166 CONTENTS
Figure 2: Piece-wise linear signal
19.4.2.2.1 Description
Exposure ratios are set programatically. Two rations are used: R1 = T1/T2 and R2 = T2/T3.
Increasing R1 and R2 will increase the dynamic range of the sensor at the cost of lower signal-to-noise ratio (and
vice versa).
19.4.2.2.2 Possible settings
Possible settings of the mvBlueFOX-x02d in HDR mode are:
• "HDREnable":
– "Off": Standard mode
– "On": HDR mode on, reduced amplification
*
"HDRMode":
· "Fixed": Fixed setting with exposure-time-ratios: T1 -> T2 ratio / T2 -> T3 ratio
· "Fixed0": 8 / 4
· "Fixed1": 4 / 8
· "Fixed2": 8 / 8
· "Fixed3": 8 / 16
· "Fixed4": 16 / 16
· "Fixed5": 16 / 32
MATRIX VISION GmbH
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