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VISION-LIST Digest Volume 11 Issue 03
VISION-LIST Digest Wed Jan 22 19:37:49 PDT 92 Volume 11 : Issue 3
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Today's Topics:
Metrics for resemblance
Supervised learning for nearest neighbor
Want references on Parallel Edge Detection
Sub-pixel location of gear teeth.
Request for confocal microscopy images
3D modeling and object motion
C source for OCR
Fuzzy camcorders
Need email address for Leonard Norton-Wayne
Night Vision Goggles
WANTED : Suntools program to plot an IFS to screen
Re: image-capture-cards for turbochannel? (very long)
----------------------------------------------------------------------
Date: 13 Jan 92 17:23:02 GMT
From: Paul Goldberg <pwg@dcs.ed.ac.uk>
Organization: Department of Computer Science, University of Edinburgh
Subject: Metrics for resemblance
Keywords: computational geometry/vision
I would like to know some examples of metrics on geometrical objects
(in particular polygons in the plane) which reflect some intuitive
notion of resemblance. That is, if two polygons "look similar" then their
distance apart using the metric will be small. Examples of the sort of
thing I'm looking for is the Hausdorff metric, usable for many classes
of point sets, or for polygons in particular the Frechet metric.
I have heard that there are many other metrics which are intended to do
a similar job, but I don't know about them. Can anyone mail me some
pointers/references to these? I am particularly interested in ones for
which the distance between two polygons is unique modulo classes of
translation/rotations, but right now all are welcome.
Paul Goldberg
pwg@dcs.ed.ac.uk
------------------------------
Date: Wed, 15 Jan 92 10:20:35 GMT
From: tr@fct.unl.pt (Thomas Rauber)
Subject: Supervised learning for nearest neighbor
Ladies and Gentlemen,
classifiers based on minimum distance nearest neighbor methods need data
reduction algorithms to shrink the set of class representatives to a few
prototypes. Examples are MULTIEDIT & CONDENSE.
We are interested in a state-of-the-art overview in respect to supervised
learning based on nearest neighbor rules.
We would be very greatful for any hints, also to specialized books and
journals.
Any researcher that sends us an answer will be provided with all incoming
responses.
Thank you for your attention.
Thomas W. Rauber | BITNET/Internet: tr@fct.unl.pt
UNIVERSIDADE NOVA DE LISBOA | UUCP: tr@unl.uucp
Grupo de Robotica Inteligente | Fax: (+351) (1) 295-5641/4461
2825 Monte Caparica, PORTUGAL | Phone: (+351) (1) 295-4464 x.0460
------------------------------
Date: Wed, 15 Jan 92 9:44:52 GMT
From: Stephen Marshall <sm@spd.eee.strathclyde.ac.uk>
Subject: Want references on Parallel Edge Detection
I am putting together a survey of work on parallel edge detection and related
algorithms (clustering, linking, hough, pyramids etc). If you have any work
which you feel is worthy of inclusion and which I might have missed, please
let me know,
Many thanks
Dr Steve Marshall
Dept of Electronic and Electrical Eng.
Univ of Strathclyde
204 George Steet,
Glasgow G1 1XW
041 552 4400 ext 2199
email sm@uk.ac.strathclyde.eee.spd
------------------------------
Date: Wed, 15 Jan 92 10:03:14 GMT
From: Mark Robinson (JO PhD) <mark-r@spec0.ee.man.ac.uk>
Subject: Sub-pixel location of gear teeth.
I am currently working on a project to inspect gear teeth using vision.
Do do this I need to locate the teeth in the image to sub-pixel accuracy
(some a-priori knowledge can be assumed - the whole cog will be in view
and somewhere near the centre of the image) and then to measure the conformance
of the tooth profile to an ideal involute. The problem is that individual
teeth may only occupy an area of only about 10-20 pixels square.
Ideas/references would be appreciated.
mark-r@snow_white.ee.man.ac.uk
------------------------------
Date: Thu, 16 Jan 92 09:41:02 -0500
From: Nagarajan Ramesh <nar@pandora.cs.wayne.edu>
Subject: Request for confocal microscopy images
Greetings,
I was wondering if anybody out there has some confocal microscopy images
that I could use on my Ph.D. dissertation. Images of any kind
right from human organs/tissues to semiconductor chips will be of help.
I appreciate any help of pointers.
