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Ripple Filter (Option) The ripple filter is a filter which reduces false alarms caused by diffuse reflections of lights from ripples on the surface of lakes or ponds.
In the right side image, the ripple filter is not applied and the system raises the false alarms as enclosed with the red frame because the noise of diffuse reflection appears as green dots. In the image of left side, the filter is valid and the waterfowls are detected because the noises are reduced.
When a waterfowl appears at the surface of the water, the system detects it, raises alerts and encloses it with the red frame. (In a center of the screen at left) The water surface condition differs by site, and adjustments for respective condition are required. |
