Questions tagged [camera-intrinsics]
18 questions
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Mapping image to world coordinates, but getting homography matrix as a singular non invertible matrix
I am trying to map image coordinates to world coordinates for a particular dataset. I have the camera parameters available (both intrinsic and extrinsic). According to the equation, I need to take an inverse of the Homography matrix. However, when I…
Karan Shah
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how do I know which distortion coefficients to use from my calibration
So in the function below
Mat intrinsic = Mat(3, 3, CV_32FC1);
Mat distCoeffs;
vector rvecs;
vector tvecs;
calibrateCamera(object_points, image_points, gray_image.size(), intrinsic, distCoeffs, rvecs,…
user121903
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2D pixel coordinates to 3D world coordinates using opencv solvePnP
I saw a lot of similar questions, but not this exact one.
I know:
pixel coordinates (u,v) and depth (d) - 4 points
corresponding world coordinates (x,y,z) - 4 points
intrinsic matrix K of the camera (I didn't calibrate yet but used the camera…
meen
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