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VISION-LIST Digest Volume 12 Issue 12
VISION-LIST Digest Mon Mar 15 11:22:10 PDT 93 Volume 12 : Issue 12
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Today's Topics:
Workshop Report: Visual Information Management Systems
algorithms/programs to find minimum sum of products
Looking for Book on Optical Flow
Need imagery for testing chape from shading
Help in setting up a new vision lab
Re: 2D Shape Comparison
Detection and recognition of regular motion from a motion sequence
Public domain interactive histogram specification program?
Looking for Canny and Deriche edge detection algorithms
----------------------------------------------------------------------
Date: Thu, 11 Mar 93 08:11:54 PST
From: jain@ece.UCSD.EDU
Subject: Workshop Report: Visual Information Management Systems
The report for the NSF sponsored workshop on Visual Information Management
Systems are now available. This workshop brought together researchers from
computer vision, databases, and applications areas to discuss important
research issues in the emerging field of Visual Informatuion Management
Systems. The report can be obtained by writing to
Ms Kathy Dewitt
A.I. Lab
1101 Beal Avenue
Ann Arbor, MI 48109
or in electronic form by using ftp. If you ftp it then use the following
ftp ftp.eecs.umich.edu
(login as anonymous and with password of ident)
cd ai
ls
get nsfwork.tex
quit
Any questions (or comments) on the report can be directed to me on e-mail.
Thanks for your interest,
Ramesh
------------------------------
Date: Thu, 11 Mar 93 09:47:08 GMT
From: Neil HARVEY <harve@spd.eee.strathclyde.ac.uk>
Subject: algorithms/programs to find minimum sum of products
Hello all,
I need some help and information. Perhaps some of you may be able to help.
I am a research fellow in the Signal Processing Division of the
University of Strathclyde, Scotland and I am working in the area of
nonlinear digital filters, specifically stack filters. I have a
problem in that in order to determine optimum filters I produce truth
tables from which I hope to determine Boolean functions- i.e. minimum
sum of products. As the number of literals increases I am unable to
determine the minimum sum of products from the truth table. Does
anyone know if there exist any algorithms/programs which can deduce a
minimum sum of products from a truth table with large numbers of
literals. Any references would be gratefully received. If anyone has a
suitable program, in C, perhaps you couls send it to me. Thank you in
advance for all your help.
Live long and prosper,
Harve.
Neal Harvey
Signal Processing Division, Dept. of Electronic and Electrical Engineering
University of Strathclydem 204 George Street, GLASGOW, Scotland G1 1XW U.K.
Telephone : 041 552 4400, ext. 2205
email : harve@spd.eee.strathclyde.ac.uk
------------------------------
Date: Thu, 11 Mar 93 09:34:46 EST
From: shep@datacube.com (Shep Siegel)
Subject: Looking for Book on Optical Flow
Last time I was out reference book browsing, I saw what looked to be
an excellent, though pricey, text devoted to Optical Flow and other
temporal algorithms. I think the text had "Optical Flow" in its title.
Does anyone know of this text? shep@datacube.com 508.777.4200
------------------------------
Date: Thu, 11 Mar 93 15:05:52 EST
From: tsai@eola.cs.ucf.edu (Tsai Ping-sing)
Subject: Need imagery for testing chape from shading
I am interested in testing my shape from shading algorithm on a large
number of images. I have so far tested my program with Lenna,
Mozart, Yow Man, tomato, and sphere images, which have been used in
the recent papers on shape from shading (See the list below). I do
not have access to other images used in the shading papers. I will
appreciate if someone can help me in getting those images.
Are there any other images which are unique for shape from shading
problem, and which have been tested for existing algorithms? In fact,
it might be good idea to collect a database of all relevant images
(with some ground truth) to shading problem, and make it available
through the Vision List Archive.
Ping-Sing Tsai
University of Central Florida
Orlando, FL 32816
Phone (407)823-2527
email tsai@eola.cs.ucf.edu
Note: This list in no way is complete, I might have missed to list
images which have been used in these papers. Please send me email
I will update my list, thanks.
