All Questions
Tagged with computer-vision camera-calibration
9
questions with no upvoted or accepted answers
3
votes
0
answers
892
views
Reprojecting an image to another viewpoint using planar homography
I have an image rendered by a simulated camera in Unity. Using this image and the known (virtual) camera pose it corresponds to, I would like to render a new image from another viewpoint. Having read ...
- 429
3
votes
0
answers
814
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Correct Fish Eye camera Radial Distortion and blurry effect at the image edges
There are a lot of questions regarding this topic ,but I am trying to get a more clear picture from these questions.
I am trying to calibrate a fish eye camera and I am using OpenCV omnidir class ...
- 131
3
votes
1
answer
265
views
How should calibration points be distributed?
I do camera calibration for a single camera with a chessboard pattern in opencv for the first time.
The focus is fixed.
I'm not sure how to do it, there seems to be many questions:
How many images ...
- 252
1
vote
0
answers
130
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calibrating camera using 3d objects such as rubik's cube?
Hello all hope everyone is doing fine.
I have a vision related problem where I want to calibrate my camera using a 3d object such as rubik's cube with known dimensions. I have a cube with 60mm length, ...
- 11
1
vote
0
answers
70
views
How is focal length estimated?
There are a number of approaches to calibrate cameras. In this process you estimate the intrinsic parameters using a checkerboard of known size.
I'm confused on how the focal lengths are found. The ...
- 854
1
vote
0
answers
140
views
Extrinsic Camera Parameters without introducing control points?
I am new to the field of Camera Calibration. We have successfully calibrated our camera through classic method (using checkerboard etc).
I recently realized there is a field of research for Automatic ...
- 1,976
0
votes
0
answers
47
views
Equation of line in the Homogeneous coordinate system
Given two points P and Q we can convert them to the homogeneous coordinate system, compute their cross product and thus get the ...
- 167
-1
votes
1
answer
41
views
Best targets to calibrate camera with long focusing distance
I am currently using a number of cameras with long focusing distance, i.e. >3m, and I want to calibrate them to find the intrinsic matrix.
My problem is that if I want to cover all or most of the ...
- 111
-1
votes
1
answer
159
views
camera calibration change orientation of axis
I want to solve for the extrinsics by using direct linear transformation on corresponding 3D LIDAR points and 2D camera points. I already have the intrinsics.
Problem is, points behind the camera ...
