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6.6.2 NR menu
D & 3D NR is a very sophisticated and powerful noise reduction technology at low light.
DNR reduces noise with the spatial frequency for each field. The effect of DNR is limited because too strong
reduction in DNR results in loss of sharpness.
3DNR reduces noise by time based reduction with the several fields.
Too strong 3DNR reduction results in the tail effect of a comet or motion blur for the fast moving target in the dark.
To enter
NR
menu, press at
MAIN > NR.
2D&3D NR
Factory
Default
Descriptions
2DNR
ON
ON enables two dimensional noise reduction.
Noise Reduction is effective at low light.
3DNR
ON
ON enables three dimensional noise reduction.
Noise Reduction is effective at low light.
Starting or Ending of noise reduction with respect to light level can be set.
In 3DNR menu, START THRES sets the point from which level 3DNR starts while
the illumination goes dim. Higher setting makes 3DNR started at brighter light
level.
END THRES sets the point from which level 3DNR stops while the illumination goes
bright. Higher setting makes 3DNR ended at brighter light level.
DEPTH
80
DEPTH sets the strength of noise reduction for D&3D.
Higher setting stands for stronger reduction.
Too high setting will result in loss of sharpness in DNR and the tail effect of a
comet in 3DNR.
SMART NR
ON
Camera continuously monitors motion on the screen.
When NO motion is detected, 3DNR is automatically activated for the maximum
reduction of noise at low light. This will save more HDD in DVR.
3DNR becomes immediately deactivated for the smooth motion capture for
the moving target without the tail effect of a comet at low light if the motion is
detected.
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