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2019-01-25 10:20:57 -0500 commented question Correcting a spherical photo

To the best of my knowledge there isn't any distortion, it is simply the pose of the camera I'm correcting for. The pic

2019-01-25 04:21:29 -0500 asked a question Correcting a spherical photo

Correcting a spherical photo I have a set of spherical panoramic images that include roll, pitch and yaw along with the

2017-11-22 03:10:52 -0500 received badge  Enthusiast
2017-11-20 05:32:38 -0500 commented question Using OpenCV projectPoints to overlay real world data on a photo

Thanks again for the feedback, but I'm beginning to suspect there is something missing or incorrect from the extrinsic p

2017-11-17 11:39:39 -0500 commented question Using OpenCV projectPoints to overlay real world data on a photo

And not the rotation matrix ordering either, which leaves pretty much all possibilities I can come up with exhausted. s

2017-11-17 09:11:28 -0500 commented question Using OpenCV projectPoints to overlay real world data on a photo

Ok, with all the world coordinates as relative x,y,z offsets from a camera position of 0,0,0 inverting my rotation matri

2017-11-17 09:08:14 -0500 commented question Using OpenCV projectPoints to overlay real world data on a photo

Ok, with all the world coordinates as relative x,y,z offsets from a camera position of 0,0,0 inverting my rotation matri

2017-11-17 01:46:28 -0500 commented question Using OpenCV projectPoints to overlay real world data on a photo

Thanks Tetragramm, will try it out and post back.

2017-11-16 11:34:25 -0500 commented question Using OpenCV projectPoints to overlay real world data on a photo

@LBerger, thanks for that. It looks like the translation parameters are given in the image grid rather than the world g

2017-11-16 05:48:52 -0500 commented question Using OpenCV projectPoints to overlay real world data on a photo

I would have thought that the whole point of the translation and rotation was to align the world grid with the camera gr

2017-11-15 10:52:57 -0500 commented question Using OpenCV projectPoints to overlay real world data on a photo

Not sure, so order in which angles are multiplied into the rotation matrix could well be an issue. I've since tried wor

2017-11-15 04:37:27 -0500 commented question Using OpenCV projectPoints to overlay real world data on a photo

Z difference between ground and camera is about 2 meters as the camera is mounted on the roof of a vehicle.

2017-11-15 04:17:25 -0500 commented question Using OpenCV projectPoints to overlay real world data on a photo

Thinking if I compute a projection matrix from known world and corresponding image coordinates I can back compute rotati

2017-11-15 04:12:41 -0500 commented question Using OpenCV projectPoints to overlay real world data on a photo

Distance is of that order (0.7559m) which is correct. The object in question is a relatively small rectangular manhole

2017-11-15 04:07:29 -0500 commented question Using OpenCV projectPoints to overlay real world data on a photo

Thanks, I tried something similar and got very similar results, though 1000 times smaller . [0] {x=176.27936753046254 y

2017-11-15 04:07:09 -0500 commented question Using OpenCV projectPoints to overlay real world data on a photo

Thanks, I tried something similar and got very similar results, though 1000 times smaller . [0] {x=176.27936753046254 y

2017-11-15 04:06:47 -0500 commented question Using OpenCV projectPoints to overlay real world data on a photo

Thanks, I tried something similar and got very similar results, though 1000 times smaller. [0] {x=176.27936753046254 y=

2017-11-15 03:50:19 -0500 commented question Using OpenCV projectPoints to overlay real world data on a photo

These are Irish national grid coordinates given in metres.

2017-11-15 03:25:06 -0500 asked a question Using OpenCV projectPoints to overlay real world data on a photo

Using OpenCV projectPoints to overlay real world data on a photo I have a photograph and matching camera position (x,y,z