AISデータと画像処理による航路抽出

概要

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The aim of this paper is to describe a route extraction method, which is based on AIS information and an image processing technique. A gray picture of the targeted water region is generated from the ship position acquired from AIS information. By using our newly developed route extraction algorithm, multiple routes were extracted from a gray picture of the north water region of Tokyo Bay. The results are summarized as follows: (1) A set of multiple routes was successfully extracted for the northbound traffic and for the southbound traffic, respectively. (2) The existence of motionles s vessels was shown to affect the route extraction characteristics. (3) At least a two-week amount of the AIS information was required for the route extraction. (4) Both the time and space complexities were shown that were required for the route extraction. (5) A proportionality relation was shown to exist between a first extraction threshold and a traffic volume.
2010-03-25