Nagarajan Ramesh
Dept. of Computer Science
Wayne State University
Detroit MI 48202
email: nar@cs.wayne.edu
------------------------------
Date: 20 Jan 92 23:39:51 GMT
From: rkc@xn.ll.mit.edu
Organization: MIT Lincoln Laboratory
Subject: 3D modeling and object motion
I have an upcoming project in which I will need images that were generated by
a program that allows me to model simple objects and the motion that they are
experiencing. (No, that is not the project, that is the _input_ to the
project.) Are there any public domain cad programs for X-based machines that
will do this for me, or could be easily modified to make this work? I am
envisioning simple things like cubes and spheres undergoing translation and
rotation. I would also like to put together a more complicated scene, and
suspect that this task would be made easier by a program that someone spent
some time building an interface for.
Any pointers would be valuable to me, as I am unaware of any public domain
software that does this.
e-mail to rkc@ll.mit.edu is preferred.
Thanks for any help you can provide,
-Rob
------------------------------
Date: Fri, 17 Jan 92 01:09:14 GMT
From: ph_su@chef.bristol-poly.ac.uk (J.B. the Frog!)
Subject: C source for OCR
Hello,
I'm looking for C source code on character recognition and computer
vision. In fact, I'm doing a project on a license plate character
recognition on X-windows, using the GIF file format, and I wish to
know if you have anything that will help me.
Thank you very much in advance,
Jean-Baptiste SU
French exchange student at Bristol Polytechnic (U.K.)
Final year in Computer Science (Bsc Hns.)
Janet address: uk.ac.brispoly.csd
Internet address: csd.brispoly.ac.uk
------------------------------
Date: Fri, 17 Jan 92 20:18:50 KST
From: dmyoon@csd.postech.ac.kr (Yoon Doo Man)
Subject: Need email address for Leonard Norton-Wayne
Help for me to get an address.
I'm trying to get in touch with Leonard Norton-Wayne at dept. of
systems science in City University,London who got phd with
"The detection of defects in Automated visual inspection".
Could you tell me his e-mail or postal address if you know ?
Thanks...
e-mail : dmyoon@csd.postech.ac.kr
Doo-man Yoon
------------------------------
Date: Fri, 17 Jan 1992 19:53:03 GMT
From: mukul@laser1.engr.utk.edu (Mukul Shirvaikar)
Organization: University of Tennessee ECE dept.
Subject: FUZZY CAMCORDERS
Keywords: fuzzy, camcorders, image stabilization
I would appreciate if anyone could e-mail me some references on
FUZZY CAMCORDERS
in which fuzzy control is used for image stabilization.
Any pointers would be helpful.
Thanks,
Mukul Shirvaikar
------------------------------
Date: Wed, 22 Jan 92 11:12:16 EST
From: Howard L Greene <hgreene@magnus.acs.ohio-state.edu>
Subject: Night Vision Goggles
I am a vision researcher at the Ohio State University and I am in need
of a pair of "night vision goggles" (essentially an image converter
that allows viewing of an image in the near infrared range). If
anyone has infomation concerning where a reasonably priced pair can be
obtained (new or used), I would greatly appreciate it.
Howard Greene
------------------------------
Date: Mon, 20 Jan 1992 10:29:04 GMT
From: unregistered@newcastle.ac.uk (D J Nettleton)
Organization: University of Newcastle upon Tyne, UK NE1 7RU
Subject: WANTED : Suntools program to plot an IFS to screen
Hello, do any of you nice people out there have a program that takes
the coefficients of an IFS (Random Iteration Algorithm for instance),
generates the fractal that they represent and then shows that image in
a window on suntools.
Many thanks in advance,
Dave Nettleton.
e.mail:- D.J.Nettleton@durham.ac.uk
------------------------------
Date: Tue, 14 Jan 92 11:03:36 -0500
From: Richard Szeliski <szeliski@crl.dec.com>
Subject: Re: image-capture-cards for turbochannel? (very long)
X-Mts: smtp
Status: RO
Joerg,
Digital now sells a frame grabber for the TurboChannel. We just installed
one in our lab yesterday, and it works great! Below I am including the
technical fact sheet from our Multimedia Engineering group. Your best bet
for purchasing would be to contact your local Digital Sales Rep.
Sincerely,
Richard Szeliski
Digital Equipment Corporation
Cambridge Research Lab
One Kendall Square, Bldg. 700
Cambridge, MA 02139
(617) 621-6634
Digital Equipment Corporation
Fact Sheet
Product Name: DECmedia Multimedia Hardware
Overview:
DECmedia options are the hardware components of Digital's
Integrated Multimedia program. The options are designed for use
with Digital's TURBOchannel-based line of RISC workstations.
