On Jan 5, 2008 8:24 AM, maning sambale <[EMAIL PROTECTED]> wrote: ... > The photographs were taken along the flight line using a professional > Kodak N14 digital SLR camera, which has a resolution of 14 megapixels.
You can figure out camera parameters with 'jhead': http://www.sentex.net/~mwandel/jhead/ ... > What do I have now: > over 800 photos > GPS point location for each photo > Quickbird image of the whole study area > > According to their report: > There is difficulty in mosaicking the photographs. The > original plan was to stitch the photographs together to create a > composite image. Indeed, AFAIK you really need to do bundle block adjustment. The i.ortho.photo module is restriced to single frame rectification. I once received a script collection to use Octave and GRASS to perform bundle block adjustment but never got that working (still have the code, we could contact the author). Randomly seeking the internet, I found http://www.ics.forth.gr/~lourakis/sba/ sba: A Generic Sparse Bundle Adjustment C/C++ Package Based on the Levenberg-Marquardt Algorithm (GPL'ed) > But the tilt in the photographs due to the movement of the aircraft > requires that certain adjustments be made. Definitely. Markus -- Open Source Geospatial Foundation http://www.osgeo.org/ http://www.grassbook.org/ _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
