HDTenEightyP/NetNews huggingface dataset:
From: sngattan@matt.ksu.ksu.edu (Sanjay N Gattani)
Newsgroups: sci.image.processing
Subject: Image grouping?
Date: 21 Aug 1992 00:37:43 -0500
Organization: Kansas State University
Distribution: world
NNTP-Posting-Host: matt.ksu.ksu.edu

Hello Netters:

	In a project that I am working on, I need to break a particular
area into 4 images. After image enhancements and feature extraction, I need
to join these four images together and get a hard copy of the final image.
Another problem is that these images will have overlapping areas and so,
anm algorithm will have to be written in order to join them correctly.
Can anyone suggest how I can do it and which software is better equipped
to do this job.  I need something for an IBM PC compatible.  Thanks.

						sanjay
						sngattan@matt.ksu.ksu.edu

Newsgroups: sci.image.processing,comp.compression
From: venky@jayhawk.asd.sgi.com (Venkatesh Narayanan)
Subject: JPEG-in-TIFF
Organization: Silicon Graphics, Inc.
Date: Fri, 21 Aug 1992 18:33:02 GMT

Need some info, help, source code on how to modify the free jpeg software
to read, write the (JPEG-in-)TIFF image format. Also where can I find some 
(JPEG-in-)TIFF sample images ?
If this is not the appropriate newsgroup for this question, are there any
jpeg or image format related newsgroups where I can post it.

-- 
---
Venkatesh Narayanan	    Silicon Graphics, Inc.		    
VMD/Image Processing    (415) 390-5314	venky@jayhawk.asd.sgi.com
From: stefang@isy.liu.se (Stefan Gustavson)
Newsgroups: sci.image.processing
Subject: Re: image processing loops: a c programming question
Date: 19 Aug 92 12:03:58 GMT
Distribution: sci.image.processing
Organization: Dept of EE, University of Linkoping

ben@ph.tn.tudelft.nl (Ben Verwer) writes:

[...]
>As for the author who proposed the function call in the innerloop: you must 
>drink lots of coffee at work :)
[...]

Ahem. It was me, and if I may say so, I resent your cheap blow.
I drink a lot of coffee at work, but not for the reason you imply.
If you call sizeof() a function call, you can't really be a very
experienced programmer. sizeof() evaluates at compile time to a
constant. And I was really only making a joke. Remember?
Did my last posting get lost before you saw it? I _have_ tried my
examples too, you know.

I recently wrote a convolution routine with only pointer indirection
and addition for addressing and no sissy extra loop increment variables.
Incomprehensible but fast. It _does_ make a difference.
No hard feelings - just getting things straight.

    /Stefan Gustavson (stefang@isy.liu.se)
Newsgroups: sci.image.processing
From: brabec@pysgjb.physics.ncsu.edu (Charles Brabec)
Subject: Followup to How many Graphics Gems?
Organization: NCSU Physics, Condensed Matter Theory
Date: Thu, 20 Aug 1992 15:21:33 GMT

Thanks to everyone who replied to my post of a month ago 
regarding how many Graphics Gems books there are.

There are at least three of them, the most recent was just published
(I'm told it was released at SIGGRAPH) For anyone who wants to order them,
here's the relevant info:

The publisher is:
		Academic Press, Inc.
		1250 Sixth Ave.
		San Diego, CA 92101-4311

	UK:	Academic Press Limited
		24-28 Oval Road
		London NW1 7DX

The first book is:
		Graphics Gems
		edited by Andrew S. Glassner
		ISBN 0-12-286165-5

The second book is:
		Graphics Gems II
		edited by James Avro
		ISBN 0-12-064480-0

The third book is:
		Graphics Gems III
		edited by David Kirk
		ISBN 0-12-409670-0 (with IBM disk, 5-1/4")
		ISBN 0-12-409671-9 (with Mac disk)
		(The disk included with GG3 contains all the C source
		 from GG1, GG2, and GG3)

I paid about $50 each for them from my local campus bookstore. 

The C-source is also available via anonymous-FTP from princeton.edu
directory:	/pub/Graphics/GraphicsGems

Thanks again to everyone who helped me out.

