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1.发明公开公开(公告)号：US20230397805A1
公开(公告)日：2023-12-14
申请号：US18033713
申请日：2022-02-17
Inventor： Yoshio OHTSUKA , Masato lZAWYA , Tomoki OGAWA , Toshiyuki NAKASHIMA , Masayuki AIHARA , Kazuhiro FUNAMOTO , Tadashi MIKI
Abstract: An intraoral camera system includes an imaging unit that generates image data by capturing an image of a tooth inside the mouth of a user, an area detector that detects the orientation of the imaging unit according to output by a multi-axis acceleration sensor and detects, according to the orientation detected, an area whose image is being captured by the imaging unit from among areas inside the mouth, the areas being determined by dividing a dentition into sections, and an identifier that narrows candidates which are combinations of tooth types and tooth positions down to fewer candidates to be used, according to the image data and the area detected, and identifies the type and the position of the tooth according to the narrowed candidates and the image data.
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公开(公告)号：US20230377101A1
公开(公告)日：2023-11-23
申请号：US18030445
申请日：2021-11-24
Inventor： Yoshio OHTSUKA , Masato IZAWA , Tomoki OGAWA , Toshiyuki NAKASHIMA , Masayuki AIHARA , Kazuhiro FUNAMOTO , Tadashi MIKI
IPC: G06T5/00 , G06T7/90 , G06T7/136 , G06T7/00 , G06T5/50 , H04N17/00 , H04N23/74 , H04N23/76 , H04N23/72 , A61B1/24 , A61B1/06
CPC classification number: G06T5/005 , G06T7/90 , G06T7/136 , G06T7/97 , G06T5/50 , H04N17/002 , H04N23/74 , H04N23/76 , H04N23/72 , A61B1/24 , A61B1/0625 , G06T2207/30036 , G06T2207/20221
Abstract: A dentition image capturing system includes: illumination devices to radiate light; an imaging device to capture first and second dentition images in a predetermined exposure period; a high luminance region extraction unit to extract a high luminance region for the first and second dentition images; a high luminance region comparison unit to calculate a degree of similarity between the high luminance region of the first dentition image and the second dentition image; a halation region specification unit to specify the high luminance region of the first dentition image as a halation region in a case where the similarity degree is smaller than a predetermined threshold; an image synthesis processing unit executing image synthesis processing of extracting a trimming region in the second dentition image corresponding to the halation region and replacing the halation region with the trimming region; and a dentition image output unit to output the first dentition image.
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公开(公告)号：US20180160052A1
公开(公告)日：2018-06-07
申请号：US15888002
申请日：2018-02-03
Inventor： Masayuki AIHARA , Shigenori YATSURI , Yoshio MATSUMURA
CPC classification number: H04N5/265 , B60R1/00 , B60R11/04 , B60R2300/10 , G02B3/02 , G02B13/18 , G06K9/00791 , H04N5/2254 , H04N5/23232 , H04N5/23238 , H04N5/247 , H04N7/18 , H04N7/183
Abstract: An imaging system includes: a first imaging apparatus including a first imaging element and a first optical system; and a generator that generates an image based on image data acquired from the first imaging element. The first optical system includes a first free-form surface lens that has a shape that allows an image to be formed on the first imaging element such that a resolution is different between a portion of a predetermined region and another portion of the predetermined region, the resolution being defined as a total number of imaging pixels that capture an image within a unit field angle on a horizontal plane.
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公开(公告)号：US20180120545A1
公开(公告)日：2018-05-03
申请号：US15854797
申请日：2017-12-27
Inventor： Masayuki AIHARA , Shigenori YATSURI , Yoshio MATSUMURA
CPC classification number: G02B13/18 , G01B11/24 , G01C3/10 , G01C11/02 , G01C11/06 , G01C11/30 , G02B3/02 , G02B13/0045 , G06T7/55 , H04N5/2254
Abstract: A distance measurement system includes: an imaging device including an imaging element where a plurality of imaging pixels are arranged in matrix, and an optical system forming an image of a predetermined region on an imaging surface of the imaging element; and a distance measurer determining a distance to a target object based on data of the image obtained from the imaging element, wherein the optical system includes a free-form surface lens having a rotationally asymmetric shape that forms the image on the imaging surface such that a resolution of a first region in front of the region is higher than that of a second region at a lateral side of the region, each of the resolutions being a ratio of the number of ones of the imaging pixels used to pick up an image included in per unit angle of view to a total number of the imaging pixels.
