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| 2018-05-04 02:31:17 -0600 | asked a question | Strange ArUco behavior / OpenCV SolvePnp Strange ArUco behavior / OpenCV SolvePnp Hi There, I tested the accuracy of ArUco markers in severeal distances and use |
| 2018-02-28 04:57:04 -0600 | asked a question | How can I get the accuracy between two angles (euler or other)? How can I get the accuracy between two angles (euler or other)? Hi Together, I have a board of marker and detect their |
| 2018-01-24 02:17:55 -0600 | commented question | Aruco Detection - OpenCV Error: Incorrect size of input array Thank you. That was the problem :). (Sometimes the little things are the worst in programming :D ) |
| 2018-01-23 08:53:19 -0600 | asked a question | Aruco Detection - OpenCV Error: Incorrect size of input array Aruco Detection - OpenCV Error: Incorrect size of input array Hi There, I try to detect my ArUco markers with this post |
| 2017-12-30 05:31:03 -0600 | marked best answer | What is the focal length for computer generated pictures? Hi there, I am generated some rotated ArUco markers in MatLab and want to get the rotation as normal with OpenCV and C++. The detection algorithm needs of course the camera matrix and the distortion model. The distortion model is easy to have for a perfect camera should be k1,k2,p1,p2,k3 = 0, am I right? The camera matrix offers me a bigger problem... what ist the focal length f (I assume fx=fy). I set the displacements zero: c=cx=cy=0. Now my Camera Matrix should be something like that: M= [ f, 0, 0; Can anybody tell me, what focal length should be used? In meanwhile I tried to calibrate it with a perfect picture of the (in my case) CharUco Board. (For the CharUco board is an additional avg_reprojection_error, I guess this should be also 0?) I hope you can help me :) Greetings Sarah |
| 2017-12-30 05:31:03 -0600 | received badge | ● Scholar (source) |
| 2017-12-30 03:48:40 -0600 | commented answer | What is the focal length for computer generated pictures? Thank you very much!!! That is exactly what I am looking for and it worked perfectly :-). Do you know how to handle with |
| 2017-12-30 03:45:45 -0600 | commented answer | What is the focal length for computer generated pictures? Thank you very much!!! That is exactly what I am looking for and it worked perfectly :-). |
| 2017-12-30 03:04:42 -0600 | received badge | ● Enthusiast |
| 2017-12-29 10:34:42 -0600 | edited question | What is the focal length for computer generated pictures? What is the focal length for computer generated pictures? Hi there, I am generated some rotated ArUco markers in MatLab |
| 2017-12-29 10:34:15 -0600 | edited question | What is the focal length for computer generated pictures? What is the focal length for computer generated pictures? Hi there, I am generated some rotated ArUco markers in MatLab |
| 2017-12-29 10:00:42 -0600 | asked a question | What is the focal length for computer generated pictures? What is the focal length for computer generated pictures? Hi there, I am generated some rotated ArUco markers in MatLab |
| 2017-12-13 09:29:27 -0600 | commented question | Why is the Charuco Board Calibration so much better against a flipping Z-Axis then the normal OpenCV chessboard? A big thank to you! I hope it will help other people to calibrate with CharUco instead of the "normal" chessboard :) |
| 2017-12-13 07:13:53 -0600 | commented question | Why is the Charuco Board Calibration so much better against a flipping Z-Axis then the normal OpenCV chessboard? Thank you for your response. I am not able to post a picture but I am uploaded it here: http://www.bilder-upload.eu/sho |
| 2017-12-13 07:12:01 -0600 | edited question | Why is the Charuco Board Calibration so much better against a flipping Z-Axis then the normal OpenCV chessboard? Why is the Charuco Board Calibration so much better against a flipping Z-Axis then the normal OpenCV chessboard? Hi Toge |
| 2017-12-13 07:10:52 -0600 | received badge | ● Editor (source) |
| 2017-12-13 07:10:52 -0600 | edited question | Why is the Charuco Board Calibration so much better against a flipping Z-Axis then the normal OpenCV chessboard? Why is the Charuco Board Calibration so much better against a flipping Z-Axis then the normal OpenCV chessboard? Hi Toge |
| 2017-12-12 03:38:18 -0600 | asked a question | Why is the Charuco Board Calibration so much better against a flipping Z-Axis then the normal OpenCV chessboard? Why is the Charuco Board Calibration so much better against a flipping Z-Axis then the normal OpenCV chessboard? Hi Toge |
| 2017-12-11 10:10:40 -0600 | commented answer | Charuco Camera Calibration from video - console always close immediatly, why? Ok, now it works. With the console it always told me: "Not enough captures for calibration" and does not open the video |
| 2017-12-11 06:05:09 -0600 | commented answer | Charuco Camera Calibration from video - console always close immediatly, why? Ok, now it works. With the console it always told me: "Not enough captures for calibration" and does not open the video |
| 2017-12-06 09:17:15 -0600 | asked a question | Charuco Camera Calibration from video - console always close immediatly, why? Charuco Camera Calibration from video - console always close immediatly, why? Hi Together, I am tryinig the last days t |