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1. 发明申请

US20200184665A1 SHAPE INFORMATION ACQUISITION APPARATUS AND SHAPE INFORMATION ACQUISITION METHOD 审中-公开
公开(公告)号：US20200184665A1
公开(公告)日：2020-06-11
申请号：US16701998
申请日：2019-12-03
申请人： CANON KABUSHIKI KAISHA
发明人： Kiyokatsu Ikemoto
IPC分类号： G06T7/586 , G06T7/73 , H04N5/225 , G06T7/521 , G01B11/25
摘要： A shape information acquisition apparatus, comprises a memory and at least one processor and/or at least one circuit to perform operations of the following units. The acquiring unit is configured to acquire photometric images for which a subject is illuminated from different directions by an illuminance portion and a pattern projection image for which a predetermined light pattern is projected onto the subject by a projection portion. The detection unit configured to detect a position of the illuminance portion based on the pattern projection image. The shape calculation unit configured to calculate shape information for the subject based on the photometric images and the position of the illuminance portion.

2. 发明申请

US20190089891A1 IMAGE SHIFT AMOUNT CALCULATION APPARATUS AND METHOD, IMAGE CAPTURING APPARATUS, DEFOCUS AMOUNT CALCULATION APPARATUS, AND DISTANCE CALCULATION APPARATUS 审中-公开
公开(公告)号：US20190089891A1
公开(公告)日：2019-03-21
申请号：US16131159
申请日：2018-09-14
申请人： CANON KABUSHIKI KAISHA
发明人： Kiyokatsu Ikemoto
IPC分类号： H04N5/232 , H04N5/365 , H01L27/146 , H04N5/349 , G01C3/08 , H04N13/128
摘要： An image shift amount calculation apparatus comprises: an obtaining unit that obtains a pair of images having parallax; a generation unit that generates, from the pair of images, an image pair for each of a plurality of hierarchal levels having different resolutions; and a calculation unit calculates an image shift amount for an image pair in a predetermined first hierarchal level among the plurality of hierarchal levels, determines, on the basis of the image shift amount in the first hierarchal level, a second hierarchal level, among the plurality of hierarchal levels, where the calculation of the image shift amount is to end, and calculates an image shift amount of the image pair in the second hierarchal level using the image shift amount in the first hierarchal level.

3. 发明申请

US20180114327A1 DEPTH DETECTION APPARATUS AND DEPTH DETECTION METHOD 审中-公开
公开(公告)号：US20180114327A1
公开(公告)日：2018-04-26
申请号：US15787963
申请日：2017-10-19
申请人： CANON KABUSHIKI KAISHA
发明人： Kiyokatsu Ikemoto
IPC分类号： G06T7/55 , G06T7/521
CPC分类号： G06T7/55 , G06T7/521 , G06T7/593
摘要： Provided is a depth detection apparatus for detecting depth information from a first and a second image based on a light flux passing through different pupil regions, the apparatus including an image generator that generates a third and a fourth image by subjecting the first and the second image to a filter, a depth detector that detects depth information from a relative positional shift amount between the third and the fourth image, a representative value acquirer that acquires a representative value of spatial frequencies of the third or the fourth image from a frequency characteristic of the filter, and a confidence determiner that determines confidence for the depth information from the representative value. The confidence is determined as a value representing higher confidence as the representative value is greater.

4. 发明申请

US20150176976A1 DISTANCE DETECTING APPARATUS 审中-公开
标题翻译：距离检测装置
公开(公告)号：US20150176976A1
公开(公告)日：2015-06-25
申请号：US14417924
申请日：2013-07-17
申请人： CANON KABUSHIKI KAISHA
发明人： Kazuya Nobayashi , Kiyokatsu Ikemoto
IPC分类号： G01B11/12
摘要： A distance detecting apparatus includes an imaging unit that generates a first image signal and a second image signal and an arithmetic processing unit. The distance detecting apparatus detects the distance to a subject on the basis of an amount of defocus indicating the distance between an imaging plane of the imaging unit and an image forming plane of light fluxes. The arithmetic processing unit executes a first step of calculating an amount of temporary defocus on the basis of the first image signal and the second image signal, a second step of calculating a conversion factor used to convert an amount of image displacement between a first image and a second image into the amount of defocus on the basis of the amount of temporary defocus, and a third step of calculating the amount of defocus by using the conversion factor.
摘要翻译：距离检测装置包括产生第一图像信号和第二图像信号的成像单元和运算处理单元。距离检测装置基于指示成像单元的成像面和光束的图像形成面之间的距离的散焦量来检测到被摄体的距离。算术处理单元执行基于第一图像信号和第二图像信号计算临时散焦量的第一步骤，计算用于转换第一图像和第二图像信号的图像位移量的转换因子的第二步骤基于临时散焦量的第二图像转换为散焦量，以及通过使用转换因子来计算散焦量的第三步骤。

