0:51 1:16 4 coordinate systems 1:56 camera location 3:48 formula interpretation 4:06 not invertible b/c info loss from 3D to 2D (given a 3D point, we can use the calculated P to get the corresponding 2D point, but given a 2D point, we cannot use P to get the corresponding 3D point b/c loss of info) 4:44 can partially invert with a 1D solution space 4:51 5:07 5:13
I have a question, maybe you can give me a hint how I have to continue. I use a camera and can detect my aruco marker. The camera is calibrated and I have the camera matrix (intrinsics), distortion coefficients and the rotation & translation vector (extrinsic). And by the aruco functions I can detect the center of my aruco marker in the given image. But HOW can I caluclate the x,y coordinates of the marker in real world coordinates by the given parameters??? I dont get it :D I want to now when I make pic1, than move the marker, do pic2, I want to know how many mm in the real world the aruco marker moved in the x-y layer. And the distance to the object is not constant. But I do not want to know the distance. I just want to get accurate x,y coordinates. Thanks for your great video collection by the way!