PHOTONIS Nocturn - Figure 13 GUI AGC Controls Tab

37 | User Reference Guide NOCTURN XL Camera
NVT 200-LC-0103
Revision: D
Page 37 of 43
 Frames to Avg.- Number of frames averaged to compute AGC statistics and update both the
exposure and gain settings of the sensor.
 Saturation Level- Bin number (on 10 bit scale) used to determine if a pixel is saturated.
 AEC Gain- Maximum exposure increase (in percentage) from the current value when updating
the sensor exposure setting.
 AEC Attenuation- Maximum exposure decrease (in percentage) from the current value when
updating the sensor exposure setting.
 Update Interval- Determines how often the AGC settings are updated based on the number of
time a new image histogram is calculated.
Figure 13 GUI AGC Controls Tab
 Min. Brightness- Minimum acceptable value of the “Cumulative Histogram” max percentage. If
the “Cumulative Histogram” max percentage value is lower than the “Min. Brightness” the AGC
algorithm will update the sensor exposure and gain accordingly.
 Target Brightness- Target value for the “Cumulative Histogram” max percentage used to
calculate sensor exposure and gain settings when the “Cumulative Histogram” max percentage
value is either below the “Min. Brightness” or above the “Max Brightness” values.
 Max. Brightness- Maximum acceptable value of the “Cumulative Histogram” max percentage.
If the “Cumulative Histogram” max percentage value is higher than the “Max. Brightness” the
AGC algorithm will update the sensor exposure and gain accordingly.
 Low Gain Min. Int.- Minimum integration time value (in number of lines) used by the AGC to
recalculate new exposure setting in the low gain mode.