[OpenDroneMap-dev] (no subject)

[Cole]

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.  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.

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.

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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