2 usb cameras not working with opencv

by

The typical reason for 2+ USB cameras to not work together (still they might be working fine separately) is that USB bandwidth is insufficient for them both to run simultaneously. There is a bandwidth limit, which is rather low: The maximum throughput of an isochronous pipe (which is usually used for video) is 24MB/s.

More on this issue:

More Related Contents:

  1. opencv c++ Edge detection to find edge that the top of it is white and the bottom is black
  2. How to verify the correctness of calibration of a webcam?
  3. opencv drawing a 2d histogram
  4. Computing camera pose with homography matrix based on 4 coplanar points
  5. How to capture the desktop in OpenCV (ie. turn a bitmap into a Mat)?
  6. Displaying stitched images together without cutoff using warpAffine
  7. Configuring an c++ OpenCV project with Cmake
  8. Could not find module FindOpenCV.cmake ( Error in configuration process)
  9. ‘unresolved external symbol’ error when linking with OpenCV 3.0
  10. sift = cv2.xfeatures2d.SIFT_create() not working even though have contrib installed
  11. CMake Error: Variables are set to NOTFOUND
  12. MinAreaRect angles – Unsure about the angle returned
  13. OpenCV / SURF How to generate a image hash / fingerprint / signature out of the descriptors?
  14. Why cv2.so missing after opencv installed?
  15. How to load png images with 4 channels?
  16. OpenCV as a static library (cmake options)
  17. Filling gaps in shape edges
  18. Why can’t I open avi video in openCV?
  19. Can’t access webcam with OpenCV
  20. cv2.imshow() function is opening a window that always says not responding – python opencv
  21. How to use Bazel to build project uses OpenCV [closed]
  22. OpenCV Mat element types and their sizes
  23. initialize an OpenCV Mat with an 2D array
  24. Are there any fast alternatives to SURF and SIFT for scale-invariant feature extraction?
  25. OpenCV with GigE Vision Cameras [closed]
  26. Superimpose heatmap on a base image OpenCV Python
  27. How is the camera coordinate system in OpenCV oriented?
  28. How to detect ellipses in image without using fitEllipse() in opencv?
  29. Q matrix for the reprojectImageTo3D function in opencv
  30. How can I get ellipse coefficient from fitEllipse function of OpenCV?

Leave a Comment