Data preprocessing overview. (IMAGE)
Caption
Data preprocessing overview. The original lidar data (far left) were first run through an algorithm that detected and smoothed the surface of the water (dashed red line). Once the surface was detected, surface correction was applied to compensate for changes in airplane elevation, and data above the surface of the water were removed. Finally, the depth of the image was adjusted based on the lidar's penetration depth or prior knowledge about the expected depth of fish.
Credit
Vannoy et al.
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