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RT-studios / camera-pnpoint

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Bug Blender 3.2.1 #1

Open AndriyOrlov opened 2 years ago

AndriyOrlov commented 2 years ago

Hi. I'm have a bug if i recreate callibrate camera blender 3.2.1

Python: Traceback (most recent call last): File "C:\Users\Andre\AppData\Roaming\Blender Foundation\Blender\3.2\scripts\addons\camera_pnp__init__.py", line 74, in execute return camcalib(*getsceneinfo(self, context)) File "C:\Users\Andre\AppData\Roaming\Blender Foundation\Blender\3.2\scripts\addons\camerapnp\campnp.py", line 174, in camcalib ret, camintr, distcoef, , _ = cv.calibrateCamera(np.asarray([points3d], dtype='float32'), cv2.error: OpenCV(4.6.0) D:\a\opencv-python\opencv-python\opencv\modules\calib3d\src\calibration.cpp:1550: error: (-211:One of the arguments' values is out of range) Principal point must be within the image in function 'cvCalibrateCamera2Internal'

RT-studios commented 2 years ago

Hi, I cannot reproduce this issue, could you provide more details? which lens parameters where activated to calibrate, and did you edit any parameter manually in the Track/Camera tab? Thanks

AndriyOrlov commented 2 years ago

hi. yes. i can edit parameter manually. this error when I move the tracker and then click camera calibration

AndriyOrlov commented 2 years ago

this error, I don't know why, I seem to have done everything as usual, a collection with blanks and trackers, I first put 1 blank and 1 tracker and repeat as many times as necessary for the best result, before that i successfully set up about 10 cameras without errors, there were 230+ empty objects in the scene, i deleted them all and tried to set up a new camera and this error popped up

Python: Traceback (most recent call last): File "C:\Users\Andre\AppData\Roaming\Blender Foundation\Blender\3.2\scripts\addons\camera_pnp__init__.py", line 61, in execute return solvepnp(*getsceneinfo(self, context)) File "C:\Users\Andre\AppData\Roaming\Blender Foundation\Blender\3.2\scripts\addons\camera_pnp\campnp.py", line 102, in solvepnp ret, rvec, tvec, error = cv.solvePnPGeneric( points3d cv2.error: OpenCV(4.6.0) D:\a\opencv-python\opencv-python\opencv\modules\calib3d\src\sqpnp.cpp:242: error: (-215:Assertion failed) point_coordinate_variance >= POINT_VARIANCE_THRESHOLD in function 'cv::sqpnp::PoseSolver::computeOmega'

AndriyOrlov commented 2 years ago

image

and created many camers:)

RT-studios commented 2 years ago

Hi, this last error is new to me, but it sounds like the input points might be in an odd arrangement difficult to solve. If you can share an example file where I can reproduce the issue that would be super helpful. And by the way if you are trying to fine-tune one specific camera, make sure to select it before solving the pose, this way it will not create new cameras every time (unless that´s your intention of course ;-)