[AG-TECH] video flicker

Donald J Lewis djlewis at ualr.edu
Wed Jul 11 16:50:54 CDT 2001


Try adjusting the monitor Vertical refresh reate for the projectors
on your display machine. 70hz, 72hz or 75hz might show an improvement.
The camera is scanning at 60hz(NTSC), as a last resort try 60hz on your
projectors.

-----Original Message-----
From: owner-ag-tech at mcs.anl.gov [mailto:owner-ag-tech at mcs.anl.gov]On
Behalf Of Franca Fiumana
Sent: Wednesday, July 11, 2001 11:24 AM
To: ag-tech at mcs.anl.gov
Subject: [AG-TECH] video flicker



Hello,
we did some tests using the camera in front of the screen and we
noticed video flickering, due to the different camera scan speed and
projector refresh rate.
I think we need a camera with the 'clear scan' option.
Has anyone experience with a camera with such feature to suggest
to employ in agnode; or -even better- is there a workaround to this
problem?

Regards,
Franca


-- 
Franca Fiumana                          e-mail:  f.fiumana at cineca.it
CINECA                                  phone:   +390516171588
InterUniversity Computer Center         fax:     +390516132198
Via Magnanelli, 6/3	 I-40033 Casalecchio di Reno (Bologna) Italy







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