LOCATION INFORMATION IDENTIFYING METHOD, LOCATION INFORMATION IDENTIFYING DEVICE, AND LOCATION INFORMATION IDENTIFYING PROGRAM

摘要

[Problem];To provide a location information identifying method for accurately specifying a position and the like of an object shown in an image.;[Solution];A location information identifying method includes; a step for obtaining the object image 3 photographed by the drive recorder 2; a step for obtaining the first scale plate image 42 obtained when the first scale plate 4 arranged so as to be opposed to the drive recorder 2 at the first distance X apart from the drive recorder 2 is photographed; a step for overlapping the first scale plate image 42 and the object image 3 with each other; a step for measuring the image-height A, which is the distance from the object 5 located at the preset height H1 to the center of the object image 3, appeared on the object image 3, by using the first scale plate image 42; a step for calculating the angle B between the horizontal plane and the straight line joining the drive recorder 2 to the object 5, by using image-height A and the first distance X; and a step for calculating the target distance Y1 from the drive recorder 2 to the object 5, based on the height difference H between the drive recorder 2 and the object 5 and the angle B as well.