Charles
-- 
--------------------------------------------------------------
Charles Brabec 					304 Cox Hall
brabec@pysgjb.physics.ncsu.edu			(919) 515-7228
Newsgroups: sci.image.processing
From: thomsen@spf.trw.com (Mark Thomsen)
Subject: Re: "Consumer" Image Processing
Organization: TRW Inc., Redondo Beach, CA
Date: Wed, 19 Aug 92 01:07:17 GMT

Stan Reeves writes
> 
> I would like to collect some evidence that image processing is moving more
> and more into the mainstream of consumer electronics.  More specifically,
> I am trying to find information that would motivate a greater emphasis on
> teaching image processing to undergraduates in electrical engineering (if,
> indeed, this is justified).

A timely question. Today we entertained senior engineers from the
Sony group that does the broadcast equipment. (The group does
billions of dollars of business annually - reason #1). One engineer
started discussing image compression techniques with a U.S. scientist
and it was clear that the scientist did not have the full background
to understand tradeoffs in algorithms. I would expect the average
EE to not have the (thorough) background. (Increasing emphasis on
image compression in many aspects of media - reason #2). We are
helping Sony look into non-video applications of new hardware, in
areas of medical imaging, remote sensing, and so on. (Image processing
is estimated to become a $10B business, in all of it's diversity -
reason #3).

Image processing should be a logical follow-on to a solid course on
signal processing. Information theory, transform theory, filter
theory, and such help form the basis for a lot of modern digital
image processing. Add in some geometric techniques, a bit more on
spectral theory, and a few sound application experiments and the
modern EE is ready to get started.
Newsgroups: sci.image.processing
From: smr@csuvax1.csu.murdoch.edu.au (smrr)
Subject: Re: Seeking info on image recognition
Organization: Murdoch University
Distribution: na
Date: Fri, 14 Aug 92 17:27:36 GMT

alex@coos.dartmouth.edu (Alex Hartov) writes:
>Could anybody give me some refs or pointers on software that may be available
>to recognize faces.  If such software dosen't exist to your knowledge, maybe
>you know of papers on the topic.  Image processing is not my specialty and I'm
>not up on the literature.
>Alex Hartov
>alex@coos.dartmouth.edu

I am also interested in  face recognition. Does anybody know if this has been
done?. Techniques, ... etc?

Thanks

shri
smr@alpha.cs.murdoch.edu.au
From: tjc@ecs.soton.ac.uk (Tim Chown)
Newsgroups: sci.image.processing
Subject: Temporal "segmentation" of image sequences?
Date: 12 Aug 92 16:25:40 GMT

As part of a multimedia project here at Southampton, I'd be interested
in looking into the problem of temporal segmentation of image sequences.  
By which I mean that given a video sequence, I would like to be able
to label scene and viewpoint changes (fairly) automatically.

I would be interetsed in any references to similar work, but my
initial thoughts would be along the lines of understanding what
constitutes a significant change, and how video sequences are
constructed.  

From a bottom-up viewpoint, we could categorize the principal types of 
sequences:

  static camera 	: the camera position remains fixed, objects may
		     	  move freely within the field of view.

  zooming camera  	: as above, but the camera may zoom in or out,
			  probably centered on an object.

  panning camera	: the camera pans such that most image information
			  passes in one direction, once again probably
			  while one subject is targetted.

  pan and zoom		: combination of the above two.

  new viewpoint		: there is a change in camera/viewpoint, which
			  may be a view of the same scene, or of
			  something completely different.

Clearly, one approach could involve some sort of optical flow detection,
perhaps combined with just some simple image differenceing.
However, whatever the method for performing categorization along the
lines of the above, there is also a need for some understanding of
the way clips fit together between and within viewpoints.  

Top-down, a video may have stories/programmes constructed of "acts"
in which there are "scenes" in which there may be changes in viewpoint;
at the lowest level is the single camera view, which (as above) may
be static or pan/zoom.

Note that the tracking of objects within scenes is a problem we are
addressing separately (reasonably successfully) but I think the ability
to recognise changes in scene, and perhaps in particular revisiting 
previous scenes (viewpoints) could be very useful.  Perhaps either
"skill" could help guide the other.

In some "contrived" situations, you may have knowledge to hand of the
nature of the scenes, such as with a newscast or a sporting event.
In such cases rules can be expressed that define how viewpoints
may relate to each other.  In the more general case, it would be of
interest to (say) be able to "segment" a sequence of two people
having a conversation, where perhaps the camera switches between
each person.

Anyway, it's a topic I haven't seen much on in any literature.  It was
mentioned briefly to me by a visiting researcher from Michigan, with
whom I will discuss it further, but I'd be interested in any general 
feedback ...

Cheers,
	Tim
Newsgroups: sci.image.processing,comp.graphics,sci.med,sci.med.physics
From: carl@aoa.aoa.utc.com (Carl Witthoft)
Subject: Re: Please Tell Me About Highspeed Digital Camera
Organization: Adaptive Optics Associates
Date: Mon, 17 Aug 1992 16:39:40 GMT

In article <1992Aug14.221309.4092@ttinews.tti.com> hollombe@polymath.tti.com (The Polymath) writes:
>In article <NK4V.92Aug11225334@poe.acc.virginia.edu> koshiya@virginia.edu writes:
>}I heard recently that there exists highspeed digital camera which can
>}capture 2k frame/s.  Is it true?  Please post any info on it.
>}Info on articles would be appreciated, too.
>
>Check with the industrial divisions of the major Japanese manufacturers.
>I recall many of the systems were based on their CCD's.
x
At the risk of sounding like a salesman :=), I'd like to point
out that there are US manufacturers, of  which my company is one.
Our stuff is jointly produced w/ EGG-Reticon.  Call for tech. info;
I don't do sales myself.

-- 
Bobby Newmark, aka  Carl Witthoft @ Adaptive Optics Associates
aoa!carl@bbn.com  carl@aoa.utc.com
54 CambridgePark Drive, Cambridge,MA 02140 617-864-0201
**Just say NO to HMOs**
Newsgroups: sci.image.processing
From: tex@ipf.bau-verm.uni-karlsruhe.de (Stefan Tex Tel 0721 608 2316)
Subject: Vector-to-Raster Conversion
Keywords: vector, raster, polygon
Reply-To: tex@ipf.bau-verm.uni-karlsruhe.de
Organization: IPF, University of Karlsruhe
Distribution: sci
Date: Thu, 13 Aug 1992 07:46:05 GMT

Hello !!

I'm looking for a PD program, which converts a non-convex polygon 
into its raster equivalent. Of course this is a standard problem, 
but before I take pain over that program I ask "sci.image.processing",
if anybody has programmed it.

Thanks a lot

Stefan Tex

---

********************** Brain fault (core dumped) **********************
       |^^^^^^|        __________________________________
       |      |       /                                  \
       |      |      | Stefan Tex                         |
       | (o)(o)      | IPF-University of Karlsruhe        |
      @      _)      | Englerstr. 7, D-7500 Karlsruhe     |
       | ,___|     ,,| Phone: +49 721 608 4131            |
       |   /   ..''  | Fax:   +49 721 694 568             |
      /____\         | Internet:                          |
                     |  tex@ipf.bau-verm.uni-karlsruhe.de |
                     |                                    |
                      \__________________________________/

Newsgroups: sci.image.processing
From: dbriggs@zia.aoc.nrao.edu (Daniel Briggs)
Subject: Re: FFT's. Help with Region Segmentation
Organization: National Radio Astronomy Observatory, Socorro NM
Date: Thu, 13 Aug 92 18:05:39 GMT

On the subject of "what is the phase in the Fourier Transform and what does
it mean?", allow me to recommend.  "The Importance of Phase in Signals",
Oppenheim & Lim, Proceedings of the IEEE, vol 69, No 5, p.529-541 (1981)
Very tasty stuff.

