Re: Optical Inertia

From	Francois LE COAT <lecoat@atari.org>
Newsgroups	sci.image.processing
Subject	Re: Optical Inertia
Date	2024-03-28 16:15 +0100
Organization	To protect and to server
Message-ID	<uu41ht$3vfe2$1@paganini.bofh.team> (permalink)
References	<urndcu$588p$1@paganini.bofh.team>

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Hi,

The principle of dominant 2D motion appeared at INRIA, it is here:

<https://www.irisa.fr/vista/Themes/Logiciel/Motion-2D/Motion-2D.html>

In our case, the dominant motion estimated from the approximation of
optical-flow (DIS - Dense Inverse Search OpenCV) is 3D and projective.

Francois LE COAT writes:
> The experiment from Hernan Badino was redone. You can see it there...
> 
>      <https://www.youtube.com/watch?v=fqWdSfN9FiA> Source
> 
> The main interest is that video is looping, and the result is almost:
> 
>      <https://www.youtube.com/watch?v=0ZPJmnBh03M> Reworked
> 
> Well, Hernan Badino is moving his head when he is walking, so the
> reconstructed trajectory is not perfectly looping at the end. But
> we can reconstruct the movement almost perfectly. We use OpenCV
> for image processing, and POV-Ray for 3D representation. We have
> to determine projective dominant motion in the video with a
> reference image, and change it when correlation drops below 80%.
> 
> We have a 3D inertial model of motion, that's why POV-Ray helps =)

Best regards,

-- 
Dr. François LE COAT
CNRS - Paris - France
<https://hebergement.universite-paris-saclay.fr/lecoat>

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Optical Inertia Francois LE COAT <lecoat@atari.org> - 2024-02-28 14:45 +0100
  Re: Optical Inertia Francois LE COAT <lecoat@atari.org> - 2024-03-28 16:15 +0100
    Re: Optical Inertia Francois LE COAT <lecoat@atari.org> - 2024-04-03 18:45 +0200
      Re: Optical Inertia Francois LE COAT <lecoat@atari.org> - 2024-10-17 15:15 +0200
        Re: Optical Inertia Francois LE COAT <lecoat@atari.org> - 2024-10-29 19:00 +0100
          Re: Optical Inertia Francois LE COAT <lecoat@atari.org> - 2024-11-21 16:35 +0100
            Re: Optical Inertia Francois LE COAT <lecoat@atari.org> - 2025-02-24 16:30 +0100
              Re: Optical Inertia Francois LE COAT <lecoat@atari.org> - 2025-04-01 19:15 +0200
                Re: Optical Inertia Francois LE COAT <lecoat@atari.org> - 2025-05-15 15:00 +0200
                Re: Optical Inertia Francois LE COAT <lecoat@atari.org> - 2025-05-30 15:51 +0200
                Re: Optical Inertia Francois LE COAT <lecoat@atari.org> - 2025-06-18 15:15 +0200
                Re: Optical Inertia Francois LE COAT <lecoat@atari.org> - 2025-09-16 15:30 +0200
                Re: Optical Inertia Francois LE COAT <lecoat@archimedium.fr> - 2025-10-21 16:35 +0200
                Re: Optical Inertia Francois LE COAT <lecoat@archimedium.fr> - 2025-11-04 16:15 +0100
                Re: Optical Inertia Francois LE COAT <lecoat@archimedium.fr> - 2025-11-18 15:10 +0100
                Re: Optical Inertia Francois LE COAT <lecoat@archimedium.fr> - 2025-12-09 15:30 +0100
                Re: Optical Inertia Francois LE COAT <lecoat@archimedium.fr> - 2026-01-14 15:15 +0100
                Re: Optical Inertia Francois LE COAT <lecoat@archimedium.fr> - 2026-04-28 15:45 +0200

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