Author: a_valentino-guest Date: Sun Dec 23 08:16:05 2012 New Revision: 3686
URL: http://svn.debian.org/wsvn/blends/?sc=1&rev=3686 Log: Added points2grid and imcorr Modified: projects/gis/trunk/debian-gis/tasks/sar Modified: projects/gis/trunk/debian-gis/tasks/sar URL: http://svn.debian.org/wsvn/blends/projects/gis/trunk/debian-gis/tasks/sar?rev=3686&op=diff ============================================================================== --- projects/gis/trunk/debian-gis/tasks/sar (original) +++ projects/gis/trunk/debian-gis/tasks/sar Sun Dec 23 08:16:05 2012 @@ -337,3 +337,49 @@ . The package currently works with ERA-Interim Reanalysis, NARR and MERRA data, but can be easily extended to support more weather models. + +Depends: imcorr +Homepage: http://nsidc.org/data/velmap/imcorr.html +License: GPL-2.0+ +Pkg-Description: Program to do cross-correlation for motion tracking + IMCORR takes two images and a series of input parameters and attempts + to match small subscenes (called 'chips') from the two images. + The program uses a fast fourier transform based version of a + normalized cross-covariance method. + . + The most common use of this type of algorithm in image processing is + to accurately locate tie-point pairs in two images to coregister them. + However, if the images are already coregistered by other means, the + algorithm may be used to find the displacements of moving features, + provided that the features show little change in their appearance, and + that the motion is strictly translational. + . + The correlation, peak finding, and error estimation routines in IMCORR + are derived from FORTRAN subroutines from the Land Analysis System + software (LAS) written at NASA Goddard Space Flight Center and USGS + Eros Data Center. + . + IMCORR consists of a C code wrapper which makes the use of the + routines more straightforward and automated for velocity-mapping + applications. + +Depends: points2grid +Homepage: http://www.opentopography.org/index.php/resources/otforge/points2grid +License: BSD +Pkg-Description: Generates Digital Elevation Models using a local gridding method + Points2Grid generates Digital Elevation Models (DEM) using a local gridding + method. The local gridding algorithm computes grid cell elevation using a + circular neighbourhood defined around each grid cell based on a radius + provided by the user. This neighbourhood is referred to as a bin, while the + grid cell is referred to as a DEM node. + . + Up to four values â minimum, maximum, mean, or inverse distance weighted + (IDW) mean â are computed for points that fall within the bin. + These values are then assigned to the corresponding DEM node and used to + represent the elevation variation over the neighbourhood represented by + the bin. If no points are found within a given bin, the DEM node receives + a value of null. + . + The Points2Grid service also provides a null filing option, which applies + an inverse distance weighted focal mean via a square moving window of 3, 5, + or 7 pixels to fill cells in the DEM that have null values. _______________________________________________ Blends-commit mailing list [email protected] http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/blends-commit
