Version: 20210708
17
For optimized smoke and flame detection performance, the camera should be configured with following
recommended settings (mandatory settings are followed by mandatory):
•
Image
o
Wide dynamic range
▪
WDR: recommended OFF to avoid image artefacts.
Only use when required (e.g. environment with non-uniform lighting) and no artefacts
are generated by WDR.
▪
Local contrast: 50
▪
Tone mapping: max 30 (mandatory)
1
o
White balance:
▪
Light environment: Automatic
o
Day and night:
▪
IR-cut filter: ON or AUTO
Warning:
When the IR-cut filter is on AUTO, the camera will switch to infrared mode
when the light level is too low. This will disable the flame detection as for flame
detection a colour image is required.
▪
Threshold: Free to choose.
o
Exposure:
▪
Exposure mode: Automatic
▪
Exposure zone: Automatic
▪
Maximum shutter: 1/15s (mandatory)
1
▪
Maximum gain: max 21 dB (mandatory)
1
▪
P-Iris lens: make sure to select the correct lens
▪
Blur-noise trade-off:
Middle between ‘low noise’ and ‘low motion blur’
. In low light
circumstances, set to ‘low noise’
▪
Lock aperture: ON
▪
Target aperture:
Middle between ‘open’ and ‘closed’
▪
Exposure level: 50
▪
Defog: off (mandatory)
o
Image correction:
▪
Barrel distortion correction (BDC): only if necessary
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Electronic image stabilization (EIS): only if necessary
o
Capture mode: 1080p @ 25/30 fps (WDR) (exact description may differ, depending on your
camera model, make sure that the aspect ratio is 16:9 and WDR is included)
•
Stream
o
General:
▪
Resolution: always select a 16:9 or 9:16 resolution (mandatory)
▪
Frame rate: > 0
•
If no recording on SD card: free to choose
•
If recording on SD card: maximum 4 (mandatory)
▪
Compression: 50
o
H.264 and H.265 encoding:
▪
Free to choose
o
Audio:
▪
Free to choose
1
If in low-light conditions the image does not reach the required image quality, please adjust in this order: 1. shutter
time 2. gain 3. tone mapping. A higher shutter time may cause more motion blur, but this does not affect the
detection. A higher gain will cause more noise in the image which may interfere with the detection algorithm. A higher
tone mapping will change the colors and will influence the flame detection.
