OBSERVATION DEVICE, OBSERVATION UNIT, AND OBSERVATION METHOD

Title:

OBSERVATION DEVICE, OBSERVATION UNIT, AND OBSERVATION METHOD

Document Type and Number:

WIPO Patent Application WO/2019/093426

Kind Code:

A1

Abstract:

[Problem] To provide: an observation device with which an observation region having a narrow range can be observed with precision while inhibiting blur; an observation unit; and an observation method. [Solution] Provided is a magnifying glass 1 with which a tooth T is imaged by cameras 30, 21 and observed, wherein the cameras 30, 21 are formed from a narrow-range camera 30 which images the tooth T in a narrow imaging range An, and a wide-range camera 21 which images the tooth T in a wide imaging range Aw. The magnifying glass 1 is provided with: a three-dimensional position calculation unit 52 which detects the three-dimensional position of at least the tooth T on the basis of a wide range imaging image captured by the wide-range camera 21; a blur correction processing unit 53 which corrects blur in a narrow range imaging image captured by the narrow-range camera 30, on the basis of the change in the three-dimensional relative positions of the narrow-range camera 30 and the tooth T of which the three-dimensional position was detected by the three-dimensional position calculation unit 52; and an image display unit 40 which displays at least the narrow range imaging image in which blur has been corrected.

Inventors:

SORIMOTO KEISUKE (JP)
TANAKA TSUYOSHI (JP)
SANO MASAYUKI (JP)
KAJI RYOSUKE (JP)
NISHIMURA MIKINORI (JP)

Application Number:

PCT/JP2018/041516

Publication Date:

May 16, 2019

Filing Date:

November 08, 2018

Export Citation:

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Assignee:

J MORITA MFG CORP (JP)

International Classes:

G02B21/22; A61C19/04; G02B21/36

Foreign References:

JP2003052718A	2003-02-25
JPH0616099B2	1994-03-02
JPH11253433A	1999-09-21
JP2013117848A	2013-06-13
JP2017191609A	2017-10-19
JP2003052718A	2003-02-25

Other References: