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sean-afshar avatar sean-afshar commented on July 22, 2024

Just following up on this @oliver-batchelor @ardiya .

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chunniunai220ml avatar chunniunai220ml commented on July 22, 2024

Just following up on this @oliver-batchelor @ardiya .

I have leaned from web, but. I got another error:
cv2.error: OpenCV(4.5.2) /private/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/pip-req-build-7jsmxh8y/opencv/modules/calib3d/src/calibration.cpp:3350: error: (-210:Unsupported format or combination of formats) objectPoints should contain vector of vectors of points of type Point3f in function 'collectCalibrationData'

and. my board.yaml as follow:
boards:
charuco_11x16:
type: charuco
size: [11, 16]
aruco_dict: 4X4_1000

square_length: 0.025
marker_length: 0.01875

min_rows: 3
min_points: 20 

print the board.image on A3
the more images in cam file, the more accurate calibration?

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ericleonardis avatar ericleonardis commented on July 22, 2024

What is the explicit usage of the rotation matrix, intrinsics matrix, translation vector, and distortion parameters? For example, let us denote the intrinsics matrix, rotation matrix, translation vector as camera A as K, R, and t respectively. Is the proper camera matrix calculation K[R | t] or K[R^{-1} | R^{-1}t]? Furthermore, how do you transform from the world frame to another camera frame properly? Given world frame coordinates for an object, X, is the transformation to the camera frame RX + t, R(X + t), R^{-1}(X +t), etc...? Also, which distortion parameters correspond to tangential and radial distortion etc...?

I am also wondering the same thing.

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