\documentstyle {article}
\oddsidemargin = 0.1in
\topmargin = -0.4in
\leftmargin = -0.6in
\textwidth = 6.5in
\footheight = 0in
\footskip = 0in
\vsize = 9.8in
\hsize = 6.5in
\textheight = 9.3in
\begin {document}
\begin{tabular}{|l|l|l|}\hline
& Synthetic \hspace{1in} & Real \hspace{2in} \\ \hline
{\bf Ikeuchi and Horn}, & sphere & pseudo gray-level image \\
{\em Numerical Shape from Shading} & & \\
{\em and Occluding Boundaries}, & & \\
Artifical Intelligence 81 & & \\ \hline
{\bf Pentland}, & & log \\
{\em Local Shading Analysis}, & & rock \\
PAMI 84 & & Lisa \\
& & Tuckerman's ravine \\
& & scanning electron microscope image \\ \hline
{\bf Brooks and Horn}, & & \\
{\em Shape and Source From Shading}, & & \\
IJCAI 85 & & \\ \hline
{\bf Lee and Rosefeld}, & ellipsoidal image & egg on a black background \\
{\em Improved Method of Estimating} & & \\
{\em Shape from Shading Using the} & & \\
{\em Light Source Coordinate System}, & & \\
Artifical Intelligence 85 & & \\ \hline
{\bf Frankot and Chellappa}, & sphere & moon \\
{\em A Method for Enforcing Integrability} & & Laguna Hills DTM \\
{\em in Shape from Shading Algorithm}, & & \\
PAMI 88 & & \\ \hline
{\bf Pentland}, & egg crate surface & mountinous region \\
{\em Shape Information From Shading:} & fractal Brownian surface & ram's head \\
{\em A Theory About Human Perception}, & & Lenna \\
ICCV 88 and IJCV 90 & & yow man \\
& & nickel \\ \hline
{\bf Horn}, & crater & Huntington's ravine \\
{\em Height and Gradient from Shading} & & DTM \\
IJCV 90 & & \\ \hline
{\bf Ikeuchi and Sato}, & sphere & salad bowl \\
{\em Determining Reflectance Properties} & & tomato \\
{\em of an Object Using Range and} & & face \\
{\em Brightness Images}, & & \\
PAMI 91 & & \\ \hline
{\bf Leclerc and Bobick}, & twin-sphere & Oscar \\
{\em The Direct Computation of} & & mannequin \\
{\em Height from Shading}, & & \\
CVPR 91 & & \\ \hline
{\bf Szeliski}, & sphere & DTM of Colorado River \\
{\em Fast Shape from Shading}, & & \\
CVGIP 91 & & \\ \hline
{\bf Zheng and Chellappa}, & sphere & Lenna \\
{\em Estimation of Illuminate Direction} & ellipsoid & a human face \\
{\em Albedo, and Shape from Shading}, & mozart & single pepper \\
PAMI 91 & & multipepper \\ \hline
\end{tabular}
\newpage
\begin{tabular}{|l|l|l|}\hline
& Synthetic \hspace{1in} & Real \hspace{2in} \\ \hline
{\bf Bichsel and Pentland}, & & nickel \\
{\em A Simple Algorithm for} & & face \\
{\em Shape from Shading}, & & natural range image \\
CVPR 92 & & \\ \hline
{\bf Dupuis and Oliensis}, & & mannequin \\
{\em Direct Method For Reconstructing} & & \\
{\em Shape From Shading}, & & \\
CVPR 92 & & \\ \hline
{\bf Lee and Kuo}, & sombero & Agrippa \\
{\em Shape Reconstruction From} & sphere & \\
{\em Photometric Stereo}, & mozart & \\
CVPR 92 & David & \\ \hline
\end{tabular}
\end {document}
------------------------------
Date: Thu, 11 MAR 93 11:41 N
From: ROBERTO@uduniv.cineca.it
Subject: Help in setting up a new vision lab
Dear Sir(s),
my name is Vito Roberto; I'm a teacher/researcher in the
Department of Informatics, University of Udine (Italy),
where I lead research activities in image understanding/vision.
With two co-workers, I'm setting up a small vision laboratory,
mainly focussed on 3D model acquisition and sensor planning.
I'm interested in a raytracer, to support model acquisition:
can I find such a software in public-domain areas? If so, where?
Thanks in advance to anybody answering my questions.
