Camera Parameters: Difference between revisions
| Line 8: | Line 8: | ||
* Image Center \(\mathbf{o} = (o_x, o_y)\) | * Image Center \(\mathbf{o} = (o_x, o_y)\) | ||
* Size of pixels \(\mathbf{s} = (s_x, s_y)\) | * Size of pixels \(\mathbf{s} = (s_x, s_y)\) | ||
* Axis skew \(s\) typically 0 | |||
The formula for this matrix is: | The formula for this matrix is: | ||
| Line 14: | Line 15: | ||
M_{int} = | M_{int} = | ||
\begin{bmatrix} | \begin{bmatrix} | ||
-f/s_x & | -f/s_x & s & o_x\\ | ||
0 & -f/s_y & o_y\\ | 0 & -f/s_y & o_y\\ | ||
0 & 0 & 1 | 0 & 0 & 1 | ||
Revision as of 18:37, 18 June 2020
Camera Parameters
Intrinsics
The is the projection matrix which turns camera coordinates to image coordinates.
It consists of the following:
- Focal Length \(f\)
- Image Center \(\mathbf{o} = (o_x, o_y)\)
- Size of pixels \(\mathbf{s} = (s_x, s_y)\)
- Axis skew \(s\) typically 0
The formula for this matrix is: \[ \begin{equation} M_{int} = \begin{bmatrix} -f/s_x & s & o_x\\ 0 & -f/s_y & o_y\\ 0 & 0 & 1 \end{bmatrix} \end{equation} \]