DISTANCE MEASUREMENT DEVICE AND DISTANCE MEASUREMENT METHOD

摘要

In the distance measurement device and distance measurement method according to the present invention, the distance to a prescribed object included in a latest photographed image that is the most recent photographed image from among chronological photographed images photographed by a photography unit is determined on the basis of the latest photographed image and a reference image stored in a reference information storage unit. The photography state of the photography unit is obtained, a determination is made about whether the obtained photography state meets a prescribed condition, and on the basis of the determination result, a determination is made about whether to discard the reference image stored in the reference information storage unit.