PROBLEM TO BE SOLVED: To carry out line-of-sight calibration without imposing a burden on a user.SOLUTION: The line-of-sight detection device 100 determines a temporary correction coefficient every time the user selects an object. The line-of-sight detection device 100 determines a correction coefficient by putting importance on the temporary correction coefficient determined when the gaze level of the user is high, based on the relation between the selected object and the other objects, out of a plurality of correction coefficients. The line-of-sight detection device 100 thus utilizes user operation to determine the correction coefficient without the user being aware of the line-of-sight calibration.