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- Path: sparky!uunet!decwrl!ucbvax!ADS.COM!Vision-List-Request
- From: Vision-List-Request@ADS.COM (Vision-List moderator Phil Kahn)
- Newsgroups: comp.ai.vision
- Subject: VISION-LIST digest 11.27
- Message-ID: <9208130400.AA04780@euler.ads.com>
- Date: 10 Aug 92 22:28:49 GMT
- Sender: daemon@ucbvax.BERKELEY.EDU
- Reply-To: Vision-List@ads.com
- Distribution: inet
- Organization: The Internet
- Lines: 532
- Approved: vision-list@ads.com
-
- VISION-LIST Digest Mon Aug 10 14:28:50 PDT 92 Volume 11 : Issue 27
-
- - Send submissions to Vision-List@ADS.COM
- - Vision List Digest available via COMP.AI.VISION newsgroup
- - If you don't have access to COMP.AI.VISION, request list
- membership to Vision-List-Request@ADS.COM
- - Access Vision List Archives via anonymous ftp to FTP.ADS.COM
-
- Today's Topics:
-
- Re: Motorized Lenses
- Re: Motorized lenses
- Re: Motorized lenses
- Frame grabber boards
- Stereo Images
- Images Needed
- Need color textures
- Amoco position correction
- JOB ANNOUNCEMENT: Post-Doc in machine learning/computer vision
- One year research associateship
- Computer Vision Symposium
- Tech Report: Neural Model of Visual Attention & Invariant PR
-
- ----------------------------------------------------------------------
-
- Date: Tue, 21 Jul 92 03:48:52 -0400
- From: Payman Khalili <pka@engin.umich.edu>
- Subject: Re: Motorized Lenses
-
- Marapane Suresh (srsuresh@laser1.engr.utk.edu) writes:
-
- > I am interested in purchasing a couple of lenses that have
- > electric motors WITH feedback to operate zoom, focus, and
- > iris. Does anyone know where I can buy such lenses?
- >
- > Thanks in advance.
-
- Well, I did research this area quite a bit. However, we never
- purchased such a system. Here is all the information which I
- gathered. I hope someone in netland finds it useful!
-
- I know for a fact that Fujinon and Cosmicar make motorized lenses.
- However, I am not sure what kind of feedback you are looking for.
- I believe the lenses sold by these manufacturers simply have a motor
- on them and they use a simple potentiometer for feedback.
-
- Depending on what model lens you decide to purchase, you can control
- one or all of zoom, focus, and iris. The price range for such lenses
- (lens alone!) is from $1000 (6x zoom lens, fully motorized) to $5000 (14x
- zoom lens, fully motorized). These prices are about 2 years old.
-
- Fujinon lenses are available through the following suppliers (and maybe
- others too):
-
- D.O. Industries, Inc.
- 200 Commerce Dr.,
- Rochester, NY 14623
- (800) 828-6778
- (716) 359-400
-
- Cosmicar lenses are available through (and maybe others too):
-
- Chori America, Inc.,
- One Penn Plaza, Suite 5440,
- New York, NY 10119
- (212) 563-3264
-
- Furthermore, there is a company called VICON which makes motorized
- lenses. I don't know what kind of feedback these lenses provide.
- But, they do provide feedback. Their address is:
-
- VICON Industries, Inc.
- Corp. Headquarters
- 125 E. Bethpage Rd.,
- Plainview, NY 11803
- (516) 293-2200
- (800) 645-9116
-
- In addition, there is a company called TS Products who will custom make
- such a lens as well as the controller for it. I believe that University
- of Illinois has purchased two such lenses from them. The system which
- they sell comes complete with lens, controller, and software, etc. and
- can be connected to a computer via a serial port.
-
- I believe that they modify a (motorized) Vicon Lens to make such a system.
- They remove the original motor and install one of their own DC micromotors.
- Furthermore, I think they add a digital encoder on the lens for precise
- feedback.
-
- The price which they quoted me for this (single lens) system is $11,700.
-
- Their address is:
-
- TS Products,
- 12455 Branford St., Bldg. 22
- Arleta, CA 91331, USA
- (818) 896-6676
-
- Well, thats's all folks! Good luck...
-
- -- Payman Khalili (pka@caen.engin.umich.edu)
-
- ------------------------------
-
- Date: Tue, 21 Jul 92 11:35:55 +0200
- From: Joao Goncalves <joao.goncalves@cen.jrc.it>
- Subject: Re: Motorized lenses
-
- We are using motorized lenses from ERNITEC, a danish company (see address
- below). We have two M10Z10 lenses with the following characteristics:
- * focal length: 10.0 -> 100.0 mm
- * aperture F1.2
- * Auto iris (8-18VDC)
- * Potentiometers on Zoom and Focus
-
- We built our own driving system (very simple: 2 A/D converters, and motor
- control based on a ON/OFF drive, and a electronic switch for direct and
- reverse motion - 6 or 12 Volt DC)
-
- They have other models with feedback pots: M8Z6, M12Z6, M17Z6, M16Z10
- MxxZyy: minimum focal length = xx mm
- maximum focal length = xx * yy mm
-
- The quality of the optics is not super, but it suits our needs.
-
- ERNITEC: Horkaer 22-24, DK 2730 Herlev, Denmark
- tel: 45 + 44 92 30 00
- fax: 45 + 44 92 72 82
-
- Joao G.M. Goncalves
- CEC - Joint Research Centre tel: 39 + 332 + 789 416
- 21020 Ispra (VA) fax: 39 + 332 + 789 185
- ITALY E-mail: joao.goncalves@cen.jrc.it
-
- ------------------------------
-
- Date: Tue, 28 Jul 92 11:36:32 MDT
- From: hic@vision.auc.dk
- Organization: Lab of Image Analysis, IES, Aalborg University
- Subject: Motorised lenses
-
- Hello,
-
- Motorized lenses are available from a number of companies, examples are:
-
- Ernitec, Denmark:
-
- Zoom, Focus, Aperture (DC motor control)
- Available with the following options
-
- TYPE Focal length Max Aperture
- m8z6 8-48 mm F1.2
- m12z6 12-75 mm F1.2
- m10z10 10-100 mm F.16
- m17z6 17-105 mm F1.8
- m16z10 16-160 mm F1.8
-
- There is feedback for zoom, focus and aperture (also available with
- autoiris). Feeddback through 5K potentiometers.
-
- Ernitec is a production company and you will have to buy through a
- distributor such as Antech A/S, Bygaden 51A, 4040 Jyllinge, Denmark
- Phone: 46 73 26 66.
- //////////////////////////////////////////////////
- VideoTronic Uwe Bischke GMBH, Lahnstrasse 1, 2350 Neumunster 6, Germany
- Phone: 0 43 21 8 79 0
-
- The following options are available:
-
- Type Focal Length Aperture
- 575738 8-48 mm F1.2
- 530303 12.5-75 mm F1.8
- 575740 15-90 mm F1.8
- 530271 17-102 mm F2.0
-
- All lenses have DC motors. Feedback for zoom and focus and autoiris.
- Feedback exploits 5K potentiometers.
- //////////////////////////////////////////////////
- Vista Vision Systems, Levanroy House, Deanes Close, Stevenson,
- Oxfordshire OX13 6SR, UK., Phone 0235 834466
-
- Motorised lense 7 - 60 mm with potentiometer feedback from focus, zoom
- and aperture (5Kohm). All motors are DC with a nominal voltage of 12 V
- (30 mA)
- //////////////////////////////////////////////////
- Electronique Informatique Applications, Multipole BP-6, 41 - Chemin de
- Vieux chene, 38241 MEYLAN Cedex, Phone 16-76 90 34 00.
-
- Motorised lenses in two options:
-
- Servolens
- X6 12-75 mm F1.6
- X10 10-100 mm F1.6
-
- Moth lenses are equipped with a microcontrooler and the interface is
- thus an RS-232 serial line through which one may interact with the
- lens controller using a simple command language.
-
- Regards,
-
- Henrik I Christensen
-
- ------------------------------
-
- Date: 23 Jul 92 07:28:38 GMT
- From: olivier@coral.cs.jcu.edu.au (Olivier de Vel)
- Organization: James Cook University
- Subject: Frame grabber boards
- Keywords: frame grabber, PC AT
-
- We are interested in purchasing a DataTranslation QuickCapture
- frame grabber board for the PC AT.
-
- Anybody have any experience with this board (advantages and
- disavantages etc...).
-
- Thanks,
- Olivier de Vel
- Dept of Computer Science
- James Cook University
- Townsville Q4811
- AUSTRALIA
-
- olivier@curacoa.cs.jcu.edu.au
-
- ------------------------------
-
- Date: Tue, 4 Aug 1992 19:59:34 GMT
- From: bokil@seas.smu.edu (Amol Bokil)
- Organization: School of Engineering and Applied Science
- Subject: Stereo Images
-
- Hi,
- We are interseted in acquiring epipolar stereo images (hopefully with
- their true disparity maps) and as such would be very grateful if someone could
- make them available to us or provide pointers to where they might be obtained
- from. Please respond to bokil@star0.seas.smu.edu.
-
- Thanks
-
- Amol
-
- ------------------------------
-
- Date: Tue, 28 Jul 1992 12:23:40 GMT
- From: rajapaks@acsu.buffalo.edu (Jagath Rajapakse)
- Subject: Images Needed
-
- Hello everybody,
-
- I am looking for the following images for some experiments relating to
- my thesis.
- (1). Pentagon Building Image.
- (2). An intensity image and A range image taken from the same
- scene (registered).
-
- If anyone willing to provide me with the above image/s, could email
- me at rajapaks@eng.buffalo.edu .
-
- thanks for your kind consideration.
-
- -Jagath Rajapakse
- Dept of Electrical Engineering.
- SUNY at Buffalo.
-
- ------------------------------
-
- Date: Thu, 30 Jul 92 18:52:11 BST
- From: tnt@hudson.ads.com (Tieniu Tan)
- Subject: Need color textures
-
- Dear Colleagues,
-
- Some of my current research work requires the use of color textures. I would
- greatly appreciate pointers to possible FTP sites where color textures
- (preferablly in SUN raster format) are freely available.
-
- Please send your reply to me directly.
-
- Thanks in advance.
-
- TNT.
-
- ------------------------------
-
- Date: Thu, 23 Jul 92 11:34:25 CDT
- From: zaxw16@nap.amoco.com (Amir Waks)
- Subject: Amoco position correction
-
- The previous announcement of the position was mistaken in the following sense.
- The candidate should possess MS/Ph.D and not BS/MS.
-
- Amir Waks, Ph.D
- Amoco Technology Company
- Mail Code F-2
- P.O. Box 3011
- Naperville, IL 60566
-
- ------------------------------
-
- Date: Wed, 29 Jul 92 23:07:37 GMT
- From: wolff@cache.crc.ricoh.com (Gregory J. Wolff)
- Organization: RICOH California Research Center
- Subject: JOB ANNOUNCEMENT: Post-Doc in machine learning/computer vision
- Keywords: job, learning theory, image processing, vision
-
- POST-DOCTORAL POSITION AVAILABLE
-
- The Machine Learning and Perception Group at The Ricoh California
- Research Center seeks an exceptionally talented candidate for a one-year
- post-doctoral position in either of the following two areas:
-
- 1) Computational learning theory
- The ideal candidate will have knowledge of theories of learning and
- generalization (Vapnik-Chervonenkis dimension, Kolmogorov methods,
- Probably Approximately Correct methods,...), information theory (Akaike
- and Fisher information, Cramer-Rao bounds,...), and connectionist learning
- methods (backpropagation, Boltzmann learning,...). C programming ability
- and experience with parallel and connectionist learning systems is highly
- desirable. The successful candidate will have access to extremely powerful
- learning machines at Ricoh, such as an Adaptive Solutions, Inc. CNAPS
- Neurocomputer and an in-house giga-connection update/second Boltzmann
- learning machine, for fundamental and applied studies of computational
- learning theory.
-
- 2) Computer vision and understanding
- The ideal candidate will have knowledge and experience with visual feature
- detection methods, motion estimation, shape from shading, adaptive visual
- processing, model based recognition, and be an accomplished C
- programmer. A knowledge of lip reading and speech recognition is highly
- desirable.
-
- A completed dissertation is expected.
-
- The Ricoh California Research Center
- Nestled at the base of the panoramic Palo Alto Hills, The Ricoh California
- Research Center is adjacent to hundreds of acres of wildland and is within
- walking distance of Stanford University and easy driving distance of
- Berkeley, Santa Cruz and other San Francisco Bay Area research centers.
- Research areas at CRC include Machine Learning and Perception; Color
- Image Processing; Document Analysis; Remote Diagnostics and Parallel
- Image Processing. There is an extensive UNIX-based network of SUN,
- Silicon Graphics and other workstations, graphics capability, and an in-
- house learning machine mentioned above. We expect to have an ASI
- Neurocomputer by the time the post-doc has arrived. Accounts on
- Connection Machine and MassPar supercomputers are also possible.
-
- Please send a letter describing research interests and curriculum vita and one
- or two representative papers/conference papers/dissertation chapters to the
- address below. (Please do not have letters of recommendation sent at this
- time; neither should you send your vita by e-mail.)
-
- Questions may be addressed to: stork@crc.ricoh.com or the address below.
- Send application to:
-
- Dr. David G. Stork
- Ricoh California Research Center
- 2882 Sand Hill Road Suite 115
- Menlo Park, CA 94025-7022 attn: Post-doc position
-
- Ricoh Corporation, an equal opportunity/affirmative action employer.
- M/F/H/V. Must be able to legally work in the U.S. on a full time basis.
-
- ------------------------------
-
- Date: Mon, 3 Aug 92 12:24:07
- From: austin@minster.york.ac.uk
- Subject: One year research associateship
-
- Applications are invited a one year research associateship
- within the department of Computer Science on a DTI/SERC JFIT
- research project. The post is available from mid september
- 1992. Applicants should preferably have programming and
- research experience of computer vision and neural networks.
- Furthermore, a knowledge of C is required, preferably with a
- knowledge of UNIX and X windows.
-
- The work is in the domain of automated visual guidance of
- airborne vehicles. In particular, the development of paral-
- lel vision algorithms, based on neural networks. A major aim
- is to develop methods for combining high and low level
- information in the recognition process.
-
- The project is in collaboration with the University of
- Surrey, RSRE Malvern and British Aerospace plc. Salaries
- will be on the 1A scale (12,129-14,936 pounds sterling).
- Informal enquiries may be made to Dr. Jim Austin (0904
- 432734, email: austin@minster.york.ac.uk). Further particu-
- lars may be obtained from The Registrar's Department,
- University of York, Heslington, York, YO1 5DD, UK to whom
- three copies of a curriculum vitae should be sent. The clos-
- ing date for applications is Friday 14th August 1992. Please
- quote reference number 6401.
-
- August 3, 1992
-
- ------------------------------
-
- Date: Mon, 10 Aug 92 17:31:45 GMT
- From: dudek@daeron.mcrcim.mcgill.edu (Gregory Dudek)
- Organization: McGill Research Centre for Intelligent Machines
- Subject: Computer Vision Symposium
-
- Computer Vision: Introduction and Perspectives
-
- A tutorial and presentation of current research results
- for industry managers, scientists, and engineers.
-
- FOR MORE INFORMATION, REPLY TO
- email: levesque@crim.ca
- telephone number: (514) 340-5723
- NOT TO THE POSTER OF THIS MESSAGE.
-
- The McGill Research Centre for Intelligent Machines and
- The Centre de recherche informatique de Montreal
- will be holding a 2-day symposium on computational vision
- in Montreal, Canada. There will be one tutorial day and one
- day presenting state-of-the-art research and lab demos.
- The will also be selected industrial exhibitors.
-
- Monday, September 14th and
- Tuesday, September 15th, 1992
-
- ************************
-
- This symposium has two objectives. On the first day, it will
- introduce computer vision to the non--expert and deal with
- fundamental approaches to processing and interpreting visual data.
- This will provide the background on basic tools and techniques for
- solving various types of vision problems which may arise in your
- workplace. It will also address the limitations of convential
- computer vision systems.
-
- On the second day, selected state--of--the--art approaches to
- outstanding problems in computer vision problems will be presented
- by researchers form the McGill Research Centre for Intelligent Machines.
- In all, this symposium will present a picture of what is feasible with
- current computer vision methods and technology, and how they can be
- applied. In addition, it will indicate where the field is headed and
- what potential opportunities are likely to appear in the near future.
-
-
- LOGISTICAL INFORMATION AND REGISTRATION FORM
-
- Programme and Organizing Committee:
- Margaret Dalziel, Gregory Dudek, Julian Lebensold
-
- $300 for both days, $200 for one day (either),
- less $50 for CRIM and PRECARN members.
- $50 off for early registration.
-
- A limited number of student spaces will be available without
- charge on a first come, first served basis.
-
- For information call: (514) 340-5723
- Email: levesque@crim.ca
- Fax: (514) 340-5777
-
- *********************************
-
- FOR MORE INFORMATION, REPLY TO
- email: levesque@crim.ca
- telephone number: (514) 340-5723
- NOT TO THE POSTER OF THIS MESSAGE.
-
- ------------------------------
-
- Date: Fri, 7 Aug 92 22:53:27 PDT
- From: bruno@cns.caltech.edu (Bruno Olshausen)
- Subject: Tech Report: Neural Model of Visual Attention & Invariant PR
-
-
- The following technical report has been archived for public ftp:
-
- A NEURAL MODEL OF VISUAL ATTENTION AND INVARIANT PATTERN RECOGNITION
-
- Bruno Olshausen, Charles Anderson*, and David Van Essen
-
- Computation and Neural Systems Program
- Division of Biology, 216-76
- and
- *Jet Propulsion Laboratory
- California Institute of Technology
- Pasadena, CA 91125
-
- CNS Memo 18
-
- Abstract. We present a biologically plausible model of an attentional
- mechanism for forming position- and scale-invariant object
- representations. The model is based on using control neurons to
- dynamically modify the synaptic strengths of intra-cortical
- connections so that information from a windowed region of primary
- visual cortex, V1, is routed to higher cortical areas while preserving
- information about spatial relationships. This paper describes details
- of a neural circuit for routing visual information and provides a
- solution for controlling the circuit as part of an autonomous
- attentional system for recognizing objects. The model is designed to
- be consistent with known neurophysiology, neuroanatomy, and
- psychophysics, and it makes a variety of experimentally testable
- predictions.
-
- *********************************
-
- Obtaining the paper via anonymous ftp:
-
- 1. ftp to kant.cns.caltech.edu (131.215.135.31)
-
- 2. login as 'anonymous' and type your email address as the password
-
- 3. cd to pub/cnsmemo.18
-
- 4. set transfer mode to binary (type 'binary' at the prompt)
-
- 5. get either 'paper-apple.tar.Z' or 'paper-sparc.tar.Z'. The first
- will print on the Apple LaserWriter II, the other on the SPARCprinter.
- (They may work on other PostScript printers too, but I can't guarantee it.)
-
- 6. quit from ftp, and then uncompress and detar the file on your
- machine by typing
-
- uncompress -c filename.tar.Z | tar xvf -
-
- 7. remove the tarfile and print out the three postscript files
- (paper1.ps, paper2.ps and paper3.ps), beginning with paper3.ps.
-
- If you don't have an appropriate PostScript printer, then send a
- request for a hardcopy to bruno@cns.caltech.edu.
-
- ------------------------------
-
- End of VISION-LIST digest 11.27
- ************************
-