MultiCamera Zed Fussion Issue

[sai_madhukar14]

Hi Stereolabs Team,

I am using three ZED 2i cameras connected to an RTX 3050 laptop via a powered USB 3.0 hub, and I am running ZED Fusion with the BODY_38 skeleton format for multi-camera body tracking.

I am facing two issues:

1. ZED 360 Calibration Inaccuracy – The calibration does not seem to produce accurate results. The fused skeleton shows noticeable misalignment between camera views even after a clean calibration in a well-lit environment.

2. Jittery Fused Skeleton – The skeleton keypoints, especially in the lower limbs, exhibit significant frame-to-frame jitter even when the subject is stationary. Per-camera tracking is much more stable by comparison.

My setup:

• 3× ZED 2i cameras, HD720 @ 30fps

• BODY_38 body format

• ZED SDK 5.2.2 with ZED Fusion

• RTX 3050 laptop, Windows 11

• Powered USB 3.0 hub (60W)

Could you suggest any fixes — whether software configuration changes or hardware improvements — to resolve these issues?

[Myzhar]

Hi @sai_madhukar14
Welcome to the StereoLabs community

@sai_madhukar14

ZED 360 Calibration Inaccuracy – The calibration does not seem to produce accurate results. The fused skeleton shows noticeable misalignment between camera views even after a clean calibration in a well-lit environment.

Please try to use the GitHub - stereolabs/zed-aruco: ZED SDK samples using ArUco tag detection · GitHub tool to check if you can obtain a better calibration

@sai_madhukar14

Jittery Fused Skeleton – The skeleton keypoints, especially in the lower limbs, exhibit significant frame-to-frame jitter even when the subject is stationary. Per-camera tracking is much more stable by comparison.

This is strictly related to the calibration issue.

[sai_madhukar14]

Thank you Myzhar for your help.

Will there be any problem with my Laptop as i am using a powered USB Hub and RTX 3050 laptop?