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公开(公告)号：US09419036B2
公开(公告)日：2016-08-16
申请号：US14686068
申请日：2015-04-14
Inventor： Shigeru Saitou
IPC: H01L27/00 , H01L31/00 , H01L27/146 , H01L31/0232
CPC classification number: H01L27/14627 , H01L27/14629 , H01L27/14645 , H01L31/0232
Abstract: A solid-state imaging device includes: light-receiving elements; and first dispersive elements on a light-incident side of the light-receiving elements. Each first dispersive element includes first and second light transmissive film materials. The second light transmissive film material has a refractive index that is lower than that of the first light transmissive film material in a first wavelength range and higher than that of the first light transmissive film material in a second wavelength range longer in wavelength than the first wavelength range. A volume occupation ratio of the first light transmissive film material in each dispersive element increases from one end towards the other end of the dispersive element in a direction parallel to a light-receiving surface, while a volume occupation ratio of the second light transmissive film material in the dispersive element increases from the other end towards the one end in the direction.
Abstract translation: 固态成像装置包括：光接收元件; 以及在光接收元件的光入射侧的第一色散元件。 每个第一分散元件包括第一和第二透光膜材料。 第二透光膜材料的折射率低于第一波长范围内的第一透光膜材料的折射率，并且比第一透光膜材料的折射率高于第一透光膜材料的波长比第一波长长的第二波长范围 范围。 每个分散元件中的第一透光膜材料的体积占有率在平行于光接收表面的方向上从分散元件的一端向另一端增加，而第二透光膜材料的体积占有率 在分散元件中从另一端朝向该方向的一端增加。
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公开(公告)号：US11988750B2
公开(公告)日：2024-05-21
申请号：US17482365
申请日：2021-09-22
Inventor： Shigeru Saitou , Shinzo Koyama , Motonori Ishii , Masato Takemoto
IPC: G01S17/89 , G01S17/10 , G01S17/894 , G06T7/11
CPC classification number: G01S17/894 , G01S17/10 , G06T7/11
Abstract: A distance measurement device includes: an image capturer that captures N segmental images corresponding to N segmental distances into which a distance measurement range is divided; and a range image generator that generates a range image from the N segmental images. The range image generator determines: among segmental pixels included in the N segmental images, a segmental pixel having a maximum signal value from N segmental pixels at the same pixel position among pixel positions; a value indicating a segmental distance of the segmental pixel having the maximum signal value to be a distance value of the pixel position of the range image, when the maximum signal value is greater than or equal to a threshold; and a value indicating a value outside the distance measurement range to be the distance value of the pixel position of the range image, when the maximum signal value is less than the threshold.
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公开(公告)号：US11467285B2
公开(公告)日：2022-10-11
申请号：US16497754
申请日：2018-03-12
Inventor： Shigeru Saitou , Shinzo Koyama , Masato Takemoto , Motonori Ishii
Abstract: An image recognition device includes a light source that emits lighting pulses to a measurement space, a image generator that generates a distance image based on reflected light acquired by a light receiving element, a reflectivity calculator that calculates a correction coefficient corresponding to a reflectivity for each measurement section, and a lighting pulse controller that controls a number of lighting pulses emitted from the light source according to the correction coefficient for each measurement section.
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公开(公告)号：US10984221B2
公开(公告)日：2021-04-20
申请号：US16494742
申请日：2018-03-12
Inventor： Shigeru Saitou , Shinzo Koyama , Masato Takemoto , Motonori Ishii
Abstract: An image recognition device includes: a luminance image generator and a distance image generator that generate a luminance image and a distance image, respectively, based on an image signal of an imaging target object output from a photoreceptor element; a target object recognition processor that extracts a target-object candidate from the luminance image using a machine learning database; and a three-dimensional object determination processor that uses the distance image to determine whether the extracted target-object candidate is a three-dimensional object. If it is determined that the target-object candidate is not a three-dimensional object, the target-object candidate extracted from the luminance image is prevented from being used, in the machine learning database, as image data for extracting a feature value of a target object.
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公开(公告)号：US20210011167A1
公开(公告)日：2021-01-14
申请号：US17029601
申请日：2020-09-23
Inventor： Motonori Ishii , Masato Takemoto , Shigeru Saitou , Shinzo Koyama
IPC: G01S17/89 , H04N5/353 , H04N5/3745 , G01S7/4865
Abstract: Each of column signal lines is connected to two or more of P pixels belonging to one of Q pixel columns of pixels. In each of the pixels, a first switch switches connection and disconnection between a light receiver and a first charge storage. A second switch switches connection and disconnection between the first charge storage and a second charge storage. A third switch switches connection and disconnection between the first charge storage and one of column signal lines corresponding to the pixel. The fourth switch switches the connection and disconnection between the second charge storage and the one of the column signal lines corresponding to the pixel.
