Frame Grabbers <-> PC RAM

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#518

From: Muthuveerappan Jeganathan
Date: Wed, 19 Aug 1992 22:49

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Hi, I hope this is the appropriate news group for the following discussion. I 
have a question regarding image transfer from frame grabbers to PC RAM. I am 
interested in capturing a 1k x 1k x 8 (1 MB) image from a CCD using a frame 
grabber. At what rate can I dump these images from the frame grabber on to the 
PC RAM or possibly a SCSI hard disk. If the CCD operated at 5Hz frame rate, is 
it possible to transfer all 5 MB to the RAM in a second? I have been told data 
transfer is limited by the PC bus. Is this true? How about with a DMA transfer?
If the answer depends on the system, what are the typical transfer rates for
a 486 50 MHz PC with 64 MB RAM and 1 GB SCSI HD.

Any help is appreciated. Thanks. By the way, if this would be more appropriate
for another group let me know.

-- Muthu Jeganathan

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Message-ID: <1992Aug19.224941.12953@leland.Stanford.EDU>

Path: arc1-ca.pugleaf.net!sparky!uunet!morrow.stanford.edu!leland.Stanford.EDU!jeganath

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Newsgroups: sci.image.processing
Path: arc1-ca.pugleaf.net!sparky!uunet!morrow.stanford.edu!leland.Stanford.EDU!jeganath
From: jeganath@leland.Stanford.EDU (Muthuveerappan Jeganathan)
Subject: Frame Grabbers <-> PC RAM
Message-ID: <1992Aug19.224941.12953@leland.Stanford.EDU>
Sender: news@leland.Stanford.EDU (Mr News)
Organization: DSG, Stanford University, CA 94305, USA
Distribution: usa
Date: Wed, 19 Aug 92 22:49:41 GMT
Lines: 16