Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SHIMPO Masatoshi and SHU Riki and YAMAMOTO Shigehiro,Study of Image Processing Method for Lookout Support at Sea,The Journal of Japan Institute of Navigation,03887405,Japan Institute of Navigation,2008,119,0,91-97,https://cir.nii.ac.jp/crid/1390282680458090496,https://doi.org/10.9749/jin.119.91