Experimental Physics and
Industrial Control System

Peregrine McGehee <[email protected]> · Tue, 9 Sep 1997 07:01:07 -1000

[email protected] writes:
 > Hello All,
 > 
 > 	We have an application where we need to multiplex six
 > camera images of laser spots and syncrotron light images and process these 
 > images to find the centroid and width of each image.  An update rate of
 > one image per second is would be OK.  If the hardware is cheap we could
 > purchase 6 frame grabbers and do away with the multiplexing.  Is anyone 
 > doing this or something similar in EPICS?  Any help is appreciated.
 > 
 > Thanks, 
 > Coles
Coles -
	We are using the Data Translation DT-1451 to process video
frames for use as telescope guider. Frame grabber speed is 1/30
second, we integrate every 10 frames, and find the centroid of a hot
spot (actually the image of the star used for guiding) within a small
region of interest. 

I think the DT-1451's are fairly cheap - but DT doesn't officially
list them in their catalog. We also had to take their SunOS driver
software and port it to a Sparc 5 IOC. EPICS support is mostly in the
form of MOSUB records.

Peregrine

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System