Importance

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Abstract

A distance measurement device includes an imaging unit, a measurement unit that measures a distance to a subject by emitting directional light which is light having directivity to the subject and receiving reflection light of the directional light, and a deriving unit that acquires a correspondence relation between an in-provisional-image irradiation position, which corresponds to an irradiation position of the directional light onto the subject, within a provisional image acquired by provisionally imaging the subject by the imaging unit whenever each of a plurality of distances is provisionally measured by the measurement unit and a distance which is provisionally measured by the measurement unit by using the directional light corresponding to the in-provisional-image irradiation position, and derives an in-actual-image irradiation position, within an actual image acquired by performing actual imaging by the imaging unit, based on the acquired correspondence relation.

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First Claim