2010/10/11 Blaise Gassend <blaise@willowgarage.com>:
> Hi Rene,
>
> Thanks for the feedback!
>
>> First of all, the corresponding tutorial [1] contains launch files that
>> don't seem to match the software in C Turtle. The sample launch files
>> distributed along with the prosilica_camera package, however, work.
>
>> As for using the driver with the GC1020, I had to uncomment all calls to
>> cam_->setWhiteBalance(...) in prosilica_node.cpp to prevent the node
>> from getting stuck at this warning:
>>
>> Could it be that some Prosilica models don't support automatic white
>> balancing? Could the driver handle this case more gracefully?
>
> Making the setWhiteBalance call should be ticketed here:
> https://code.ros.org/trac/ros-pkg
>
> I think that you should be able to determine whether your camera has
> automatic white balance by playing around with SampleViewer in the
> prosilica_gige_sdk package. Are there attributes related to AWB, for
> example?
>
>> [ WARN] [1286554890.197190653]: Reconfigure callback failed with
>> exception Couldn't set white balance mode: Camera or attribute not
>> found:
>>
>>
>> The driver also complains about not being able to read the intrinsics
>> from the camera. This is just a warning and I suspect its origin is the
>> fact that no intrinsic parameters have been written to the user memory
>> area yet.
>
> Correct. This is normal until you calibrate the camera.
>
>> Another issue was caused by the default packet filter ("firewall")
>> configuration in Fedora which leads to the subtle failure mode where
>> communication on the control port works but no images get through. I
>> eventually figured this out but a warning in the wiki documentation
>> might be useful.

I'm experiencing this issue here now as well. The camera reponds on
pings, but ListCameras doesn't detect it. Same goes with the provided
SampleViewer application from prosilica: I find the camera on IP basis
- but the app is not listing it automatically. I've checked the wiki
page and followed all tutorials.
Can you give me any instructions on how to solve this problem?

Steven

>
> Since you are the only person who knows the specifics of this problem,
> it would be really useful if you put a few lines about the symptoms
> and how you solved the problem on the troubleshooting page:
>
> http://www.ros.org/wiki/prosilica_camera/Troubleshooting
>
> If you do not yet have an account, you can create yourself one.
>
>> Next on my list is getting two GC1020s to work in a stereo setup. I
>> don't know when I'll get around to that yet, though.
>
> Here I believe that your main problem will be getting the timestamps
> from the two cameras to exactly match. I have heard that there is a
> node to do this, but am not sure off-hand what it is called. It is on
> a non-WG repo.
>
> Blaise
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