POV-Ray : Newsgroups : povray.advanced-users : Facebook 3D posts : Re: Facebook 3D posts Server Time
26 Apr 2024 19:06:24 EDT (-0400)
  Re: Facebook 3D posts  
From: Francois LE COAT
Date: 15 Aug 2021 10:45:55
Message: <611928a3$1@news.povray.org>
Hi,

>>> Bald Eagle writes:
>>>> Take for example Francois LE COAT's very interesting work:
>>>>
>>>> http://news.povray.org/povray.advanced-users/thread/%3Cweb.5bb77cec1
f36de80c437ac910%40news.povray.org%3E/ 
>>>>
>>>> Forgive me if there's a lot of things I don't understand, properly 
>>>> recall, or
>>>> have wrong, but it seems to me that an aerial photograph of a 
>>>> landscape has a
>>>> lot of perspective distortion, and part of the photogrammetry 
>>>> process would be
>>>> correcting for that.
>>>
>>> For the time being, I'm experimenting to model trajectories in 3D.
>>> But it is a difficult work, because public images given by the NASA
>>> are not of good quality. If the Ingenuity helicopter flying on Mars w
as
>>> driven with my trajectory modelling, it would have crashed. But it is

>>> what I'm measuring, with input data I could collect. This is strange!

>>> I have no other possibility than to improve my computations further o
n.
>>
>> For the 9th flight over Mars, I collected better images from the
>> surface. To understand what I'm computing, here is another work
>> from mine...
>>
>> (1) <https://twitter.com/Astro_Aure/status/1414699163569246210>
>>
>> You can see a cursor pointing at Ingenuity's localization, moving on
>> the map, following the helicopter's motion. What I would like to do, i
s
>> to compute this in space, with "translate <Tx, Ty, Tz>" in 3 dimension
s.
>>
>> (2) <https://www.youtube.com/watch?v=MT5SqhJ0Jio>
>>
>> I could also "rotate <Rx, Ry, Rz>" and "shear <Sx, Sy, 0>" but it is n
ot
>> working for the moment. And I rendered this with Persistence Of Vision
.
>> The algorithm I'm using is probably close to what is used on Mars,
>> because it is constructed to avoid the drift from the embedded IMU.
>> It's not viewed from the top (like (1)) but from the surface of Mars.
> 
> For 10th flight over Mars, Ingenuity followed an elaborate trajectory..
.
> 

> 
> NASA planned to take color pictures of remarkable points on ground.

I've been concerned by 11th flight over planet Mars yesterday August
14th, after Ingenuity helicopter happened August 4th...

	<https://www.youtube.com/watch?v=50fccs79W1A>

RAW separated images were released by the NASA at the location:

<https://mars.nasa.gov/mars2020/multimedia/raw-images/?af=HELI_NAV,HELI
_RTE#raw-images>



<https://twitter.com/RevesdEspace/status/1426147951693402114>

August 13th. I worked on this video. It takes a delay between the
day of the flight, and final result here. But this video comes
from a very distant location in space!

Best regards,

-- 

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


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