Echoview allows you to detect schools from single beam data, obtained while cruise scanning.
The resulting schools can be viewed as 2D regions on echograms. The properties of 2D regions can be seen on the Region Browser dialog box.
A single edge detection algorithm is available for use on single beam data.
In the example below, three schools are displayed along with the water surface and sea bottom. The three schools were detected using different threshold settings. The school on the right is selected.
Note: You can also import 2D regions from .evr files, see Importing regions for more information.
Schools detection module
Using the schools module
About 3D schools detection