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Patent Agency Ranking
公开(公告)号：US10339405B2
公开(公告)日：2019-07-02
申请号：US15960050
申请日：2018-04-23
Inventor： Shigeru Saitou , Hiroshi Murase
Abstract: An image recognition device includes: a camera unit that generates a distance signal and a luminance signal using reflected light from a plurality of subjects; an image generator that generates a range image from the distance signal and generates a luminance image from the luminance signal; and an image recognition processor that performs image recognition. The image recognition processor divides each of the range image and the luminance image into a plurality of regions, makes a determination, for each of the plurality of regions, as to whether the regions is a first region in which a specific object is clearly not present or a second region other than the first region, and performs image recognition processing on, among the plurality of regions, one or more regions other than the first region.
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7.发明授权公开(公告)号：US12013459B2
公开(公告)日：2024-06-18
申请号：US16981587
申请日：2019-03-06
Inventor： Shigeru Saitou , Motonori Ishii , Masato Takemoto , Shinzo Koyama
CPC classification number: G01S17/10 , G01S7/4816 , G01S7/4868 , G01S17/18 , G01S17/89 , G01S7/4873
Abstract: A distance measuring device is to be connected to a wave transmitter and a wave receiver. The distance measuring device includes a distance measuring unit, which calculates a distance to the target based on a time interval between transmission of a measuring wave from a wave transmitter and reception of the measuring wave at a wave receiver. The target may be present across a preceding distance range and a succeeding distance range which are continuous with each other and both of which belong to a plurality of distance ranges defined by dividing a measurable distance range. In such a situation, the distance measuring unit calculates the distance to the target based on respective amounts of a preceding wave received at the wave receiver over a period corresponding to the preceding distance range and a succeeding wave received at the wave receiver over a period corresponding to the succeeding distance range.
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公开(公告)号：US11657526B2
公开(公告)日：2023-05-23
申请号：US17171907
申请日：2021-02-09
Inventor： Shigeru Saitou , Akihiro Odagawa , Shinzo Koyama , Masato Takemoto
CPC classification number: G06T7/586 , G01S7/4816 , G01S17/08 , G06T2207/10144 , G06T2207/10152 , G06T2207/30252
Abstract: A distance measurement device includes: a light source configured to emit visible illumination light; an imaging element configured to receive reflected light of the illumination light from an object; and a signal processing circuit configured to reduce the emission of the illumination light in a predetermined period, detect a timing when the reception of the reflected light at the imaging element is reduced due to the reduction of the illumination light, and measure a distance to the object on the basis of the detected timing.
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公开(公告)号：US11243310B2
公开(公告)日：2022-02-08
申请号：US17029601
申请日：2020-09-23
Inventor： Motonori Ishii , Masato Takemoto , Shigeru Saitou , Shinzo Koyama
IPC: G01S17/89 , G01S7/4865 , H04N5/30 , H04N5/00 , H04N5/353 , H04N5/3745
Abstract: Each of column signal lines is connected to two or more of P pixels belonging to one of Q pixel columns of pixels. In each of the pixels, a first switch switches connection and disconnection between a light receiver and a first charge storage. A second switch switches connection and disconnection between the first charge storage and a second charge storage. A third switch switches connection and disconnection between the first charge storage and one of column signal lines corresponding to the pixel. The fourth switch switches the connection and disconnection between the second charge storage and the one of the column signal lines corresponding to the pixel.
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公开(公告)号：US11204421B2
公开(公告)日：2021-12-21
申请号：US16040624
申请日：2018-07-20
Inventor： Akito Inoue , Masato Takemoto , Shinzo Koyama , Motonori Ishii , Shigeru Saitou
IPC: G01S17/14 , G01S7/487 , G01S17/10 , G01S17/36 , G01S7/4865 , G01S17/04 , G01S17/18 , G01S17/86 , G01S17/894 , G01S7/4863 , G01S7/497
Abstract: A distance measuring device includes a controller and a distance calculator. The controller sets, in a first time period, a first measurement time range corresponding to a first measurement distance range; causes a light emitter to emit light and places a light receiver into an exposure state, in the first measurement time range; sets, in a second time period, a second measurement time range corresponding to a second measurement distance range; and causes the light emitter to emit light and places the light receiver into an exposure state, in the second measurement time range. At least one measurement condition is different between the first and second time periods. The distance calculator calculates the distance from the distance measuring device to a measurement target, based on the time from the emission to the reflection of light. The time is in at least one of the first and second time periods.
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