Questions tagged [matrix]
The matrix tag has no usage guidance.
5
questions
-1
votes
1answer
102 views
The modulus of each columns of the rotation matrix is
The modulus of each columns of the rotation matrix is
1, 0.5, 0.866 or 1.366
which one is correct?
1
vote
1answer
62 views
Questions about time derivative of jacobian matrix
I find that in some robotic toolboxs(e.g. FROST https://ayonga.github.io/frost-dev/index.html) they use
to calculate time derivative of jacobian matrix.
Here is my guess about the reason of using ...
0
votes
0answers
19 views
When a permutation matrix is desired for transforming camera frame to world frame?
When dealing with rectified images, why would the inverse of a simple permutation matrix $$P =
{\begin{bmatrix}
0 & -1 & 0 \\
0 & 0 & -1 \\
1 & 0 & 0
\end{bmatrix}}^{-1}$$
...
1
vote
0answers
38 views
Caculate/Specify the covariance matrix for a omniwheel robot
I have an omnidirectional robot (x, y and rotation around z), which I would like to use the SLAM-algorithm from ROS. But the odometry from the robot has a drift, which makes some error. To improve the ...
1
vote
1answer
121 views
Conveyor Belt Calibration for a Robot - Rotation Matrix
Short Question:
As demonstrated in the image below, how can I calculate the rotation matrix that relates the base coordinate and the rectangle coordinate, given 3 known points P1, P2, P3 on the ...
