Hi everyone, I'm chewing over a potential project for the summer that would involve extracting information from a swimming pool. The idea is that participants create music and localized visual projects by splashing. I'm thinking that performing motion tracking on the waters surface from above might be one way to achieve this but I'm unsure how effective it would be. The project is aimed at young physically disabled participants and the idea is that their x-y position in the pool is observed from above and that when they create ripples or splashes that this will create audio and localized visual projections that vary depending on their position in the pool. At the moment I just looking for ideas and objects that might be worthy of exploration. Having underwater microphones is also a possibility. Many thanks in advance!