Abstract
Recently, various underwater vehicles, which are the useful tool to progress global important issues in relation strongly to the ocean, have been developed. Some of them are used to survey the condition of seafloor. They are equipped with some kinds of optical sensors. They take images of seafloor in order to clearly find significant points and measure the geometric information of them. One of methods to realize that is a stereo vision technology. In this paper, an underwater stereo vision system to visualize deep-Seabed three-dimensionally is described.