Table of Contents
Advertisement
The Threshold Mode (TRSH)
In this mode the position of left (P
) and right (P
) edge of the laser beam profile are detected for a
L
R
given threshold value of intensity AOI_TRSH.
AO I_TRSH
P
P
P
L
TRSH
R
The position value of the laser line is approximated: P
= (P
+P
) / 2. In order to simplify the digital
TRSH
L
R
representation the division over 2 is not performed and thus an integer representation with one
subpixel is realised. The evaluation of 1088 rows delivers a position range from 0 to 2174 pixels (11 bit).
In threshold mode the camera can output either the left and right threshold position separately or
the subpixel position (P
+P
) and the line width (P
-P
). Moreover, the maximum intensity value can
L
R
R
L
be optionally output.
The precision of the position calculation can be improved by enabling the smoothing mode of the
FIR filter of the camera.
20
C2 Series User Manual Rev. 1.9
Hide quick links:
Advertisement
Table of Contents
Need help?
Do you have a question about the C2 Series and is the answer not in the manual?