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1.
公开(公告)号:US20170353672A1
公开(公告)日:2017-12-07
申请号:US15610675
申请日:2017-06-01
Inventor: TATSUYA NAKAMURA , TOSHIYA FUJII , MASAAKI YANAGIDA , TAKAMASA ANDO
IPC: H04N5/33 , A61B1/06 , A61B5/026 , H04N5/225 , A61B1/04 , G06T11/60 , G06T7/20 , H04N5/361 , G06T7/00
CPC classification number: H04N5/33 , A61B1/04 , A61B1/06 , A61B5/0042 , A61B5/021 , A61B5/02416 , A61B5/0261 , A61B5/14546 , A61B5/1455 , A61B5/14553 , A61B5/165 , A61B5/4064 , A61B5/7207 , G06T7/0012 , G06T7/20 , G06T11/60 , G06T2207/10048 , G06T2207/20224 , H04N5/2256 , H04N5/2354 , H04N5/361
Abstract: An imaging device includes a light source, an image sensor, and a controller. Each pixel of the image sensor includes first and second accumulators and a discharger. The controller, while a component of light from the light source reflected by the surface of a target is incident on the image sensor, causes the accumulators to accumulate signal charge not discharged to the discharger, by setting the image sensor so that signal charge is discharged to the discharger, while a component having scattered inside the target is incident on the image sensor, causes the first accumulator to accumulate signal charge by setting the image sensor so that signal charge is not discharged to the discharger and signal charge is accumulated in the first accumulator, and causes the image sensor to generate first and second signals that are respectively based on signal charge accumulated in the first and second accumulators.
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2.
公开(公告)号:US20190017932A1
公开(公告)日:2019-01-17
申请号:US16016624
申请日:2018-06-24
Inventor: TERUHIRO SHIONO , TATSUYA NAKAMURA
CPC classification number: G01N21/39 , A61B5/0077 , A61B5/0261 , A61B5/4064 , A61B5/7485 , A61B2576/026 , G01N21/314 , G01N21/474 , G01N33/49 , G01N2021/399 , G01N2201/0697
Abstract: A measuring device includes: a light source that emits, toward a target part of an object, at least one light pulse group each including light pulses emitted sequentially, a photodetector that detects at least a part of at least one reflected light pulse group and including reflected light pulses sequentially returning from the target part, and a control circuit that controls the light source and the photodetector. The control circuit causes the light source to emit the at least one light pulse group within a first period, causes the photodetector to extract, within the first period, a first component that is a component of light included in at least a part of a leading reflected light pulse of the reflected light pulses, and causes the photodetector to output a first electric signal corresponding to the first component.
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公开(公告)号:US20170289468A1
公开(公告)日:2017-10-05
申请号:US15459021
申请日:2017-03-15
Inventor: TOSHIYA FUJII , TAKAMASA ANDO , TATSUYA NAKAMURA
CPC classification number: A61B5/4064 , A61B5/0062 , A61B5/0261 , A61B5/14553 , A61B5/7203 , G01S17/107 , G01S17/89 , H04N5/2256 , H04N5/2354 , H04N5/238 , H04N5/37452
Abstract: An image pickup apparatus includes: a first light source which, in operation, emits first pulsed light to project a first image of a first pattern at a first position in a predetermined region of a subject, and emits second pulsed light to project a second image of a second pattern at a second position, different from the first position, in the predetermined region of the subject; an image sensor including multiple pixels each including a photodetector that, in operation, converts received light into a signal charge, and a first accumulator and a second accumulator each of which, in operation, accumulates the signal charge; and a control circuit which, in operation, controls the first light source and the image sensor.
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