Vito Roberto
E-mail: roberto@uduniv.cineca.it
Fax: +39 432 510755
------------------------------
Date: 11 Mar 93 19:23:15 GMT
From: prabir@cherokee.unl.edu (Prabir Bhattacharya)
Organization: University of Nebraska--Lincoln
Subject: Re: 2D Shape Comparison
Vision-List@TELEOS.COM writes:
>Definition: Shape is defined to be that characteristic which remains
> invariant under translation, rotation, and scaling.
>Question: Given two simple (non-intersecting, no holes) polygonal
> shapes, defined by two vertex lists (sets of x,y coordinates)
> containing outline information only (i.e. no 'landmark'
> data points - the two vertex lists will typically contain
> a different number of points), how can the shape of these
> two polygons be compared? We are looking for 'recent'
> (post 1980) references on this subject from any field.
Here is some literature on this problem:
1. S.K. Parui and D. D. Majumder, Shape Similarity Measures for Open Curves,
Pattern Recognition Letters, vol. 1, pp. 129-134, 1983.
2. S.K. Parui, S.E. Sarma and D.D. Majumder, How to Discriminate Shapes Using
the Shape Vector, Pattern Recognition Letters, vol. 4, pp. 201-204, 1986.
3. B. Bhanu and O.D. Faugeras, Shape Matching of Two-dimensional Objects,
IEEE PAMI-6, pp. 60-72, 1984.
4. F. Mokhtarian and A. Mackworth, Scale-Based Description and Recognition
of Planar Curves and Two-dimensional Shapes, IEEE PAMI-8, pp. 34-43, 1986.
5. R.L, Kashyap and B.J. Oommen, A Geometric Approach to Polygonal
Dissimilarity and Shape Matching, Internat. Conf. on Pattern Recognition,
pp. 472-479, 1982.
This has also been investigated for fuzzy images (see the book "Fuzzy
Pattern Recognition" by S.Pal and D.D. Majumdeder).
Best wishes,
Prabir Bhattacharya
prabir@cherokee.unl.edu
------------------------------
Date: Sat, 13 Mar 93 11:28 GMT
From: Gareth McAleese <CCBR13@ucvax.ulster.ac.uk>
Subject: Detection and recognition of regular motion from a motion sequence
Could this be posted I have looked at the rosenfeld bibs but not really
what I am looking for.
I am a first year Dphil (Phd) student in the department of computer science
at the University of Ulster. My research area is in image processing and
machine vision.
The project I am looking at is in the detection and recognition of regular
motion from a sequence of image sequences. The best example of this type
of motion is a beating heart. What I am looking for is details of current
research being carried out on this area and indeed on any articles that
have been published relevant to the above problem.
The main recognition technique to be used will be spatio-temporal neural
networks (i.e., neural networks adapted to handle time varying data)
information on this area would also be of interest.
I will post a summary of results tf I get a significant response.
Please email direct.
Gareth McAleese
Research Student
Department of Computing Science
University of Ulster at Coleraine
Coleraine, Co. Londonderry BT52 1SA, N. Ireland.
Fax: (+44) 0265-40916
JANET: CCBR13@uk.ac.ulster.ucvax
INTERNET: ccbr13%uk.ac.ulster.ucvax@nsfnet-relay.ac.uk
------------------------------
Date: Thu, 11 Mar 1993 16:20:42 -0700
From: kube@cs.ualberta.ca (Ron Kube)
Organization: University of Alberta, Edmonton, Canada
Subject: Public domain interactive histogram specification program?
Hello,
Is there a PD program that does interactive Histogram specification?
How about Homomorphic filtering?
Thanks in advance.
Ron Kube
------------------------------
Date: 15 Mar 1993 14:19:15 +0100
From: benamar@lai1.univ-lyon1.fr (Chokri BENAMAR)
Subject: Looking for Canny and Deriche edge detection algorithms
I'm carrently working with edge detection and subpixels algorithms. I'm
looking for the following software modules ( preferably in C ) : Canny and derriche algorithm for edge detection.
Any help would be greatly appreciated.
Thanks.
Chokri BEN AMAR
LAI,BAT.303,INSA,20 Avenue A.Einstein
69621 Villeurbanne FRANCE
TEL:(33)72.43.81.98
FAX:(33)72.43.85.15
E-MAIL:benamar@lai1.univ-lyon1.fr
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End of VISION-LIST digest 12.12
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