Baumer SXC21 Manual do utilizador - Página 28

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Baumer SXC21 Manual do utilizador
Figure 21 ►
Partial Scan:
Read out Lines.
Figure 22 ►
Partial Scan:
Example  ROI's  with 
identical readout times.
Figure 23 ►
Partial Scan:
Read out time linked
with position of the ROI.
28
Pixel Information of Interrest
Discarted Pixel Information
The most significant reduction of the readout time – compared to a full frame readout in 
dual mode – can be achieved if the ROI is positioned as follows:
▪
within one of the sensor halves
▪
symmetrically spread to both sensor halves
For example, the readout time of the ROI's in the figures 21 and 22 is the same. 
On asymmetrically spread ROI's, the readout time is affected by the bigger part of the 
ROI.
An example for this fact is shown in the figure below:
The ROI has the same size as in figure 21, but is not symmetrically spread to both sen-
sor halves. In this special case the time for the readout of the same number of pixels is
increased by 50%, caused only by ROI's position.
ROI
Read out Lines