INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING PROGRAM

An information processing device according to the present disclosure includes an acquisition unit that acquires an arrangement of a landmark and surrounding terrain data, a first estimation unit that estimates a range in which a self-position is located on a basis of a landmark map that is a map indicating the arrangement of the landmark, and a second estimation unit that estimates the self-position from the range in which the self-position is located on a basis of a terrain data map that is a map indicating the surrounding terrain data.