Last week, MAKE ran a post on creating 3D models of buildings using an UAV. I wondered if the same thing could be done using an AUV (autonomous underwater vehicle). So I ran some experiments using our OpenROV! We took a waterproof digital camera to the touch pool at the aquarium in SF and shot a few videos of a starfish. We extracted some stills and used 123D Catch to generate the model seen here.
A longer explanation of the process can be found on the OpenROV blog.