02-09-2012 10:10 AM
Hi,
I checked several posts for image aquisition but I did'nt understand wether I can use a digital photocamera with my PCI-1411. We have to take pictures regularly timed and we have available a compact photocamera and a reflex one (Canon 500D). Would a converter S-video to USB be anough to connect the camera to the PCI-1411?
Any suggestion is more than welcome!
Giacomo
02-10-2012 03:25 AM
Hello Giacomo,
Can you give some more information about the complete project?
Should the camera be triggered by the pc or does it automatically produce a digital output feed?
The PCI-1411 (http://www.ni.com/pdf/manuals/374550a.pdf) expects an analogue signal at its inputs.
This signal should one of the following two:
- Composite video on BNC (RSE)
- Y/C on S-Video connector (RSE)
As far as I know, the Canon 500D is a digital reflex camera, so you should find a way to get an anlogue feed out of it to be able to use the PCI-1411.
02-10-2012 04:07 AM
Hi Thierry,
thanks for the fast reply and useful info!
The camera should be triggered by the pc in order to get a picture every minute in .tiff format. The images then will be then processed to recognize particles shape and distribution.
The canon eos 500D has the following connectors:
• USB 2.0 Hi-Speed
• Video output (PAL/ NTSC) (integrated with USB terminal)
• HDMI Type C
therefore I though we could use the video output to go to the PCI1411. But here I'm doubting on how to make the connections. The PCI1411 has three plugs (i.e. video, s-video, trig) and I'm guessing I have to connect the camera to the s-video and the trig port, but I don't see any cable which could do all of this.
For the moment I'm waiting for the PCI1411 to be delivered to me and I cannot try practically, but I'm trying to be prepeared.
Thanks again for any suggestion and tips!
Giacomo
02-28-2012 08:10 AM
Hello Giacomo,
I have been out of office for a few weeks because of holidays and courses.
Do you have User Manual/Spec Sheet of your camera available that I could use to look up the information you specify over here?
02-29-2012 07:21 AM
Hi Thierry,
thanks for your help and interest!
We currently have two cameras and the possibility to buy a new one if necessary. The manuals of the two photocameras:
1 - a compact one with which the PCI1411 probably wont work http://download1.medion.com/downloads/anleitungen/bda85863denlfr.pdf
2 - a digital reflex from canon http://www.evergreen.edu/medialoan/docs/photo_manual_rebelt1i.pdf
In case the both wont be able to communicate with the PCI1411, which are then the specifications of the camera one should look for?
Looking forward for your reply, I thank you again and wish a nice day.
Greetings,
Giacomo
03-13-2012 04:35 AM
Hello Giacomo,
Sorry for my late reply.
The flu and some other issues came in the way.
To be able to acquire images wit he PCI-1411 the only restriction is the type signal you're providing to its inputs.
In the User Manual (http://www.ni.com/pdf/manuals/372157d.pdf) You can find the 2 different supported types at page 3-2:
- (Composite) Video
- S-Video
More info can also be found in this document (http://www.ni.com/pdf/manuals/374550a.pdf)
The NI 1411 device supports both
NTSC and PAL color standards as well as the RS-170 and CCIR
monochrome standards.
So what you'll have to check is:
- Is there an S-video or Composite Video output on my camera? (I don't think this is the case with your cameras)
- Can I somehow convert my signal to S-Video/Composite Video?
There exist things that you can buy online for this.
Normally you can use any camera that has these types of outputs and that follow these standards:
- PAL/CCIR (25 frames/sec)
- RS-170/NTSC (29,97 frames/sec)