Temporal Disparity

From	Francois LE COAT <lecoat@atari.org>
Newsgroups	sci.image.processing
Subject	Temporal Disparity
Date	2021-01-14 18:15 +0100
Organization	Aioe.org NNTP Server
Message-ID	<rtpu7r$1cjt$1@gioia.aioe.org> (permalink)

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Hi,

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.

Happy New Year 2021.

Regards,

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

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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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