<div dir="ltr"><div><div><div>I do work with Public Lab and have a fair amount of experience with the balloon mapping tools. I've not used PL tools to bring imagery into OSM, but my colleague at PL, Liz Barry, gave a talk on the topic at SOTM-US this year: <a href="http://vimeopro.com/openstreetmapus/state-of-the-map-us-2013/video/68100204">http://vimeopro.com/openstreetmapus/state-of-the-map-us-2013/video/68100204</a><br>
<br></div>The Grassroots Mapping listserv might be a good place for questions: <a href="https://groups.google.com/forum/#!forum/grassrootsmapping">https://groups.google.com/forum/#!forum/grassrootsmapping</a> (I'm, of course, happy to answer questions, but these folks have been at it longer than me and doubtlessly know more than I do.)<br>
<br></div>Also, Stewart Long, one of the founders of Public Lab, is an aerial imagery wizard and probably knows a whole lot about this: <a href="http://publiclab.org/profile/gonzoearth">http://publiclab.org/profile/gonzoearth</a><br>
<br></div>Cheers,<br>Jessi<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Oct 28, 2013 at 11:21 AM, Nelson Minar <span dir="ltr"><<a href="mailto:nelson@monkey.org" target="_blank">nelson@monkey.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><div class="im"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
Has anyone here used balloon mapping or these tools (or similar ones) who can share experience, pitfalls, etc.?<br></blockquote><div><br></div></div><div>Public Labs is terrific. I think it shares a similar spirit to OSM in trying to demystify mapping, to put cartographic tools into the hands of ordinary people.</div>
<div><br></div><div>Last year I tagged along on a weekend excursion to produce a high resolution aerial image of Dolores Park in San Francisco. I wrote that experience up on a blog post, also see below for a link to a Leaflet map of the image (albeit with no cartographic base map for context, sorry.)</div>
<div> <a href="http://www.somebits.com/weblog/tech/photo/dolores-park-aerial-map.html" target="_blank">http://www.somebits.com/weblog/tech/photo/dolores-park-aerial-map.html</a><br></div><div> <a href="http://visuallybs.com/maps/balloon/" target="_blank">http://visuallybs.com/maps/balloon/</a><br>
</div><div><br></div><div>Those images were taken from a height of 200 or 400 feet. At that height with ordinary cameras you get a very narrow field of view, good for photographing individual people but not so useful for tracing a road network. It's a great technology for taking specific, up-to-the-day images of particular points of interest.</div>
<div><br></div><div>One specific tool worth looking into is MapKnitter, web-based software for compositing multiple aerial images, correcting perspective, stitching, etc. Details at URL below, the video is a good intro to how it works.</div>
<div> <a href="http://mapknitter.org/" target="_blank">http://mapknitter.org/</a><br></div><div><br></div><div>I wonder if there's a DIY drone community out there also playing with aerial imagery.</div><div><br></div>
</div></div></div>
<br>_______________________________________________<br>
Talk-us mailing list<br>
<a href="mailto:Talk-us@openstreetmap.org">Talk-us@openstreetmap.org</a><br>
<a href="https://lists.openstreetmap.org/listinfo/talk-us" target="_blank">https://lists.openstreetmap.org/listinfo/talk-us</a><br>
<br></blockquote></div><br><br clear="all"><br>-- <br><div dir="ltr">Jessica Breen<br>PhD Student<br>University of Kentucky<br>Department of Geography <br>1422 Patterson Office Tower<br>Lexington, KY 40506 <br><br><a href="http://uky.academia.edu/JessicaBreen" target="_blank">uky.academia.edu/JessicaBreen</a></div>
</div>