-- 
| Daniel Briggs  (dbriggs@nrao.edu)                      |        USPA B-14993
| New Mexico Tech / National Radio Astronomy Observatory |            DoD #387
| P.O. Box O / Socorro, NM 87801   (505) 835-7391        |
Support the League for Programming Freedom  (info from league@prep.ai.mit.edu)
Newsgroups: sci.image.processing
From: demillo@juliet.ll.mit.edu ( Robert DeMillo )
Subject: Re: SPLAT
Organization: M.I.T. Lincoln Lab - Group 43
Date: 19 Aug 92 09:56:54

> In article <2A8953B3.6635@deneva.sdd.trw.com> thomsen@spf.trw.com (Mark Thomsen) writes:

> Bryan Morse writes
> > ..."Splat" explaination given as a snowball analogy....

> This can work provided that the "size of the snowball" is correct for
> the output grid. If the output grid is sparse relative to the input grid
> then it should work fine with lots of small snowballs - small intensities
> and small area (suggest adding based on original intensities and then
> normalizing/scaling values). If the output grid is dense relative to the
> input grid then the snowballs should have large area (to ensure every
> output grid point is covered) and large intensities (one snowball
> "splats" many grid points).

Actually, the "Splat" algorithm incorporates a user definable "error"
factor, that eliminates this problem.

> I would be most interested in seeing an algorithm statement, either in
> a posting or by reference to a paper (or book?).

The canonical reference paper is:

"Heirarchical Splatting: A Progressive Refinement Algorithm for Volume Rendering"
	Larr, D. and P. Hanrahan
	ACM Computer Graphics,
	Volume 25, Number 4
	pp 285-288

> Mark R. Thomsen

Have fun.


--


 - Rob DeMillo			| Internet: 	  demillo@juliet.ll.mit.edu
   MIT Lincoln Lab 		| America Online: exgalileo@aol.com
   Weather Sensing - Group 43	| Reality:        617-981-2105 (office)

"Operation Goofy now in effect!"
	--- Tom Servo, "Gamera vs. Gaos," Mystery Science Theater 3000
From: alien@essex.ac.uk ("Adrian F Clark")
Newsgroups: sci.image.processing
Subject: Re: image processing loops: a c programming question
Date: 13 Aug 92 11:05:23 GMT
Distribution: sci.image.processing
Organization: University of Essex, UK
In-reply-to: alberto@cfa.harvard.edu's message of 10 Aug 92 22:12:47 GMT


In article <1992Aug10.221247.8016@cfa.harvard.edu> alberto@cfa.harvard.edu (Alberto Accomazzi) writes:

> A far as making the loop tight and fast, if you are only accessing your data
> in a sequential way, the best thing to do is increment the pointer as in:
> 
> function (DATATYPE *data, int xsize, int ysize)
> {
>   int x, y;
>   DATATYPE *dp;
> 
>   dp = data;
>   for (y = 0; y < ysize; y++)
>     for (x = 0; x < xsize; x++, dp++)
>       *dp = ...
> }
> 
> Inner loops can be written in a similar fashion.  As far as I know, this
> will be as fast as you can get.

Actually, you can get just a smidgin faster on most machines:

  dp = data;
  for (y = 0; y < ysize; y++)
    for (x = 0; x < xsize; x++)
      *dp++ = ...
}

but this is probably even less readable than the other examples
posted.


--
 Dr Adrian F. Clark                                   JANET: alien@uk.ac.essex
 INTERNET: alien%uk.ac.essex@nsfnet-relay.ac.uk          FAX: (+44) 206-872900
 BITNET: alien%uk.ac.essex@ac.uk              PHONE: (+44) 206-872432 (direct)
 Dept ESE, University of Essex, Wivenhoe Park, Colchester, Essex, C04 3SQ, UK.
From: karin@ruccs.rutgers.edu (Karin Stromswold)
Newsgroups: sci.cognitive
Subject: Re: Cognitive Science Programs?
Date: 22 Aug 92 23:27:59 GMT
Organization: Rutgers Univ., New Brunswick, N.J.

kettler@mimsy.umd.edu (Brian Kettler) writes:


>(I'm posting this for a friend.  Please email your responses to me and
>I'll post a summary later.)

>What schools out there have programs in cognitive science - either a
>specific dept. or an interdisciplinary program involving several depts.?

>Any info as to the nature of the program and/or a contact person would
>also be appreciated.

>Thanks,
>Brian

Rutgers University at New Brunswick has a program in cognitive science.

