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Young-hoo Kwon
08-07-1993, 02:24 PM
Dear subscribers:

Here is the summary of the responses to my request of the video resources.
I am very grateful to all individuals who spent their precious time to
provide me with valuable resources.

My e-mail address--yxk109@psuvm--will be not in use any more as of August 9.
I will let you know my new address soon.

Young-Hoo Kwon


[SUMMARY]

I. FRAME GRABBERS

Data Translation, Inc.
100 Locke Drive
Marlboro, MA 01752-1192
USA
Phone: 508-481-3700
US Sales: 800-525-8528
FAX: 508-481-8620

DT2851 (B&W) & DT3851 (Color) series

MATROX Electronic Systems
1055 St. Regis Blvd.
Dorval, Quebec
Canada H9P-2T4
Fax: (514) 685-6066
Phone: (514) 685-7230

PIP series

Coreco, Inc.
6969 Trans-Canada Hwy, Suite 113
St-Laurent, Canada H4T 1V8
Phone: 514-333-3100
Technical Support: (514) 333-7190
Fax: (514) 333-1388

Occulus series

Others
New Media Graphics
Phone: 800-288-2207
Redlake
Phone: 408-779-6464
Univision
Phone: 617-221-6700
Imaging Tecnology, Inc.
600 West Cummings Park
Woburn, MA 01891-6343
Phone: 617-938-8444
Fax: 617-938-1757
Dipix Technologies
1050 Baxter Road
Ottawa, Ontario
Canada
Infrascan Inc.
Phone: (604) 273-8655
Fax: (604) 278-3423

II. VIDEO CONTROLLER or VIDEO EDIT CONTROLLER

BCD Associates, Inc.
7510 N. Broadwat, Suite 205
Oklahoma City, OK 73116
Phone: 405-843-4574
Fax: 405-840-3147

BCD Video Tape Control System

Future Video edit controller (714-770-4416)

III. COMMERCIAL SYSTEMS

Northern Digital (Optotrak)

Peak Performance Technologies, Inc. (Video Motion Measurement System)
7388 S. Revere Parkway, Suite 601
Englewood, Colorado, 80112
Phone: 303-799-8686
FAX: 303-799-8690

IV. RESOURCES

Biewener, A. and Full, R.J. Force plattform and kinematic analyis.
In: Biomechanics. Structures and Systems. A practical approach.
(Ed. by A. Biewener). Oxford University Press.
--some recommendations about image acquisiton and data analysis

Myler and Weeks. Computer Imaging Recipes in C, Prentice-Hall, 1993
ISBN 0-13-189879-5

V. STRATEGIES OF IMAGE GRABBING SUGGESTED

A. FIELD-BY-FIELD GRABBING on pause mode

* Put VCR on pause -> grab image (field) -> either store image in
the hard disk (w/ compression) or direct digitizing
* Requires time-base corrector & synch pulse generator integrated
VCR to grab a stable video image from the VCR on PAUSE mode
* Ariel System uses similar strategy.
* Time base corrector: a device which strips off the unstable video
synch pulse and adds a new stable one
* Manual field advance

B. FRAME-BY-FRAME GRABBING

* Grab video image frame by frame.
* Split each frame into odd and even field: interpolation is
required for the missing lines.
* Peak System uses this approach.
* Automatic frame advance with computer controllable VCR (RS232
interface) or VCR + video controller board