LabVIEW

cancel
Showing results for 
Search instead for 
Did you mean: 

speeding up imaq

Hi,
I have read some claims on here that state it is possible to run imaq at
better than 50 HZ. How? I simply want to take the pictures and save
them. I don't need to do anything else with them. If any one has any
suggestions please let me know.
Thanks
Jeremy


--== Sent via Deja.com http://www.deja.com/ ==--
---Share what you know. Learn what you don't.---
0 Kudos
Message 1 of 4
(3,110 Views)
Hello

If you do not display your images while acquiring, then the data
acquisition rate of your images will be higher (12MB/sec on my PC). This
will depend on your PCI bus usage and HD speed. B&W images are three times
faster than RGB. Smaller frame size will also help a lot (smaller
file/frame). The main problem is a camera that will do 60 Hz. This means
that it has to be non interlaced, progressive scan at 60 Hz. (Integrate
separate even and odd fields at 30 Hz each). You are talking $3K or more, so
the major hang-up is the camera indeed. If you can afford such a camera, you
are in business, most off the shelf $500 pc's and $500 frame grabber will do
the trick. If the frame grabber does not have LV support, you can convert
its C libr
ary into CIN. We use Matrox Meteor 2, and do have its LV drivers
from Imagemill, but had to go CIN route due to acquisition speed.

Good Luck

Bhaskar Singh

porter188@my-dejanews.com wrote:

> Hi,
> I have read some claims on here that state it is possible to run imaq at
> better than 50 HZ. How? I simply want to take the pictures and save
> them. I don't need to do anything else with them. If any one has any
> suggestions please let me know.
> Thanks
> Jeremy
>
> --== Sent via Deja.com http://www.deja.com/ ==--
> ---Share what you know. Learn what you don't.---
0 Kudos
Message 2 of 4
(3,109 Views)
Hi,

I have nearly the same problem. But not the camera is the prolblem. The camera runs with 100Hz. The real problem is to save them with 100Hz. How can I seeding up to save them faster then 3MByt/sec. I have a 3 GHz computer with the LabView RT7.1. The 8bit gray stile pictures I want to save are about 322kB big , so I get only a saving rat of 10 Hz. Is there a solution to seeding up the saving proces?

Thank's
0 Kudos
Message 3 of 4
(3,064 Views)
Hello KN-OP,

Thank you for using our discussion forums. If this does not need to be an acquisition running for a long time you could acquire the images in a burst at 100Hz and collect them in a array then every certain number of frames save them all to disk.

Nipun M
0 Kudos
Message 4 of 4
(3,043 Views)