[talk-ph] Automatic road tracing from satellite imagery?

maning sambale emmanuel.sambale at gmail.com
Fri Feb 4 02:19:13 GMT 2011


Not yet useful.  I tested both the silverlight and openlayers demo.  I
can't create a nice road trace both for straight grids and curvy
baguio type roads.  Since the algorithm depends on imagery color, I
think tracing quality will depend on the image contrast, which varies
for different areas.

It would be nice if the app can manipulate the base imagery like
setting image contrast to highlight the roads before tracing.

Once the basic code/api is released by Bing, I'm sure osm-geeks can
develop the algorithm much better. ;)

On Fri, Feb 4, 2011 at 8:40 AM, Eugene Alvin Villar <seav80 at gmail.com> wrote:
> Here's something somebody whipped up to play around with things:
> http://maps.qualitystreetmap.org/bingtracing/
>
>
> On Fri, Feb 4, 2011 at 8:37 AM, George Tujan <gtujan at gmail.com> wrote:
>> now that's pretty cool!
>>
>> On Fri, Feb 4, 2011 at 2:23 AM, Eugene Alvin Villar <seav80 at gmail.com>
>> wrote:
>>>
>>> See this blog post:
>>>
>>> http://www.bing.com/community/site_blogs/b/maps/archive/2011/02/03/automatically-detect-roads-with-bing-aerial-imagery.aspx
>>>
>>> And this YouTube video:
>>> http://www.youtube.com/watch?v=LR0WV2dGIRc
>>>
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>>
>>
>
>
>
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>
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-- 
cheers,
maning
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