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Re: ICPCI "black line" wierdness
Hello again!
On Wed, 24 Jan 2001, Dr. Michael Albert wrote:
> Dear Friends:
>
> I was warned (by Mr. Stein) that there might be problems with
> the IC-PCI card resulting in defects of the form of black pieces of
> lines of 128 or 256 pixels length. I am indeed seeing these.
> (For the record, again, an IC-PCI/AM-DIG acquisition with SMD 130P
> camera). But the behavoir is a bit unusual.
>
> If I run
> test_itifg -f <camfile>
> with the camera in "free running" mode the black lines
> on the image on the monitor are numerous and "jump around" in the image.
>
> If I run
> test_itifg -f <camfile> -o mmap
> the lines aren't present.
>
> If I attempt to save images to a file, for example:
> test_itifg -f <camfile> -o mmap -t -i <file>
> the lines *reappear*, but they no longer jump around, but instead
> in the first image I have lots of lines, in the second image
> I have only a few lines which are a *subset* of the lines
> in the first image.
Please retry it with moving your camera around or looking at fast moving
things. The problem is, that if grab a still scenery, after some time all
image pixels are transfered at least once and you think the image is ok.
If you move your camera, you see again, what pieces of you images are not
transfered in this frame - means belonging to an older frame.
> I am still testing some things, but I thought this behavoir
> so odd that I might ask if anyone has any ideas.
My expirience says, that there is no solution, it is a hardware defect.
You can change your motherboard (using another chipset), or send your
board to ITI to update it with a newer (QF) PCI-Matchmaker (You have to
pay for this).
matthias
> Again, thanks for all the help, especially Mr. Stein.
>
> Sincerely,
> Mike
>
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