"Maybe we could encourage sites like Flickr to add Open Voxel Space specific tags!"
What would those tags be exactly and/or could machine tags [1] play them on TV ? [1] http://www.flickr.com/groups/api/discuss/72157594497877875/ Eric Wolf wrote: > Anselm, > > This is a fantastic idea! > > I'd like to suggest that a BOINC client be developed so that the heavy > processing can be done via volunteer cpu cycles. Micrsoft is already > having to deal with the energy consumption issues of the CPU power > needed to wide application of photosynth: > > https://mail.google.com/mail/?source=navclient-ff#inbox/11adaf6fc25718df > > A grid, volunteer model would allow for greater breadth of voxel > modeling than I think even Microsoft can acheive with dedicated CPUs. > Maybe we could encourage sites like Flickr to add Open Voxel Space > specific tags! > > -Eric > > On Mon, Jun 30, 2008 at 1:32 PM, Anselm Hook <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > I wanted to just share the observation that it might be time for us > all as a community to look at building a kind of open photosynth - > what could be called an 'open voxel space' map of the planet. > > Microsoft's photosynth project stitches together a series of > arbitrary user photographs of a scene, taken from different angles > and perspective and melds into a single seamless 3d image of that > setting. The way this works is that each image has notable feature > points on it, and between any two images there may be zero or more > shared feature points. If you have enough similar feature points > then you can effectively say that these two images overlap each > other in some way. Given two photographs of a building, say from > two people standing at two different places, you can start to > re-constitute a 3d voxel model of that building from just those two > photographs. > > The goal would be to start collecting all photographs and building > an open 3d model of the photographed planetary surface of earth. > Basically one would be building a kind of open voxel space - a 3d > model of our cities and spaces - and this could help with other > projects. > > The algorithms are not hard to use, there are open source > implementations (google SIFT) - and even if they algorithms suck > right now they will improve over time. It's mostly just a scaling > problem; how and where to aggregate or index or store the images. > In fact I strongly recommend at least playing with one of the open > source SIFT implementations - it is a lot of fun and gives you a > taste for the possibilities. > > Generally I feel that the best data is more data. An Open Voxel > Space could help with lots of other problems. We define and attach > labels to streets as a way of doing a kind of manual position > sensing. We of course care to know about streets and paths because > we cannot walk through walls. > > Good voxel data could help fix up bad GPS data among other things... > and it would help increase the usability of GPS data therefore and > reduce the necessity for thinking about streets and labels. With > enough good data a router would simply pick from the most common > recent existing full gps track between the two points... > > Also (and this is less firm, more speculative, but still seems > marginally relevant): maybe a voxel map of space; that wasn't just > focusing on labelled streets or paths, but on space in general, > might also help with the puzzle of better delivering real time and > volatile data to people - "just in time knowlege" - the "help I lost > a kitten" kinds of stuff. It's unclear to me why there isn't really > a kind of real-time bartering service yet - perhaps twitter is > closest - but one that focuses more on discrete signalling for very > specific services; rather than just "saying"... Maybe a better map > of space could help - maybe the issue is that "distance" between > things is blocked by buildings in a way that street-maps don't quite > convey and when that is not clearly factored in it acts as a barrier > to surmounting distance? > > > > > _______________________________________________ > Geowanking mailing list > [email protected] <mailto:[email protected]> > http://lists.burri.to/mailman/listinfo/geowanking > > > > > -- > -=--=---=----=----=---=--=-=--=---=----=---=--=-=- > Eric B. Wolf 720-209-6818 > PhD Student CU-Boulder - Geography > > > ------------------------------------------------------------------------ > > _______________________________________________ > Geowanking mailing list > [email protected] > http://lists.burri.to/mailman/listinfo/geowanking _______________________________________________ Geowanking mailing list [email protected] http://lists.burri.to/mailman/listinfo/geowanking
