Search found 28 matches

by k.schauwecker
Mon Sep 02, 2019 7:39 am
Forum: Nerian Support Forum
Topic: Calibration Resolution
Replies: 1
Views: 97

Re: Calibration Resolution

Hi Kieran, it's not so easy to modify the YAML file, as you would have to convert both, the projection center and the measured focal length. I recommend calibrating at the resolution you are going to use. Please check the reprojection error that you get. For smaller image resolutions like the one yo...
by k.schauwecker
Thu Aug 29, 2019 6:43 am
Forum: Nerian Support Forum
Topic: Parallelizing Disparity Matching and ML
Replies: 2
Views: 88

Re: Parallelizing Disparity Matching and ML

Hi Kieran, I agree that the way the images are output at the moment is not very flexible. Unfortunately the system has been designed around the concept of always streaming out two images in parallel, and changing this now would require a lot of effort. Technically it would be possible to send the ra...
by k.schauwecker
Mon Aug 26, 2019 6:16 am
Forum: Nerian Support Forum
Topic: Notifications for new firmware
Replies: 2
Views: 139

Re: Notifications for new firmware

Hi Aditya,

I've added you to the release mailing list. Please apologize that you haven't been on the list already.

Regards,
Konstantin
by k.schauwecker
Wed Aug 21, 2019 1:04 pm
Forum: Nerian Support Forum
Topic: Auto Exposure in Adv. Camera Settings vs Auto Exposure Settings Tab
Replies: 2
Views: 281

Re: Auto Exposure in Adv. Camera Settings vs Auto Exposure Settings Tab

Hi Stefan, the settings on the advanced camera settings page are provided directly by the cameras. Cameras typically have the ability to perform auto-exposure, but normally we don't use this. The reason is that we don't want each camera to control it's exposure independently, but rather we want equa...
by k.schauwecker
Mon Aug 19, 2019 9:29 am
Forum: Nerian Support Forum
Topic: Karmin Syncing Process
Replies: 6
Views: 545

Re: Karmin Syncing Process

Hi Kieran, the cameras have an actual clock, but that clock is free-running. We estimate the time offset between the cameras' clocks and SceneScan's clocks. For each captured frame we add this offset and then check which trigger pulse time stamp matches the frame time stamp best. This is the time st...
by k.schauwecker
Fri Aug 16, 2019 11:25 am
Forum: Nerian Support Forum
Topic: New Firmware not compatible with current ros version
Replies: 7
Views: 625

Re: New Firmware not compatible with current ros version

There's an updated CMake file in the git repository that hopefully solves this problem.

Regards,
Konstantin
by k.schauwecker
Fri Aug 16, 2019 9:44 am
Forum: Nerian Support Forum
Topic: New Firmware not compatible with current ros version
Replies: 7
Views: 625

Re: New Firmware not compatible with current ros version

I'll check. I think there's something in our CMake script that we can do to improve this.
by k.schauwecker
Fri Aug 16, 2019 7:28 am
Forum: Nerian Support Forum
Topic: New Firmware not compatible with current ros version
Replies: 7
Views: 625

Re: New Firmware not compatible with current ros version

Do you have an older version of the libvisiontranfer library installed somewhere in a library search path?
by k.schauwecker
Fri Aug 16, 2019 6:20 am
Forum: Nerian Support Forum
Topic: Karmin Syncing Process
Replies: 6
Views: 545

Re: Karmin Syncing Process

Hi Kieran,

the cameras themselves have a clock, and we synchronize this clock to SceneScan's internal clock. We also keep a timestamp history of the most recent trigger pulses. Hence, we can then match a trigger pulse to a received frame.

Best regards,
Konstantin
by k.schauwecker
Thu Aug 15, 2019 12:00 pm
Forum: Nerian Support Forum
Topic: New Firmware not compatible with current ros version
Replies: 7
Views: 625

Re: New Firmware not compatible with current ros version

Sorry, you are right. The ROS node was a little bit behind. The new version in the git repository is now compatible: https://github.com/nerian-vision/nerian_stereo A new release build has been triggered. Usually it takes a couple of days until new release packages are available on the ROS package se...