For my event project, I am largely interested in investigating things that happen underwater. I have two possible methods for capture-

  1. Depthkit underwater. I am constructing a polycarbonate underwater housing for the kinect v1 (1414), so that I may capture RGBD video underwater in the pool. I am especially curious to see how bubbles rising will appear in RGBD, so I will work on capturing a few different scenarios: person splashing into pool, creating many chaotic bubbles (medium distance shot); person holding their breath underwater, slowly releasing bubbles (close up shot); releasing bubbles from container (close up shot, no people only bubbles).
    1. The main uncertainty with this project is the great attenuation of near-IR wavelengths in water- the depth sensing abilities of the kinect will be quite compromised. I am hoping that the system will at least be usable within distances of ~1m.
  2. Sonar slitscan depth mapping. Using a sonar pod marketed to fisherman for “fishfinding,” I would like to create a sonar depthmap (bathymetric map) of local bodies of water. I have scouted out locations and will most likely use the Squaw Valley Park pond (known RC boating spot) for initial tests, and then take the system into non-manmade locations like North Park for richer mapping opportunities. The pod delivers a graph of the recorded sonar response over time, so I will systematically tow it using a RC boat in a grid pattern to obtain the bottom contours of the lake.
    1. My main concern with this project is the terrible online reviews of these pods. Depending on the model, they connect over bluetooth or a wifi hotspot, and many online reviewers state that the connection drops frequently or will not connect at all.