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Patent Agency Ranking
公开(公告)号：US20230329538A1
公开(公告)日：2023-10-19
申请号：US18033718
申请日：2022-02-17
Inventor： Yoshio OHTSUKA , Masato IZAWA , Tomoki OGAWA , Toshiyuki NAKASHIMA , Masayuki AIHARA , Kazuhiro FUNAMOTO , Tadashi MIKI
Abstract: An intraoral camera system includes an imaging unit and an image determination unit. The imaging unit generates an image data item showing a target tooth for image capturing inside a mouth. The image determination unit defines two-dimensional plane coordinates for the image data item generated by the imaging unit and extracts the position coordinates of the outline of the target tooth from the entire imaging area of the imaging unit. When a part of the outline of the target tooth is outside an effective area set inside the entire imaging area of the imaging unit, the image determination unit determines that the target tooth extends beyond the effective area.
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公开(公告)号：US20230165454A1
公开(公告)日：2023-06-01
申请号：US17921289
申请日：2022-02-17
Inventor： Yoshio OHTSUKA , Masato IZAWA , Tomoki OGAWA , Toshiyuki NAKASHIMA , Masayuki AIHARA , Kazuhiro FUNAMOTO , Tadashi MIKI
CPC classification number: A61B1/247 , A61B1/04 , A61B1/00009 , A61B1/00045 , A61C19/04
Abstract: An intraoral camera system includes an imaging unit and an image processor. If a first angle formed by an imaging plane perpendicular to the optical axis of the imaging unit and a first direction that is the vertically upward direction along a vertical axis is less than a predetermined second angle, the image processor rotates image data to cause the vertically upward direction along the vertical axis to coincide with an upward direction of an image by rotating the image data by a third angle formed by the first direction and a second direction from a handle toward a head.
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公开(公告)号：US20160104473A1
公开(公告)日：2016-04-14
申请号：US14878009
申请日：2015-10-08
Inventor： Masayuki AIHARA
IPC: G10K11/175 , H04N5/232 , H04N5/225
CPC classification number: H04N5/23212 , G10K11/341 , G10L21/0264 , H04N5/232 , H04R3/005 , H04R2410/05 , H04R2499/11
Abstract: Provided is an imaging apparatus that performs sound processing suitable for each type of AF operation according to a lens f-number so that recorded sound is clear and contains little noise. The imaging apparatus includes a lens, a microphone for recording sound, and a filter configured to reduce noise contained in an output signal of the microphone. The noise reduction level of the filter is controlled according to the lens f-number so that the noise reduction level of the filter is increased when the lens f-number is large than when the lens f-number is small.
Abstract translation: 提供一种成像装置，其根据透镜f号执行适合于每种类型的AF操作的声音处理，使得记录的声音清晰并且包含很少的噪声。 成像设备包括镜头，用于记录声音的麦克风和被配置为减少包含在麦克风的输出信号中的噪声的滤波器。 根据透镜f数控制滤光器的降噪电平，使得当透镜f数大于透镜f数小时滤光器的噪声降低水平增加。
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公开(公告)号：US20190302429A1
公开(公告)日：2019-10-03
申请号：US16442463
申请日：2019-06-15
Inventor： Masayuki AIHARA , Shigenori YATSURI , Yoshio MATSUMURA
IPC: G02B13/18 , H04N5/225 , G01C3/10 , G02B13/00 , G01C11/06 , G06T7/55 , G02B3/02 , G01C11/30 , G01C11/02 , G01B11/24
Abstract: An imaging device having an optical system including a free-form surface lens with rotationally asymmetric shape that forms an image on an imaging surface such that a resolution of a first region in front of the predetermined region is higher than a resolution of a second region at a lateral side of the predetermined region. The free-form surface lens has a shape that forms the image such that a resolution of a portion at a predetermined first distance away from a center of the first region in a vertical direction is different from a resolution of a portion at the predetermined first distance away from the center of the first region in a horizontal direction, the vertical direction being orthogonal to the horizontal direction, in the imaging element, in which the first region and the second region are aligned.
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公开(公告)号：US20180338095A1
公开(公告)日：2018-11-22
申请号：US15971370
申请日：2018-05-04
Inventor： Masayuki AIHARA , Yoshio MATSUMURA , Shigenori YATSURI , Hiroyuki SHOBAYASHI
CPC classification number: H04N5/2258 , G06K9/00791 , G06K9/209 , G06K2009/2045 , H04N5/2254 , H04N5/23232 , H04N5/3696
Abstract: An imaging system includes first imaging device (10a) and second imaging device (10b). First imaging device (10a) includes a first optical system having a first view angle, and a first imaging element. Second imaging device (10b) includes a second optical system having a second view angle that is wider than the first view angle, and a second imaging element. The second optical system is configured to form an image including a first region and a second region, which do not overlap each other, such that a resolution in the second region is higher than a resolution in the first region corresponding to an imaging range of the first view angle, in an imaging surface of a subject image.
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