抄録
In recent years, many researchers try to observe the state of global environment from sea information for understanding of global environment change. First, we introduce the recording system of underwater environment which is made by authors. By using this system, we want to observe the change of sea environment such as coral bleaching. In this paper, especially, we propose a generation method of underwater landmark which is used to measure the position of underwater robot of oceanographic observation based on the dynamic image processing. Then, underwater landmark means the feature point in underwater image.