@tim waters -- can I assume from the content of you email that you either wrote, or at least understand the code and maths running on warper?
If so, if you have time, could you please take a look at the technology implemented in Panorama Tools / Hugin (I'd be happy to help you with it as a user of the software) -- it searches images for comon points, and automatically adds control points between images. this is not directly usable as control points in the sense that warper uses them, but I get the feeling that it's the closest to viable solution i've seen so far. If these 2 concepts were knited together (no pun intended) a managable number of proper contol points could be added accross a whole city to acuratly rectify it as opposed to the 20*600 that are needed as is. Could I also request the adition of control lines, which could be added on roads -- as such roads could be added as controls, even where the ends are not accessable -- even automatically, or is that a pipe dream? Also, can you inform me, does warper have support for correcting barel and pincusion distrotions?, I'm not sure if 3rd order polynomials are able to handle that. in the case of this survey, I chose a lens that had very low distortion for that reason, but other users may not have that option. @peter miller -- you want the whole data set, you can either post me a memory card, and i can post it back or i can post you some dvds. formats available are: high quality jpeg, not sure exactly, but should fit on a DVD; tif/zip 6GB; raw 10GB (not recomended as I've had to contract stretch due some perspex induced contrast issues) Thanks, JR 2009/9/13 Tim Waters (chippy) <chippy2...@gmail.com> > Hi, yes was about to suggest map warper (warper.geothings.net) it can > handle oblique photos, given enough control points (which you'd need for a > desktop equivalent) > > However, the server it's running on is crappy and shared and stingy on > processes that need some power, so I've had to restrict it so that its only > good for a few images where each image is about 1500x1500. Multiple images > can then be stitched together. So would be best for lots of images which can > be collaborativley rectified. > > However, the code is open source, and I have another unrestrcited server > available which would be able to work with much larger images. if you would > like a bespoke online warper instance. Let me know :) > > Cheers. > > Tim > http:thinkwhere.wordpress.com > (sent from a phone) > > On Sep 13, 2009 4:04 PM, "John Robert Peterson" <jrp....@gmail.com> wrote: > > As for plans for how -- I sent an email to the OAM list for advice, and > haven't gotten a reply. > > As for hosting, that's even more of a mystery. > > I'm not planning to put them all online in the short term -- while flickr > would be able ot hold all 10GB of data, it would be an almost imposable ot > access format. > > If anyone know how to process this type of data, or has even a little info > that may be hlpful, please come with it. > > I had a go with http://warper.geothings.net -- the results were > disappointing, and exceedingly slow. It's a good service, but it's designed > for rectifying maps, not oblique photos. > > I have been investigating the possibilities of using something like > Panorama Tools / hugin -- they are designed for panoramas, but the idea of > auto identifying matching points between a set of images, and using them as > the reference points for stitching sounds very appealing. If anyone knows of > a way to do this, please help. > > If anyone wants a copy of the complete data set for anything open > source/creative commons/sensible -- let me know, we can come ot some > arangment involving posting things. > > JR > > > > 2009/9/13 Thomas Wood <grand.edgemas...@gmail.com> > > > > I did note there was a call for help with rectifying. > > Are there any > plans yet for how this ... > > > _______________________________________________ > Talk-GB mailing list > Talk-GB@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-gb > >
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