Dalsa Z-Trak2 2K Series User Manual page 68

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HDR Response Mode. Activates HDR and specifies the knee point, i.e., the point at which the sensitivity of
the image sensor decreases, as depicted with the HDR knee point mid/high in the figure below.
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HDR Response Factor. Acts on the slope after the knee point to further reduce sensor sensitivity: the higher
the response factor, the less sensitive the sensor.
Figure 25. Depiction of the sensitivity curve of a sensor, with and without HDR. With HDR, saturation occurs at higher
illumination, as compared with no HDR.
Figure 26. Depiction of the effect of the HDR Response Factor on a sensitivity curve. A value of 50 takes approximately 5
times more luminance to reach saturation than a factor of 10. (Graph not to scale.)
60 • How to Configure Z-Trak Sensors Using Z-Expert
Sensitivity curve, effect of HDR Response Factor
Sensor saturation
HDR Response Factor 5
HDR Response Factor 30
HDR Response Factor 50
Illumination
Teledyne Vision Solutions
Z-Trak Family of 3D Sensors