[OpenDroneMap-dev] (no subject)

[Stephen Mather]

Ha! Great conversation.

The one thing that is happening on the web side of things is a quick and
dirty drupal instance a colleague of mine is working on that will take
uploads, queue the processing, and e-mail a download link when complete.
It's a not-too-fancy solution we will be using in-house, but nothing as
deep as what you two are discussing.

Definitely interested in a QGIS toolbox too.

Best,
Steve



On Thu, Mar 5, 2015 at 3:13 AM, Alex Mandel <tech_dev at wildintellect.com>
wrote:

> On 03/04/2015 11:51 PM, Cole wrote:
> > 1.  It was in reference to the idea of replacing the perl script with
> > python.  I think using a web framework to such as cherrypy or flask to do
> > so would be logical so we would not have to worry about any platform
> > specific sys calls.  I am not talking about running an external website,
> it
> > would be a local service with a web interface.  Having a HTML5 interface
> > would also open up the project to non-devs for use and allow integration
> > with visualization tools such as cesium/open layers.
>
> So you're implying something like a ctypes wrapper around the C parts to
> avoid sys calls (which would still exist otherwise even with python)?
> I have also heard Flask is good ( I have more experience with Django but
> that's overkill for this).
>
> Yes HTML5 would make an interface easier to manage, especially for
> people who want to run it remotely on amazon instances.
>
> To note, by
> > background is in computer vision and autonomous systems, so while
> building
> > the framework should be straight-forward some of the mapping and fancy
> web
> > stuff is out of my realm of comfort.  There is quite a bit of talent in
> the
> > GIS community that could probably help fill in for my weaker areas.
> >
> Ya don't worry about that part, we do have that covered. I've already
> been pondering how to link this into QGIS as a toolbox.
>
> > 2.  I have to do some camera calibration for another non-commercial
> project
> > I am working on that involves matching frames using SIFT points.  I'll
> > package my work and make it suitable for inclusion in this project.  I
> use
> > openCV, which is BSD.
> >
>
> Sounds great,
> Alex
>
> > On Thu, Mar 5, 2015 at 1:25 AM, Alex Mandel <tech_dev at wildintellect.com>
> > wrote:
> >
> >> On 03/04/2015 09:03 PM, Cole wrote:
> >>> All,
> >>>
> >>> I was very impressed with Steve's presentation at NCGIS.  I have been
> >>> looking for an open source project that is new, and interests me.  This
> >>> looks like the perfect match.
> >>>
> >>> I have not done much web development and would like to get some
> >>> experience.  A python micro web framework such as Flask might seem
> like a
> >>> good way to go when doing the port.  Let me know your thoughts and
> II'll
> >>> get a something started over the next few weeks.
> >>>
> >>
> >> Did I miss a discussion about building a website? Or was this in
> >> reference to the idea replace the main scripts with something more
> >> people are comfortable editing?
> >>
> >>> With python, it should be fairly trivial to directly call the C
> libraries
> >>> for easier cross-platform support.
> >>>
> >> +1
> >>
> >>> I also noticed that people are having issues with camera calibration.
> I
> >>> have gone through this with some of my computer vision problems.
> OpenCV
> >>> includes a library that will give a transform based upon a picture of a
> >>> checkerboard.  My first order of business will be to through together a
> >>> python script to correct images.  I do not know how this will affect
> the
> >>> rest of the toolchain.
> >>>
> >>
> >> I already have such a script (
> >> https://github.com/wildintellect/lenscorrection ), though it's specific
> >> to the GoPro, technically any camera/lens in lensfun should be
> >> compatible. The issue I have is after you correct images, what is the
> >> new effective camera parameters that opendronemap needs. I was planning
> >> to measure this from some rulers taped to the wall, but I like your idea
> >> of using a checkerboard.
> >>
> >> I suppose you are talking about calibration in general, the lensfun
> >> project has that covered pretty well but your are right a script to come
> >> up with the camera parameters from a checkerboard would be a good tool.
> >>
> >>> Let me know if anyone is working on these issues already, and if this
> is
> >>> the direction that the rest of you want to go, and any hang-ups you may
> >>> foresee.
> >>>
> >>> -cole
> >>>
> >>>
> >> Thanks,
> >> Alex
> >>
> >
>
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