TURBOchannel is Digital's open, high-performance, I/O interconnect
integral to the DECstation 5000 workstations Models 120, 125 and
200.
The Three DECmedia TURBOchannel options -- TX 'true-color' frame
buffer, DECvideo/PIP (Picture-in-a-Picture), and DECaudio --
when used with Digital's XMedia Tools Version 1.0 for ULTRIX
software brings powerful integrated 'X-like' multimedia
capabilities to Digital's high-powered, RISC-based workstations.
Key Features:
TX frame buffer (single-slot option)
. 24-plane color frame buffer for DECstation 5000
platforms
. targets applications requiring 24-plane color without
graphics acceleration
. available in 66Hz and 72Hz for high-resolution and
multi-screen display, supports up to 3 monitors
simultaneously
. incorporates Brooktree Corporation's Bt463 TrueVu color
RAMDAC that provides separate colormaps for displaying
different visual modes with variable plane depths
DECvideo/PIP option (daughter card to TX)
. adds "video-in-a-window" capabilities to the DECstation
5000 workstation family
. provides live NTSC (30 frames/sec), PAL or SECAM (25
frames/sec) full-motion "video in a window". Video
windows can be scaled from full size to icon size and
individual frames can be captured and stored
. XMedia Tools Runtime Kit license provided at no
additional charge with DECvideo/PIP option; (see XMedia
Tools factsheet for more details)
Page 2
[Key Features continued...]
DECaudio (single-slot option)
. adds audio capabilities to the DECstation 5000
workstation family
. TURBOchannel option provides telephone-grade audio in
and out
. includes interface to a Motorola 56001 DSP and an
external distribution box with:
-- microphone, headphone and handset jacks; microphone
pre-amplification for gain flexibility with a wide
range of mics
-- telephone-grade line in and out (8 bit, 8KHz sampling)
-- CD-quality audio (stereo 16 bit, 44.1 KHz sampling)*
-- stereo volume/balance control with amplified speaker*
-- ISDN S interface (certification country specific)*
-- DSP port*
. XMedia Tools Runtime Kit license provided at no
additional charge (see XMedia Tools factsheet for more
details)
* software support provided in future releases of XMedia Tools for
RISC/ULTRIX.
DECaudio Hardware Specifications:
Controllers
1 Motorola 56001 DSP
2 AMD 79C30A Codec chips
Inputs Connectors
mono microphone with pre-amp mini jack (1/8 inch, 3.5mm)
mono handset 4-pin modular telephone
jack mono line in RCA phono jack
analog telephone line & set 4-pin modular telephone jack
(for USA and Canada)
ISDN S Interface
(certification country specific)
Page 3
[DECaudio Hardware Specifications continued...]
Outputs Connectors
2 mono speaker jacks mini jack
mono line out RCA phono jack
stereo headphone mini jack
stereo line out RCA phono jacks
internal speaker in distribution box
analog telephone line & set 4-pin modular jack
(for USA and Canada)
ISDN S Interface
(certification country specific)
Sampling Rates
8-bit, A-law or mu-law encoding, 8KHz
dual channel, 16-bit, 44.1KHz
These TURBOchannel options for Digital's DECstation 5000 family of
workstations provide the enabling workstation hardware technologies
which, together with the XMedia Tools for RISC/ULTRIX software, will
enable users and software developers to build client/server-based,
network-distributed, multimedia applications. Together with Digital's
Ethernet and FDDI networking technologies, and Compound Document
Architecture (CDA), Digital and developers can deliver the distributed
solution to organizations with networked multimedia needs.
Requirements:
ULTRIX System Software
A DECstation 5000 workstation Models 120,125 or 200
Pricing:
U.S. prices for single units
TX frame buffer $5,495.
DECvideo/PIP $1,995.*
DECaudio $1,995.*
* Both DECaudio and DECvideo/PIP include the XMedia Tools Runtime Kit
license; a component of the XMedia Tools for RISC/ULTRIX. (see separate
fact sheet for details)
DECstation, TURBOchannel, ULTRIX, and XMedia Tools are trademarks of
Digital Equipment Corporation. TrueVu is a trademark of Brooktree
Corporation. Motorola is a registered trademark of Motorola, Inc,.
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End of VISION-LIST digest 11.3
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