5. 发明授权

US10600195B2 Depth detection apparatus and depth detection method 有权
公开(公告)号：US10600195B2
公开(公告)日：2020-03-24
申请号：US15787963
申请日：2017-10-19
申请人： CANON KABUSHIKI KAISHA
发明人： Kiyokatsu Ikemoto
IPC分类号： G06T7/55 , G06T7/521 , G06T7/593
摘要： Provided is a depth detection apparatus for detecting depth information from a first and a second image based on a light flux passing through different pupil regions, the apparatus including an image generator that generates a third and a fourth image by subjecting the first and the second image to a filter, a depth detector that detects depth information from a relative positional shift amount between the third and the fourth image, a representative value acquirer that acquires a representative value of spatial frequencies of the third or the fourth image from a frequency characteristic of the filter, and a confidence determiner that determines confidence for the depth information from the representative value. The confidence is determined as a value representing higher confidence as the representative value is greater.

6. 发明申请

US20200007851A1 IMAGING APPARATUS, METHOD OF PROCESSING IMAGE, AND STORAGE MEDIUM 审中-公开
公开(公告)号：US20200007851A1
公开(公告)日：2020-01-02
申请号：US16443672
申请日：2019-06-17
申请人： CANON KABUSHIKI KAISHA
发明人： Yoshiaki Ida , Chiaki Inoue , Yuichi Kusumi , Kiyokatsu Ikemoto
IPC分类号： H04N13/254 , H04N13/207
摘要： An apparatus includes an imaging element for obtaining a plurality of parallax images by receiving a plurality of light flux that passes through different areas of a pupil of an optical system by different pixels, and a processor for performing image processing on an image that is obtained by using the imaging element. The processor includes a first obtaining unit that obtains first shape information based on a plurality of photometric stereo images that are shot by using the imaging element in light source conditions that include at least three different light source conditions, a second obtaining unit that obtains second shape information by using the plurality of parallax images, and a third obtaining unit that obtains third shape information by using the first shape information and the second shape information.

7. 发明授权

US09841580B2 Distance measuring apparatus 有权
公开(公告)号：US09841580B2
公开(公告)日：2017-12-12
申请号：US14441820
申请日：2013-10-21
申请人： CANON KABUSHIKI KAISHA
发明人： Kiyokatsu Ikemoto
IPC分类号： G02B7/28 , G01C3/08 , G02B7/34 , G01C3/14
CPC分类号： G02B7/287 , G01C3/08 , G01C3/14 , G02B7/34
摘要： The present invention relates to a distance measuring apparatus including an imaging device and a calculation unit calculating a distance to a subject on the basis of an electrical signal. The imaging device includes a signal acquisition unit that acquires a first electrical signal based on a beam that has passed through a first region off the center of the exit pupil in a predetermined direction; a second electrical signal based on a beam that has passed through a second region off the center of the exit pupil in a direction opposite to the predetermined direction; and a third electrical signal based on a beam that has passed through a region eccentric from the first region in the direction opposite to the predetermined direction. The calculation unit performs a signal correction process for generating a first corrected signal and a distance calculation process for calculating the distance.