Contact:

Zenon Pylyshyn or Charles Schmidt
RUCCS - Rutgers University Center for Cognitive Science
Rutgers University
Busch Campus
New Brunswick, NJ 08903

908-932-0635


Karin Stromswold  (karin@ruccs.rutgers.edu)
Newsgroups: sci.cognitive
From: rpoldrac@s.psych.uiuc.edu (Russ Poldrack)
Subject: Re: selective attention
Organization: UIUC Department of Psychology
Date: Mon, 17 Aug 1992 23:26:55 GMT

rosauer@fzi.de (Bernd Rosauer) writes:

>Is there a good introductory/review/survey paper on selective attention?

>--Bernd

The chapter by Alan Allport in the book Foundations of Cognitive
Science  (edited by Mike Posner) is pretty good, as well as the paper
by Johnston & Dark in the 1986 Annual Review of Psychology.

Russ
rpoldrac@psych.uiuc.edu
Newsgroups: sci.cognitive
From: rosauer@fzi.de (Bernd Rosauer)
Subject: selective attention
Organization: FZI Forschungszentrum Informatik, Karlsruhe, Germany
Date: Mon, 17 Aug 1992 17:54:26 GMT

Is there a good introductory/review/survey paper on selective attention?

--Bernd
From: grtant01@uctvax.uct.ac.za
Newsgroups: sci.cognitive
Subject: Natural language machine translation
Date: 14 Aug 92 10:11:54 GMT
Organization: University of Cape Town

I'm interested in the development of the technology of machine translation of
natural language. In
particular, what was the interaction between the development of linguistic
theories describing language and the development of processor capacity? When
did either area present barriers to the development of viable translation
systems, and what are the barriers facing machine translation currently? Please
reply to me personally. Thanks! Anton Grutter.
 
Xref: sparky sci.cognitive:332 alt.self-improve:552
Newsgroups: sci.cognitive,alt.self-improve
Subject: NLP - what exactly is it?
From: greg@ccc.govt.nz (Greg West)
Date: 14 Aug 92 13:41:04 NZDT
Organization: Christchurch City Council, New Zealand.

Hello there

I keep hearing about neurolinguistic programming.
What exactly is it and what is it used for?
 
+-----------------------------------------------------------------------+
| Greg West              "Sometimes a cigar is just a cigar"   S. Freud |
+-------------------------> greg@ccc.govt.nz <--------------------------+
From: sr0o+@andrew.cmu.edu (Steven Ritter)
Newsgroups: sci.cognitive
Subject: Re: NLP - what exactly is it?
Date: 18 Aug 92 18:22:34 GMT
	<MURPHYG.92Aug18081611@murphyg.Software.Mitel.COM>
Organization: Doctoral student, Psychology, Carnegie Mellon, Pittsburgh, PA

>The good news is neurolinguistic programming is also closely allied with
>computational linguistics!  I will grep my library for the exact string
>"Natural Language Processing" and look into what they are doing --- from
>this and the previous posting, I rather suspect the two NLP's may have a
>lot to say to each other.  It may even lead to an ELIZA program that
>simulates talking to Bandler ;-)

Well, the only relation I know between neurolinguistic programming and
cognitive science is that NLP was reseached by a committee of
psychologists on the National Research Council. They looked at at NLP as
well as other "techniques for enhancing human performance." The study
was funded by the Army, which wanted to see if it could speed up
training of recruits. With respect to NLP, the committee concluded that
"little if any evidence exists to support NLP's assumptions or to
indicate that it is effective as a strategy for social influence." It
also looked into NLP as a means of modelling expert performance, but
found only one study investigating it (and they weren't impressed with
it). They recommend more research into expert modelling (but not
necessarily with NLP techniques).

There's a good summary of the NRC report in Swets and Bjork, "Enhancing
human performance: An evaluation of 'New Age' techniques considered by
the U.S. Army," Psychological Science, 1, 85-96. The article contains
lots of interesting background about the army's interest in stuff like
parapsychology. The full NRC report is Druckman and Swets (1988)
Enhancing human performance: Issues, theories and techniques, DC:
National Academy Press.

