AUGMENTED REALITY BASED TIDAL CURRENT DISPLAY DEVICE

An augmented reality (AR) based tidal current display device (1) for superimposing tidal current information on an image displayed on a display screen (17) includes an image sensor information terminal (12) configured to receive image sensor information, a tidal current information terminal (14) configured to receive tidal current information, and a tidal current selection unit (151) configured to select one or more tidal currents (204, 205) located in a field of view of the image sensor (10) based on the tidal current information, a position calculation unit (152) configured to calculate a corresponding display position on the display screen (17) for each tidal current, based on the tidal current information and the image sensor information, and a tidal superimposition unit configured to generate a symbol for each selected tidal current to indicate each display position on the display screen (17), and output each symbol to the display screen (17).