POV-Ray : Newsgroups : povray.macintosh : [Q] POV-Ray in command line : Re: [Q] POV-Ray in command line Server Time
19 Jun 2021 20:36:56 EDT (-0400)
  Re: [Q] POV-Ray in command line  
From: Francois LE COAT
Date: 30 May 2021 11:00:01
Message: <60b3a871$1@news.povray.org>
Hi,

>> Bald Eagle writes:
>>> Francois LE COAT wrote:
>>>> I've completed the WEB page I mentioned. This image processing is
>>>> applied to a drone flying in Vosges a few days ago. I was thinking 
>>>> about
>>>> to apply the same computations with the flight of Ingenuity on Mars.
..
>>>>
>>>> <https://en.wikipedia.org/wiki/Mars_Helicopter_Ingenuity>
>>>
>>> Nice.
>>> I modeled a drone propeller like that ... 7 years ago?
>>>
>>> <http://news.povray.org/povray.binaries.images/attachment/%3Cweb.53dd
26749e0d00ba5e7df57c0%40news.povray.org%3E/propeller2_dragonfly.png?ttop=
432863&toff=950> 
>>>
>>
>> Great =)
>>
>> The goal is modelling the trajectory and the visible relief with a
>> simple video, using the images from Ingenuity's camera, like in :
>>
>> <https://hebergement.universite-paris-saclay.fr/lecoat/demoweb/tempora
l_disparity.html> 
>>
>>
>> the video is <https://www.youtube.com/watch?v=MzWu7zwdJSk> Do you
>> remember that we talked about translate <Tx,Ty,Tz>, rotate
>> <Rx,Ry,Rz> and shear (or skew) angles <Sx,Sy,0> for the camera ?
>> Then we can deduce the trajectory, and the monocular depth.
>>
>> You'll see what it gives on Mars, if you haven't seen it in a
>> forest, with a drone, in winter ... This is spectacular :-)
> 
> I recently worked a little further on the trajectory of the drone...
> 

> 
> Instead of using uniquely Ry (yaw) and Tz (translation), I also used
> Tx (translation) and Rz (roll) to reconstruct the trajectory. I couldn'
t
> use Ty (translation) and Rx (pitch) because it is not looking like a
> valid camera displacement. I have no real explanation.
> 
> But the aspect of the drone's trajectory is looking better ...

I worked on the sixth flight of the "Ingenuity" helicopter on Mars...

	<https://www.youtube.com/watch?v=pKUAsuXF6EA>

Unfortunately, there was an incident with the dated flight information
and the video sources from the NASA aren't so good for processing :-(
I wish we will have a color video, from the second embedded camera :-)

Thanks for your help.

Best regards,

-- 

<http://eureka.atari.org/>


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