[OSM-dev] Develop a Simple Mapping Tool for Mobile Phones
Yarik
Iaroslav.Sheptykin at hs-bremen.de
Thu Mar 24 10:08:19 GMT 2011
Hi Nic!
> No, I haven't looked at it.
I have just checked it out. Doesn't seem much. It is a trivial
web based app. They are using phonegap for interfacing platform
API, therefore it is not a native Android application. phonegap
has API for accessing camera, PGS sensor and compass, though, so
the further development of this project could be considered.
> But in the short term there is no image processing necessary. Simply
> show the user a crosshair. He can then take multiple "shots" of an
> object to collect it's height and location.
I trust you that for this particular application no image
processing is required. I am not familiar that much with the
triangulation process. Nevertheless it could be interesting to
have a look into http://opencv.willowgarage.com/wiki/Android in
order to support the "long term" ideas. This though is not a
part of phonegap therefore requires a navtive app or the
processing must take place on a server.
You have offered help in triangulation in one of the prev
emails. A couple links would be awesome for a quick
initialization. Thanks in advance!
Greets,
Yarik
On Wed, 2011-03-23 at 20:22 +0200, Nic Roets wrote:
> On Wed, Mar 23, 2011 at 5:30 PM, Yarik <Iaroslav.Sheptykin at hs-bremen.de> wrote:
> > Hi Nic!
> >
> > Great to hear! I has been thinking of building a tool like that
> > for quite a long time already with slightly different
> > functionality than you describe but still very similar. I wrote
> > already that I worked on location based mobile games. In many
> > games players are encouraged to take pictures of different
> > objects. The challenge I always faced in data analyzes was to
> > extract any useful information out of those pics about features
> > (landmarks in particular). You offer an interesting approach. Do
> > you know anything about the last year SoC project? Would it make
> > sense to extend its achievements?
>
> No, I haven't looked at it.
>
> > Since you say such apps are useful for community, I will develop
> > the idea further. I will also try to apply to SoC this year. But
> > even in case I fail I would be interested in the development.
> > Are you going to apply for SoC too / mentoring?
>
> I'm not going to apply for SoC.
>
> I'd be happy to informally mentor anyone developing software to
> process sensor and GPS data. I built up a little bit of experience
> with my KeypadMapper project, as well as porting Gosmore to Android.
>
> In the long term (i.e. not this year) it would be nice to detect logos
> (trademarks), perhaps do OCR or even photosynth type survey.
>
> But in the short term there is no image processing necessary. Simply
> show the user a crosshair. He can then take multiple "shots" of an
> object to collect it's height and location.
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