Michael T. Jones (mtjones++at++ix.netcom.com)
Sun, 30 May 1999 22:57:19 -0700
(For those who don't know him, Dr. Eng Lim Goh is that rare person,
though less rare at SGI than most companies, the very clever Ph.D.
researcher disguised as a business/marketing/corporate executive. ;-)
Hello!
I believe that the fields with the most work in perception using
point displays is interactive chemical and crystallographic
visualization - where the study is of fields, potentials, lattices,
and so on. I remember seeing such work at UNC in 1981 in
projected 3D using the "mylar-sheet-stretched-over-a-woofer"
display device they had at the time.
Michael
----------
Michael T. Jones - <mailto:mtj++at++intrinsic.com>mtj++at++intrinsic.com - <http://www.intrinsic.com/>Intrinsic Graphics Inc. - (408) 507-8160
A frog in a well says "The sky is as big as the mouth of my well"
At 07:04 AM 5/31/99 +0800, englim wrote:
Hi Michael,
> Michael T. Jones wrote ...
> (... trimmed ...)
>
>It seems that you are not satisfied with converting the points
into
>a pfGeoSet and drawing that, but if you did, and you move the
>resulting point-surface interactively, you will be able to see
and
>understand the data. The human mind is quite amazing when
>interpreting moving correlated images...
Yes, with such a powerful feature in our Visual Perception system,
I had wondered whether there were studies made about it. And
as such, whether attempts were made at giving this feature a name.
The closest I came to, was the name 3D-SFM (3D-Structures
>From Motion). In "The Vision of the Brain" by
Semir Zeki, a simple
but compelling experiment describing this feature was included.
What initially seemed to be a 2D-disc, full of red dots over a
green
background, is suddenly perceived as a 3D-globe, when the dots
were moved coherently in a certain way (rotated).
More compelling when demo'ed, was that the 3D globe (structure)
is perceivable only if the red & green colors are of different
luminances. When they were made to be of equal luminance, the
globe is no longer perceivable.
Something to note when building effective real-time visual systems?
Cheers,
Eng Lim Goh
SGI
(For those who don't know him, Dr. Eng Lim Goh is that rare person,
though less rare at SGI than most companies, the very clever Ph.D.
researcher disguised as a business/marketing/corporate executive.
;-)
Hello!
I believe that the fields with the most work in perception using
point displays is interactive chemical and crystallographic
visualization - where the study is of fields, potentials, lattices,
and so on. I remember seeing such work at UNC in 1981 in
projected 3D using the
"mylar-sheet-stretched-over-a-woofer"
display device they had at the time.
Michael
This archive was generated by hypermail 2.0b2 on Sun May 30 1999 - 22:55:54 PDT