USB connection with RICOH THETA is suddenly disconnected: THETA UVC Blender Status:0x800705AA:

Question

I apologize but I’m hoping someone here can help.

I have connected the THETA S to my laptop with a USB cable to acquire images on a Python program, but after a few minutes to a few dozen minutes of standing, I am unable to acquire images.

Python program

import cv2

# Set device ID to 2 to get converted images from THETA.
cap = cv2.VideoCapture(2)
while True:
  ret, image = cap.read()
  if not ret:
     break

  cv2.imshow("ok", image)
  if cv2.waitKey(1) & 0xFF == ord("q"):
     break

After the disconnection, this is the image that will be entered.

THETA UVC Blender Status:0x800705AA:

Anyone can give me their opinion.

It may have something to do with the fact that the USB cable is 5 meters long, but so far we are dealing with the following on a Windows PC.

• Disable the USB selective suspend setting.
• Set the power option to High Performance.

Answer 1

it appears as though you have basic errors with your code.

for a start args was never defined, so the given code throws and error on this line.

Here is a basic working script to get a camera working:

import cv2

# Open the camera
camera = cv2.VideoCapture(0)

while True:
    # Get a frame from the camera
    ret, frame = camera.read()

    # Display the frame
    cv2.imshow("Camera", frame)

    # Exit the loop if the 'q' key is pressed
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

# Release the camera and close the window
camera.release()
cv2.destroyAllWindows()

The above works on my windows10 laptop with python3.10 and latest cv2 version.