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- Newsgroups: comp.multimedia
- Path: sparky!uunet!morrow.stanford.edu!leland.Stanford.EDU!jeganath
- From: jeganath@leland.Stanford.EDU (Muthuveerappan Jeganathan)
- Subject: Frame Grabbers <-> PC RAM
- Message-ID: <1992Aug20.205727.7573@leland.Stanford.EDU>
- Sender: news@leland.Stanford.EDU (Mr News)
- Organization: DSG, Stanford University, CA 94305, USA
- References: <52092@dime.cs.umass.edu> <1992Aug20.200815.25848@PA.dec.com>
- Distribution: na
- Date: Thu, 20 Aug 92 20:57:27 GMT
- Lines: 16
-
- 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. I cross posted this on sci.image.processing.
-
- -- Muthu Jeganathan
-
-
-