Async_image_retrieval problem?

[HMX2013]

Hello, my camera is ZED X mounted on AGX Orin (ZED SDK: 5.1.1).

I want to record the camera’s data in SVO2 and perform object detection at the same time. But there exists an FPS drop. I want to ensure the camera’s recording fps (over 50fps) and achieve object detection at 20~30fps. Finally, I found that setting “async_image_retrieval=true” can achieve this. But I got the follwing warning:

[2025-11-19 15:00:44 UTC][ZED][WARNING] InitParameters::async_image_retrieval contains a known issue that degrade performances and is automatically disabled for this version.
To force enable it, set the environment variable ZED_SDK_LIFT_ASYNC_IMAGE_RETRIEVAL_RESTRICTION to 1

So what is the degraded performance? I am not sure. Will you solve these problems in the future? This feature is very important for our project. We want to use just one camera to record data (for offline gait analysis) and object detection (or body tracking).

[Myzhar]

@HMX2013

So what is the degraded performance? I am not sure. Will you solve these problems in the future? This feature is very important for our project. We want to use just one camera to record data (for offline gait analysis) and object detection (or body tracking).

If you can achieve your goal, you can ignore the WARNING.
It means that the “degraded performance” issue is not affecting your setup.

In any case, it’s not recommended to perform heavy tasks like object detection while recording SVO files. This could lead to unwanted dropped frames.