SHIP DETECTION APPARATUS, SHIP DETECTION PROGRAM AND SHIP DETECTION METHOD FOR SHIP DETECTION APPARATUS

摘要

PROBLEM TO BE SOLVED: To highly accurately detect a ship based on image data obtained by radar observation.SOLUTION: A CFAR method operation part 120 specifies a pixel region of a radar image 191 on which a ship is displayed as a ship estimation region in each polarization combination by a CFAR method. A wake method operation part 121 specifies the pixel region of the radar image 191 on which the ship is displayed as a ship specification region in each polarization combination by a wake method. An SC ratio map generation part 130 sets an SC ratio (a ratio of the estimated intensity of a ship scattering wave to the estimated intensity of a sea level scattering wave) in a ship candidate area (the ship estimation area, a part of the ship estimation area) in each polarization combination to generate an SC ratio map 197. An SC ratio addition map generation part 140 adds a plurality of SC ratio maps 197a to N having respectively different polarization combinations and generates an SC ratio addition map 198. A ship detection part 150 specifies a ship area based on the SC ratio addition map 198.