Video recognition of surface wave profile in a channel with transparent walls

In laboratory experiments with waves on the surface of water, measuring the height at a single point is not always sufficient, for example when using a string wave recorder. The paper proposes a method for analyzing the wave profile - the relationship between height, time, and position. For this method to be effective, the wave profile must be visible, for instance, through a transparent wall or from above the water's surface. Additional equipment required for this method includes a video camera, underwater lights, and a measuring tape. A good match is achieved (the algorithm recognizes what the human eye can see) and there is a match in the waveform spectrum.