Camera stream failed to start error - Virtual Stereo Camera Setup w/ 2 ZED Xone GS 4mm

Software Python
, ,
1

I was able to complete calibration, but can’t seem to open the virtual stereo camera in my code. It returns an error “camera stream failed to start.”

The calibration file was copied to the Zed Settings folder, and the number generated during calibration is what I used as the virtual stereo number in the code which is attached here.
vstereo_test2.py (1.6 KB)

Hardware

Jetson Xavier AGX.

2x ZED X One SG with 4mm lens.

Duo capture card

Software
ZED SDK 5.2.3
driver 1.4.1
Jetpack 5.1.2
Ubuntu 20.04

Diagnostic checks
Ran ZED_Explorer -all in terminal.

trackernano@ubuntu:~$ ZED_Explorer -all

Cam 0

Model : “ZED XOne GS”
S/N : 305072903
State : “AVAILABLE”
Path : /dev/i2c-9
ID : 0
Port : 0
Type : “GMSL”

Cam 1

Model : “ZED XOne GS”
S/N : 307352076
State : “AVAILABLE”
Path : /dev/i2c-10
ID : 1
Port : 1
Type : “GMSL”

Ran diagnostic check. Results are here.
ZED_Diagnostic_Results.json (23.2 KB)

2

Hi @ravishing833
Welcome to the StereoLabs community.

Can you please verify if it works using the C++ code of the stereo_reprojection_viewer application?

3

Yes. It said it detected the virtual camera and opened it!
Here is the terminal printout.
tracker1@xavieragx:~/Downloads/zed-opencv-calibration/build/stereo_reprojection_viewer$ ./zed_reprojection_viewer --virtual --left_sn 305072903 --right_sn 307352076

  • Virtual Stereo Camera mode enabled.
  • Using serial numbers for left and right cameras: 305072903, 307352076
  • Unique Virtual SN: 115258193 (Generated by the ZED SDK)
  • ZED X One GS Virtual Stereo Camera detected.
    Distortion Coefficients:
    [-3.654500007629395, 5.207950115203857, 0.0007962050149217248, -0.0006751129985786974, -1.698539972305298, -3.578690052032471, 4.964210033416748, -1.406489968299866, 0, 0, 0, 0]

I also attached a screen shot.

screenshotXavier
screenshotXavier1920×1080 347 KB