Stereo-image fusing to spot differences

From: Matson, Robert (ROBERT.D.MATSON@saic.com)
Date: Sat Jun 15 2002 - 16:12:37 EDT


Hi Tom,

> Concerning the relative movement of these satellites with
> respect to each other, I can see that between the images
> taken at 01:14 and 01:17 UTC there has been relative
> movement between not just two but probably all of the
> satellites.
> I used a very sensitive technique to determine whether
> something has changed between two images. I tried it
> on some of your pictures and it worked.
> What I did was this, I tilted my head to one side and
> "stereofused" the 01:14 and 01:17 UTC images (that
> happen to be one above the other). [By stereofuse I
> mean that I looked directly at one picture with my
> right eye and directly at the other picture with my
> left eye, both eyes in focus.]

This is exactly the technique I've used for years to look
for comets in SOHO LASCO imagery.  Works very well.  Alas,
only a small fraction of the population is able to do this
without optical aid -- this is the same "skill" required
to see those "Magic Eye" posters that were popular several
years back... --Rob

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