Computing x,y coordinate (3D) from image point

by

Given your configuration, errors of 20-40mm at the edges are average. It looks like you’ve done everything well.

Without modifying camera/system configuration, doing better will be hard. You can try to redo camera calibration and hope for better results, but this will not improve them alot (and you may eventually get worse results, so don’t erase actual instrinsic parameters)

As said by count0, if you need more precision you should go for multiple measurements.

More Related Contents:

  1. Camera pose estimation (OpenCV PnP)
  2. How to verify the correctness of calibration of a webcam?
  3. Get 3D coordinates from 2D image pixel if extrinsic and intrinsic parameters are known
  4. opencv c++ Edge detection to find edge that the top of it is white and the bottom is black
  5. Detect semicircle in OpenCV
  6. opencv drawing a 2d histogram
  7. Computing camera pose with homography matrix based on 4 coplanar points
  8. How to capture the desktop in OpenCV (ie. turn a bitmap into a Mat)?
  9. Displaying stitched images together without cutoff using warpAffine
  10. Configuring an c++ OpenCV project with Cmake
  11. sift = cv2.xfeatures2d.SIFT_create() not working even though have contrib installed
  12. How to reduce number of classes in YOLOv3 files?
  13. CMake Error: Variables are set to NOTFOUND
  14. MinAreaRect angles – Unsure about the angle returned
  15. OpenCV / SURF How to generate a image hash / fingerprint / signature out of the descriptors?
  16. Sift implementation with OpenCV 2.2
  17. Why cv2.so missing after opencv installed?
  18. How to load png images with 4 channels?
  19. OpenCV as a static library (cmake options)
  20. Filling gaps in shape edges
  21. Can’t access webcam with OpenCV
  22. cv2.imshow() function is opening a window that always says not responding – python opencv
  23. How to use Bazel to build project uses OpenCV [closed]
  24. OpenCV Mat element types and their sizes
  25. initialize an OpenCV Mat with an 2D array
  26. Superimpose heatmap on a base image OpenCV Python
  27. How to detect ellipses in image without using fitEllipse() in opencv?
  28. Q matrix for the reprojectImageTo3D function in opencv
  29. How can I get ellipse coefficient from fitEllipse function of OpenCV?
  30. Preprocessing image for Tesseract OCR with OpenCV

Leave a Comment