://www.libtiff.org/> If you are compiling from the 'ssc-urban-change' git repository, you will also require: - The `git' version control tool, version 1.6 or newer. <http://git-scm.com/> - GNU Automake, version 1.11.0 or newer. <http://www.gnu.org/software/automake/> - GNU Autoconf, version 2.60 or newer. <http://www.gnu.org/software/autoconf/> - GNU Libtool. <http://www.gnu.org/software/libtool/> Configuration and compilation ----------------------------- If you are building from git, clone the repository and set up the source tree: git clone git://github.com/peter-b/ssc-urban-change.git cd ssc-urban-change ./autogen.sh Otherwise, extract the source files. You can then proceed to configure, compile and install the tools in the usual manner: ./configure make make install For a full list of the options that can be passed to 'configure', please see: ./configure --help License ======= Surrey Space Centre urban change detection tool for SAR (this package) is freely distributable under the GNU Public License (GPL) version 3.0 or (at your option) any later version. See the `COPYING' file for the full text of the license. The programs and associated files are: Copyright (C) 2013 Peter Brett <firstname.lastname@example.org> .. Local Variables: mode: text End: