Re: Temporal Disparity

From	Francois LE COAT <lecoat@atari.org>
Newsgroups	sci.image.processing
Subject	Re: Temporal Disparity
Date	2021-02-18 17:30 +0100
Organization	Aioe.org NNTP Server
Message-ID	<s0m4mj$6g9$1@gioia.aioe.org> (permalink)
References	<rtpu7r$1cjt$1@gioia.aioe.org> <rvc1o1$133o$1@gioia.aioe.org>

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Hi,

Francois LE COAT writes:
>> I recently found that you can compute a "temporal disparity" from two
>> successive images. With an image sequence, performing the perspective
>> registration of the sequence, you can obtain a disparity measure. That
>> means depth with only one camera, though disparity is usually measured
>> by binocular vision. This appears in the following demonstration...
>>
>>      <https://www.youtube.com/watch?v=nvfHlw3gHS0>
>>
>> A drone is flying between a forest of trees in the French Vosges. Thanks
>> to the optical-flow measured on successive images, the "temporal
>> disparity" reveals the forest of trees... You take a reference image,
>> and the optical-flow is obtained on two rectified images, then the
>> reference is changed when inter-correlation drops below 60%. You can
>> perceive the relief in depth with a unique camera, over time.
> 
> To explain what I'm doing I've done a WEB page that is not yet finished:
> 
> <https://hebergement.universite-paris-saclay.fr/lecoat/demoweb/temporal_disparity.html> 

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>

The autonomous drone is landing today, and we'll have video sequences =)

Regards,

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

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Thread

Temporal Disparity Francois LE COAT <lecoat@atari.org> - 2021-01-14 18:15 +0100
  Re: Temporal Disparity Francois LE COAT <lecoat@atari.org> - 2021-01-22 20:00 +0100
  Re: Temporal Disparity Francois LE COAT <lecoat@atari.org> - 2021-02-02 18:22 +0100
    Re: Temporal Disparity Francois LE COAT <lecoat@atari.org> - 2021-02-18 17:30 +0100
      Re: Ingenuity's video (was: Temporal Disparity) Francois LE COAT <lecoat@atari.org> - 2021-04-21 15:15 +0200
        Re: Ingenuity's video Francois LE COAT <lecoat@atari.org> - 2021-04-22 18:15 +0200
          Re: Ingenuity's video Francois LE COAT <lecoat@atari.org> - 2021-04-26 16:35 +0200
            Re: Ingenuity's video Francois LE COAT <lecoat@atari.org> - 2021-05-05 15:15 +0200
              Re: Ingenuity's video Francois LE COAT <lecoat@atari.org> - 2021-05-15 19:19 +0200
                Re: Ingenuity's video Francois LE COAT <lecoat@atari.org> - 2021-05-20 17:30 +0200
                Re: Ingenuity's video Francois LE COAT <lecoat@atari.org> - 2021-05-28 15:16 +0200
                Re: Ingenuity's video Francois LE COAT <lecoat@atari.org> - 2021-06-27 12:00 +0200
                Re: Ingenuity's video Francois LE COAT <lecoat@atari.org> - 2021-07-31 17:05 +0200
                Re: Ingenuity's video Francois LE COAT <lecoat@atari.org> - 2021-08-15 17:00 +0200
                Re: Ingenuity's video Francois LE COAT <lecoat@atari.org> - 2021-11-05 18:45 +0100
    Re: Temporal Disparity Francois LE COAT <lecoat@atari.org> - 2021-03-16 17:00 +0100
  Re: Temporal Disparity Francois LE COAT <lecoat@atari.org> - 2024-01-15 19:50 +0100

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