Search found 120 matches

by k.schauwecker
Fri Aug 16, 2019 6:20 am
Forum: Nerian Support Forum
Topic: Karmin Syncing Process
Replies: 6
Views: 34240

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: 39298

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...
by k.schauwecker
Thu Aug 15, 2019 6:43 am
Forum: Nerian Support Forum
Topic: Karmin Syncing Process
Replies: 6
Views: 34240

Re: Karmin Syncing Process

Hi Kieran, which synchronization are you referring to exactly? There are two different things that are happening: 1. The cameras exposure times are synchronized, such that both cameras record a frame at the same moment in time. This happens through the trigger cable, where SceneScan outputs a pulse ...
by k.schauwecker
Tue Jul 16, 2019 3:18 pm
Forum: Nerian Support Forum
Topic: depth error
Replies: 1
Views: 14171

Re: depth error

Hi, your equation is wrong. Z is computed by: Z = B*f / D so a delta in D will result in: delta_Z(D) = B*f / (D + delta_D) - B*f/D this delta is dependent on the disparity (and hence the depth) and is thus not linear but it increases with the depth. The solution is approximately quadratic for small ...
by k.schauwecker
Wed Jun 26, 2019 12:56 pm
Forum: Nerian Support Forum
Topic: daemon.err watchdogd: Can't find stereod PID file! Starting process!
Replies: 2
Views: 20540

Re: daemon.err watchdogd: Can't find stereod PID file! Starting process!

Hi Eren,

glad you fixed it yourself. If you run into any other problems please let me know.

Best regards,
Konstantin
by k.schauwecker
Wed Jun 26, 2019 12:54 pm
Forum: Nerian Support Forum
Topic: Network protocol changes in the new firmware update
Replies: 2
Views: 22813

Re: Network protocol changes in the new firmware update

Hi Aditya, we extended the protocol to support device parameter enumeration At the same time we extended the protocol header, which is the first transmitted network packet for each frame and includes meta information. Unfortunately these extensions break compatibility with older API releases. Hence ...
by k.schauwecker
Mon Jun 17, 2019 12:41 pm
Forum: Nerian Support Forum
Topic: SSP Troubleshooting
Replies: 6
Views: 41780

Re: SSP Troubleshooting

Hi Kieran, can you check that both cameras appear with "USB Speed Mode: SuperSpeed" in the advance cameras ettings (see screenshot). If it says HighSpeed for one camera then this would explain your frame rate problem. Did you leave the camera modules in the Karmin2 enclosure or put them in...
by k.schauwecker
Tue Jun 11, 2019 9:05 am
Forum: Nerian Support Forum
Topic: SSP Troubleshooting
Replies: 6
Views: 41780

Re: SSP Troubleshooting

Hi Kieran, 1) I had a look at the configuration file and this was set to RGB rather than Bayer. Did you change it back before downloading the file? I could get this configuration running with a SceneScan and Karmin2 unit. However, I'm concerned about the low throughput limit that is configured. Did ...
by k.schauwecker
Thu May 16, 2019 3:47 pm
Forum: Nerian Support Forum
Topic: Recommended Average Reprojection Error
Replies: 3
Views: 27756

Re: Recommended Average Reprojection Error

Hi Aditya,

96.8 x 79.4 is extreme wide angle (are you sure your FoV is this big?). At such configurations you need to expect somewhat higher reprojection errors. So I think you are within the range.

Regards
by k.schauwecker
Thu May 16, 2019 6:28 am
Forum: Nerian Support Forum
Topic: Left and right images with disparity
Replies: 1
Views: 11057

Re: Left and right images with disparity

Hi Jeremy, this is possible. You can record the raw input images or rectified images and then offline-process them. You can select the virtual network camera in the camera selection. Then you can use NVCom or our API to stream image data to SceneScan. I very much recommend using the TCP protocol in ...