Steve
Newsgroups: sci.cognitive
From: spesau@acs.ucalgary.ca (Shane P Esau)
Subject: Re: selective attention
Date: Tue, 18 Aug 92 20:12:10 GMT
Organization: The University of Calgary, Alberta

In article <Bt5IGx.H08@news.cso.uiuc.edu> rpoldrac@s.psych.uiuc.edu (Russ Poldrack) writes:
>rosauer@fzi.de (Bernd Rosauer) writes:
>
>>Is there a good introductory/review/survey paper on selective attention?
>
>>--Bernd
>
>The chapter by Alan Allport in the book Foundations of Cognitive
>Science  (edited by Mike Posner) is pretty good, as well as the paper
>by Johnston & Dark in the 1986 Annual Review of Psychology.
Is this Veronica Dark????

>
>Russ
>rpoldrac@psych.uiuc.edu

Shane Esau
spesau@acs.ucalgary.ca

Newsgroups: sci.cognitive
From: yost@adobe.COM (David Yost)
Subject: The XYZ University Cognitive Science Letter, $24/year
Reply-To: yost@adobe.COM
Organization: Adobe Systems Incorporated
Date: Fri, 14 Aug 1992 16:34:48 GMT

Ever see The Berkeley Wellness Letter or The Harvard Health Letter?
These are crisp little 8-page monthly newsletters that present material
from the field which is of practical use to ordinary people, i.e. not
necessarily in the profession.

That's what I would like to see, or something like it, in the field
of Cognitive Science.  At CHI '91, I took Jonides's one-day CogSci
tutorial and was amazed at the amount of experimental evidence that
if widely known could positively influence child rearing, education,
public policy, advertising, etc., etc.

For example, 
  * the results that show that people's ability to apply simple
    logic is impaired when they try to think about something that
    is either abstract or not related to what they know.
  * the tests you can take to prove to you certain things about how
    memory works, like the fact that we remember more by meaning than
    by exact wording, etc.
    
I challenge those of you in the field to look into creating such a newsletter.
It would be of great wide-ranging benefit, and it would probably pay for itself.

 --dave yost
From: vassilis@sun.pcl.ac.uk (Vassilis Konstantinou)
Newsgroups: sci.cognitive
Subject: Lecturer post in AI
Date: 14 Aug 92 11:11:08 GMT
Organization: Polytechnic of Central London


             LECTURER POST IN ARTIFICIAL INTELLIGENCE

             AI DIVISION - SCHOOL OF COMPUTER SCIENCE
		  The University of Westminster


Applications are invited for a Lecturer post in AI to support the
expanding AI  Division  in  our  school.  The  division currently
supports, a B.Sc. in AI, an M.Sc. in Cognitive  Science,  and  an
M.Sc. in Knowledge Engineering. The division also includes a very
active AI Research Group.

The  successful  applicant  is  expected  to  contribute  in  the
teaching of the  above  courses  in  one or more of the following
areas:

     a)   Distributed AI/KBS
     b)   Machine Learning
     c)   Scheduling
     d)   AI-related languages (PROLOG, LISP etc)
     e)   Human Computer Interaction
     f)   Natural Language Understanding
     g)   Alternative Logics (Modal, Temporal etc)
     h)   Computer Vision 

The successful applicant is also  expected  to  contribute  in the
research activities of the AI Research Group.

Applicants for this post must possess:

      1)  Postgraduate qualifications (preferably at Ph.D. level)
          in an AI related area.

      2)  Research experience in an AI related area.

Teaching experience will be an advantage.

The post is  temporary  for  one  year  (full-time)  and  will be
reviewed at the end of the one year period.

To apply send an extensive C.V. to:

        V. Konstantinou
        Head of AI Division
        School of Computer Science
	University of Westminster
        115 New Cavendish Str
        London W1M 8JS, UK.

        Tel: 071-911-5000 ext 3599/3598
        Fax: 071-911-5089
        Email:  vassilis@uk.ac.sun.pcl (JANET)
                vassilis@pcl.sun.ac.uk (Internet)


The deadline for applications is the 30th of August 1992.
-- 
--
V. Konstantinou
Head of A.I. Research Group
School of Computer Science, The Polytechnic of Central London