Astra can't recognized in linux

Technical Support & Q&A
1

  1. I have two devices, astra and Astra Stereo S U3
    Astra Stereo S U3 can detect video devices ls / dev /,but Astra cannot
    So I can’t use cv2.VideoCapture(0) to open camera streaming Color image
    Error:
    VIDEOIO ERROR: V4L: can’t open camera by index 0

    lsusb.png1175×645 380 KB

  2. If I use Astra Stereo S U3 and openni
    Error:
    raise OpenNIError(res, msg.strip(), logfile)
    openni.utils.OpenNIError: (OniStatus.ONI_STATUS_ERROR, ‘’, None)

  3. Is it possible to stream color and depth images at same time using openni in Python?
    If using astra and openni I can already get color and depth frames and depth stream

2

Run the following command and notice the cameras and indices:
v4l2-ctl --list-devices

Using Python, OpenNi2 and OpenCV you can stream color and depth simultaneously from Astra Stereo S.

At the moment I find some problem in synchronizing depth and color stream. I don’t know how to synchronize depth frame capture using OpneNi and RGB frame captured using OpenCV.