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1.发明申请公开(公告)号：US20210033730A1
公开(公告)日：2021-02-04
申请号：US16981587
申请日：2019-03-06
Inventor： Shigeru SAITOU , Motonori ISHII , Masato TAKEMOTO , Shinzo KOYAMA
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：US20180329063A1
公开(公告)日：2018-11-15
申请号：US16040624
申请日：2018-07-20
Inventor： Masato TAKEMOTO , Shinzo KOYAMA , Motonori ISHII , Shigeru SAITOU , Akito INOUE
CPC classification number: G01S17/105 , G01C3/06 , G01S7/4863 , G01S7/487 , G01S7/497 , G01S17/10
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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公开(公告)号：US20230353906A1
公开(公告)日：2023-11-02
申请号：US18345805
申请日：2023-06-30
Inventor： Toru OKINO , Shinzo KOYAMA , Shigeru SAITOU , Masato TAKEMOTO , Masaki TAMARU , Hiroshi KOSHIDA , Shigetaka KASUGA , Yugo NOSE
IPC: H04N25/779 , H04N25/69
CPC classification number: H04N25/779 , H04N25/69
Abstract: Effective pixels and a failure detection pixel are connected to a control signal line for controlling an operation of the pixels and to an output signal line for outputting a result of failure detection in the pixels. Among the effective pixels, the effective pixels in a same row are connected in common to a same control signal line, and the effective pixels in a same column are connected in common to a same output signal line. The failure detection pixel is connected in common to at least one of the control signal line or the output signal line and configured to detect a failure in any of the effective pixels connected to the at least one of the control signal line or the output signal line.
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公开(公告)号：US20200025932A1
公开(公告)日：2020-01-23
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：US20180247148A1
公开(公告)日：2018-08-30
申请号：US15960050
申请日：2018-04-23
Inventor： Shigeru SAITOU , Hiroshi MURASE
CPC classification number: G06K9/3233 , G06K9/00369 , G06K9/00805 , G06K2209/401 , G06T7/11 , H04N5/232 , H04N5/23229
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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Patent Agency Ranking
6.发明申请公开(公告)号：US20180246214A1
公开(公告)日：2018-08-30
申请号：US15968918
申请日：2018-05-02
Inventor： Motonori ISHII , Shinzo KOYAMA , Masato TAKEMOTO , Shigeru SAITOU
CPC classification number: G01S17/89 , G01S7/481 , G01S7/4861 , G01S7/4863 , G01S7/487 , G01S17/10 , H04N5/332 , H04N5/3575 , H04N5/37452 , H04N5/37457 , H04N9/04553
Abstract: A plurality of pixels in a solid-state imaging device each include: a light receiving circuit that includes a light receiving element performing photoelectric conversion, sets, by an exposure signal, a photoelectric time for performing the photoelectric conversion, and outputs a light reception signal depending on whether or not incident light has reached the pixel within the photoelectric time; a counter circuit that counts, as a count value, the number of times the incident light has reached the pixel, based on the light reception signal; a comparison circuit that sets a value corresponding to the count value as a threshold, and sets a comparison signal to an on state in the case where the count value is greater than the threshold; and a storage circuit that stores, as a distance signal, a time signal when the comparison signal is in the on state.
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公开(公告)号：US20240004041A1
公开(公告)日：2024-01-04
申请号：US18466429
申请日：2023-09-13
Inventor： Shota YAMADA , Masato TAKEMOTO , Shigeru SAITOU
IPC: G01S7/484 , G01S17/894 , G01S7/4865
CPC classification number: G01S7/484 , G01S17/894 , G01S7/4865
Abstract: A distance measuring device includes: a light source configured to project pulsed light; a light receiver configured to receive reflected light; a distance measurement controller configured to select, for distance measurement, one of distance measurement sections set in accordance with distances, and control operation times of the light source and the light receiver in accordance with the selected one of the distance measurement sections; and a distance image generator configured to generate a section image from a signal output from the light receiver, and combine section images corresponding to the distance measurement sections to generate a distance image. The distance measurement controller includes a random number generator configured to generate random number data for selecting one of the distance measurement sections randomly.
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公开(公告)号：US20230078828A1
公开(公告)日：2023-03-16
申请号：US17913089
申请日：2020-03-31
Inventor： Yutaka HIROSE , Yusuke YUASA , Shigeru SAITOU , Shinzo KOYAMA , Akihiro ODAGAWA , Masayuki SAWADA
Abstract: An information processing system includes an object information generator and an output unit. The object information generator generates object information. A piece of the object information indicates a feature of an object present in a target distance section. The target distance section is one selected from a plurality of distance sections defined by dividing the distance measurable range in accordance with differences in elapsed times from a point of time when a light emitting unit emits a measuring light. The object information generator generates the piece of the object information based on a distance section signal associated with the target distance section. The output unit outputs the object information.
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公开(公告)号：US20150221693A1
公开(公告)日：2015-08-06
申请号：US14686068
申请日：2015-04-14
Inventor： Shigeru SAITOU
IPC: H01L27/146
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：US20250148742A1
公开(公告)日：2025-05-08
申请号：US18838119
申请日：2023-03-23
Inventor： Masato TAKEMOTO , Akihiro ODAGAWA , Shinzo KOYAMA , Shigeru SAITOU
Abstract: An image processing method includes: first processing of acquiring a range gate image using a range gate imaging device that captures an image of a set distance range for a predetermined capture area; second processing of searching for a detection target in the range gate image using a search window having a size corresponding to a capture distance from the range gate imaging device to the set distance range; and third processing of synthesizing, when a window region satisfying a predetermined condition is detected in the range gate image in the second processing, object information included in the window region and a grayscale image acquired using a grayscale imaging device that captures a grayscale image of the predetermined capture area and outputting the result.
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