JAI AD-081 Benutzerhandbuch

Now as Sensor A approaches its saturation point (512 – 1023 counts) the output uses the average of both sen-

sors’ data to “smooth” the transition between the two sensor response graphs (see Figure 6). It still limits 

the use of the lowest bits on Sensor B (those that are most susceptible to noise) and keeps the calibration 

factor at 64 to increase the output precision of the upper bits. 

Lastly, you can use the approach described in Example 3 to smooth the transition between two sensor output 

lines that have intentionally been given different slopes. This dual-slope arrangement can be used to com-

press or expand the dynamic range in a particular region of the luminance values -- similar to a look-up 

table, but over an expanded dynamic range as shown in Figure 7. 

To use this approach, overlap and calibrate the two sensor responses as in Example 2, as if a post-processing 

factor of 64 was going to be applied to the value of Sensor B. However, during post processing, apply a 

smaller multiplier for Sensor B, combined with a specific offset value, to create a “flatter” output line that 

intersects the output from Sensor A somewhere in the uppermost bit of its output graph.