Distance measurement device, distance measurement method, and distance measurement program

• Main Authors: Masuda, Tomonori, Tamayama, Hiroshi
• Format: Patent
• Language: English
• Published: 17.05.2022
• Subjects: ACCESSORIES THEREFOR; ANALOGOUS ARRANGEMENTS USING OTHER WAVES; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ELECTROGRAPHY; GYROSCOPIC INSTRUMENTS; HOLOGRAPHY; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; RADIO DIRECTION-FINDING; RADIO NAVIGATION; SURVEYING; TESTING

A distance measurement device includes an imaging optical system, an imaging unit, an emission unit, a derivation unit which performs a distance measurement to derive a distance to a subject based on a timing at which directional light is emitted by the emission unit and a timing at which reflected light is received by a light receiving unit, a shake correction unit which performs shake correction as correction of shake of the subject image caused by variation of an optical axis of the imaging optical system, and a control unit which performs control such that the shake correction unit does not perform shake correction or performs shake correction with a correction amount smaller than a normal correction amount determined in advance in a case of performing the distance measurement and performs shake correction with the normal correction amount in a case of not performing the distance measurement.