ZED360 Terminating: Residual and Jacobian evaluation failed

[schluppsel]

I’m getting the error

trust_region_minimizer.cc:71 Terminating: Residual and Jacobian evaluation failed.

At the end of my ZED360 calibration cycles, resulting in failed calibration. I’m on SDK 4.1.4 and as mentioned in my other thread, I seem to not be able to upgrade.

The error only occurs occasionally and if it doesn’t show up, calibration works fine. However, I can not narrow down what circumstances trigger it and how to remove it besides turning everything off and on again until we’re fine. I’m currently stuck on calibrating a changed setup without any results due to it.

Timeout detected on camera [FUSION] and empty camera metrics

edit: We went further down back to SDK 4.1.4 where the calibration file had the old format and the whole setup works as expected now. Still wondering what caused the issues. We just ran the cpp fusion sample to have a look at the avatars and it seems like we have the same issue as when opening the calibration file in ZED360. The fusion behaves as if the three cameras were in one position, seeing three different people instead of one fused. So I assume something with the calibration is off, but…

[schluppsel]

It seems like it is triggered if only parts of a skeleton are tracked by the camera, e.g. at the edges or too close to it. I’m a bit surprised there are no previous results on the issues since it occured on various SDk versions and systems for us.