ZED360 crashing and not showing skeletal data

Software
1

Hi there

Attempting to setup two cameras with 360 fusion.

Two ZED2i with jetsons xavier JETSON_L4T=35.4.1 over the network with SDK 5.1.2 running 360 senders.
Receiver running ZED360 on win 11 SDK 5.1.2 CUDA 13.

Sometimes zed360 just crashes when trying to setup the room. Sometimes it does not and adds both cameras in one spot. See attached image. When in calibration it does not show any bodies detected or moving and calibration saves no data.

these are snippets of the code with parameters on the senders:

InitParameters init_parameters;
init_parameters.camera_resolution = sl::RESOLUTION::HD720;
init_parameters.camera_fps = 30;
init_parameters.depth_mode = sl::DEPTH_MODE::NEURAL_LIGHT;
init_parameters.coordinate_system = sl::COORDINATE_SYSTEM::RIGHT_HANDED_Y_UP;
init_parameters.sdk_verbose = 1;

PositionalTrackingParameters positional_tracking_parameters;
positional_tracking_parameters.set_as_static = true;

BodyTrackingParameters body_traking_parameters;
body_traking_parameters.enable_tracking = false;
body_traking_parameters.enable_body_fitting = false;
body_traking_parameters.body_format = sl::BODY_FORMAT::BODY_18;
body_traking_parameters.detection_model = BODY_TRACKING_MODEL::HUMAN_BODY_FAST;

BodyTrackingRuntimeParameters body_tracking_rt;
body_tracking_rt.detection_confidence_threshold = 40;
body_tracking_rt.skeleton_smoothing = 0.7;

CommunicationParameters configuration;
returned_state = zed.startPublishing(configuration);

grab is in the main loop

Both senders are adding receiver:
[RTPSession\] Adding Receiver with IP: 10.30.30.141 ID 187110364

Screenshot 2026-01-26 165754
Screenshot 2026-01-26 1657541100×662 24.8 KB

Am I missing any crucial parameters on senders? Also is there a log or a way to see zed360 app log to see what is happening?

Last question does zed360 handle time sync of both jetsons or that has to be done as per your documentation Setting Up Multiple 3D Cameras - Stereolabs is this the missing bit in this chain?

Streaming camera SVO recording
2

Hi,

You should at least see the raw skeletons in 360 even if the calibration fails…

Can you first double check the senders are actually detecting someone? You can simply add a print in the main loop displaying the number of detections.

Your main loop should look like that :

    Bodies bodies;
    while (true) {
        // Grab images
        auto err = zed.grab();
        if (err == ERROR_CODE::SUCCESS) {
            // Retrieve Detected Human Bodies
            zed.retrieveBodies(bodies, body_tracker_parameters_rt);
            std::cout << "Nb of detections : " << bodies.body_list.size() << std::endl;
        } 
    }
3

Hi there,

I can confirm that senders are detecting and getting body count.

I have made two identical senders C++ and Python. From many tests, python senders do not crash ZED360, both adding the receiver. But all I can see is two cameras added to the ZED360 scene, no skeletons are showing, cameras are slightly moving around the scene.

C++ version senders are running, but when adding them in ZED360 sometimes only one sender gets added or second sender is added a second later and this is when ZED360 just crashes. C++ route is almost impossible to add senders. Python feel much more solid.

Also, what is important is to use configuration.set_for_local_network(port, ip) on each sender if this is not added ZED360 will never add senders and will always crash. Your sample code does not have this added.

Not sure what more can be debugged on my end. Can you please confirm that you can successfully setup this workflow from scratch on your end (2 jetsons via network with a PC receiver running ZED360) with latest SDK.

To add Jetsons running same SDK as PC 5.1.2 but Jetson’s CUDA is 11.4.315 as this is latest can run on Xaviers with Jetpack 5.1.2.

Thanks