IMAGE PICKUP DEVICE AND DISTANCE MEASURING METHOD

An imaging apparatus (10) includes: an imaging unit (11); a focal range control unit (12) configured to cause the imaging unit (11) to capture a first image (31a) and a second image (31b) which have mutually different focal ranges, changing a focal position of the imaging unit (11); a reference imag...

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Bibliographische Detailangaben
Hauptverfasser:	KIMURA, MASAYUKI, KAWAMURA, TAKASHI, ISOGAI, KUNIAKI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	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 CALCULATING CINEMATOGRAPHY COMPUTING COUNTING DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY GYROSCOPIC INSTRUMENTS HOLOGRAPHY IMAGE DATA PROCESSING OR GENERATION, IN GENERAL LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING DISTANCES, LEVELS OR BEARINGS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS NAVIGATION OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION RADIO DIRECTION-FINDING RADIO NAVIGATION SURVEYING TESTING
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Beschreibung
Zusammenfassung:	An imaging apparatus (10) includes: an imaging unit (11); a focal range control unit (12) configured to cause the imaging unit (11) to capture a first image (31a) and a second image (31b) which have mutually different focal ranges, changing a focal position of the imaging unit (11); a reference image generation unit (13) configured to generate, using the first image (31a) and the second image (31b), a reference image (32) to be used as a blur standard; and a distance measurement unit (14) configured to measure a distance to the subject based on a difference in blur degrees between the reference image (32) and each of the first image (31a) and the second image (31b). The focal ranges of the first image (31a) and the second image (31b) are independent of each other, and an out-of-focus space is provided between the focal ranges.