15 research outputs found
昭和基地を中心とする宙空無人ネットワーク観測の現状と将来
第2回極域科学シンポジウム/第35回極域宙空圏シンポジウム 11月15日(火) 国立極地研究所 2階大会議
Ionospheric convection response to small interplanetary magnetic field
第6回極域科学シンポジウム[OS] 宙空圏11月16日(月) 国立極地研究所1階交流アトリウ
Database and data search system using \u27KANSEI\u27 words for aurora image files of DMSP satellites
Image Database Systems usually have some keywords selected by human decision. In recent years, it has been an interesting problem to develop a method by which shapes, colors and contents for a specific image from image files are recognized automatically through image processing. Furthermore, it becomes important to determine properly the keywords representing impression of images, that is, \u27KANSEI\u27 words. We try to construct a database and data search system of the DMSP satellite auroral image files. At first, an index file including information such as file name, size, date and geometric feature of images is created through image processing. The impressional items for auroral shapes such as brightness, position, and impression are derived by a coordinate conversion method so called the \u27KANSEI\u27 space method. The system contains about 100 image files and the index file. A specific image data is searched with the index file and the conversion method of \u27KANSEI\u27 words