[Bf-committers] GSoC 2016: Finish multi-camera reconstruction

[Matthias Fauconneau]

Hi Sergey, Ton,

I see your point that there is not enough UI work this time to be a
separate enough project.

Finishing multi camera reconstruction is a good fit for GSoC.

The two lens ideas seem too related to be separate:
I think variable focal length / implicit distortion estimation is
adding the lens parameters to the set of variables in the Ceres
resolution.
Explicit lens distortion estimation with a calibration grid is already
done in backend and only needs to be hooked up.
Even both together might not be enough.

I am not sure how the interest in Blender VFX is these days, maybe
there are some other features users are looking forward too.

Regards,
Matthias

On Wed, Mar 2, 2016 at 3:49 PM, Ton Roosendaal <ton at blender.org> wrote:
> Hi,
>
> FYI: Google FAQ explicitly states that students should work individually on their own project.
>
> https://developers.google.com/open-source/gsoc/faq
>
> -Ton-
>
> --------------------------------------------------------
> Ton Roosendaal  -  ton at blender.org   -   www.blender.org
> Chairman Blender Foundation - Producer Blender Institute
> Entrepotdok 57A  -  1018AD Amsterdam  -  The Netherlands
>
>
>
>> On 2 Mar, 2016, at 14:58, Sergey Sharybin <sergey.vfx at gmail.com> wrote:
>>
>> Hi,
>>
>> Answers are inlined.
>>
>> On Wed, Mar 2, 2016 at 6:40 PM, Matthias Fauconneau <
>> matthias.fauconneau at gmail.com> wrote:
>>
>>> Hi Sergey,
>>>
>>> I was thinking of participating to GSoC again this year.
>>>
>>
>> That's good!
>>
>>
>>> If we could allocate two slots on motion tracking, we could do an UI
>>> / backend cooperation like I did with you in 2011.
>>>
>>
>> Guess you're talking about collaborating with Tianwei Shen on this project?
>> Then it's a bit tricky to separate scopes too much at the current state.
>> Additionally, i don't see just working on interface for a new tools is a
>> sufficient GSoC project. It's not _that_ much work in UI to be done anyway.
>>
>>
>>> This would allow us to expand the scope of the project to make
>>> sure Blender meets users requirements for VFX.
>>> The other two smaller projects could be folded in since:
>>> - Variable camera lens focal length support should be a matter
>>> of integrating the additional parameter in the resolution.
>>>
>>
>> That is indeed a nice project.
>>
>>
>>> - Lens distortion estimation and grid calibration backend was done in 2011
>>> and is mostly frontend work at this point.
>>>
>>
>> It's not just a frontend work. The project was just a hook to OpenCV, which
>> is not acceptable for Blender's upstream. Additionally, we now can do
>> much-much better job on estimation/calibration using Ceres.
>>
>> --
>> With best regards, Sergey Sharybin
>> _______________________________________________
>> Bf-committers mailing list
>> Bf-committers at blender.org
>> http://lists.blender.org/mailman/listinfo/bf-committers
>
> _______________________________________________
> Bf-committers mailing list
> Bf-committers at blender.org
> http://lists.blender.org/mailman/listinfo/bf-committers