8. 发明授权

US09568606B2 Imaging apparatus for distance detection using high and low sensitivity sensors with inverted positional relations 有权
标题翻译：使用具有反向位置关系的高灵敏度传感器和低灵敏度传感器进行距离检测的成像设备
公开(公告)号：US09568606B2
公开(公告)日：2017-02-14
申请号：US13798830
申请日：2013-03-13
申请人： CANON KABUSHIKI KAISHA
发明人： Kiyokatsu Ikemoto
IPC分类号： G01S17/89 , G01S11/12 , H04N5/355 , H01L27/146
CPC分类号： G01S17/89 , G01S11/12 , H01L27/14621 , H01L27/14627 , H04N5/35563
摘要： An imaging apparatus includes an imaging optical system having an exit pupil and an image sensor having pixels including first and second pixels. Each pixel has high and low sensitivity light receiving sections and a pupil divider. Each of the first pixels is arranged near one of the second pixels. The pupil divider guides light from a part of the exit pupil of the imaging optical system to the high or low sensitivity light receiving section in a first pixel and guides light from another part of the exit pupil to the high or low sensitivity light receiving section in the neighboring second pixel. The positional relation between the high and low sensitivity light receiving sections relative to the center in a pixel is mutually inverted in the pupil dividing direction between a first pixel and the neighboring second pixel.
摘要翻译：成像装置包括具有出射光瞳的成像光学系统和具有包括第一和第二像素的像素的图像传感器。每个像素具有高和低灵敏度的光接收部分和光瞳分隔部。每个第一像素布置在第二像素中的一个附近。瞳孔分隔器将来自成像光学系统的出射光瞳的一部分的光引导到第一像素中的高或低灵敏度光接收部分，并将来自出射光瞳的另一部分的光引导到高或低灵敏度光接收部分相邻的第二像素。高灵敏度光接收部分和低灵敏度光接收部分之间相对于像素中心的位置关系在第一像素和相邻第二像素之间的瞳孔分割方向上相互反转。

9. 发明授权

US09219855B2 Image sensor, ranging apparatus, and imaging apparatus 有权
标题翻译：图像传感器，测距装置和成像装置
公开(公告)号：US09219855B2
公开(公告)日：2015-12-22
申请号：US14249532
申请日：2014-04-10
申请人： CANON KABUSHIKI KAISHA
发明人： Kiyokatsu Ikemoto
IPC分类号： H04N5/232 , G01S11/12
CPC分类号： H04N5/23212 , G01S11/12 , H01L27/14623 , H01L27/14629
摘要： Provided is a ranging apparatus or the like capable of high-accuracy ranging. The image sensor, comprising multiple pixels, wherein the pixels comprises a ranging pixel including a light collecting member, a waveguide, and first and second photoelectric conversion units, wherein: the first and second units are arranged along a first direction; when a region decentered from a center of pupil in a second direction opposite to the first direction is a first pupil region, a region decentered in the first direction is a second pupil region, a region located in the second direction is a first region, and a region located in the first direction is a second region, the collecting member collects lights passed through the first and second pupil regions to the second and first regions; and the waveguide guides lights collected in the second and first regions toward the first and second units.
摘要翻译：提供能够高精度测距的测距装置等。所述图像传感器包括多个像素，其中所述像素包括包括光收集构件，波导和第一和第二光电转换单元的测距像素，其中：所述第一和第二单元沿着第一方向布置; 当在与第一方向相反的第二方向上从瞳孔中心偏心的区域是第一瞳孔区域时，在第一方向上偏心的区域是第二瞳孔区域，位于第二方向的区域是第一区域，并且位于第一方向的区域是第二区域，所述收集构件将通过所述第一和第二光瞳区域的光收集到所述第二区域和所述第一区域; 并且波导将聚集在第二和第一区域中的光引向第一和第二单元。

10. 发明授权

US11176695B2 Shape information acquisition apparatus and shape information acquisition method 有权
公开(公告)号：US11176695B2
公开(公告)日：2021-11-16
申请号：US16701998
申请日：2019-12-03
申请人： CANON KABUSHIKI KAISHA
发明人： Kiyokatsu Ikemoto
IPC分类号： G06T7/586 , G06T7/73 , H04N5/225 , G06T7/521 , G01B11/25 , G02F1/1335 , G02F1/13363 , G02F1/1337
摘要： A shape information acquisition apparatus, comprises a memory and at least one processor and/or at least one circuit to perform operations of the following units. The acquiring unit is configured to acquire photometric images for which a subject is illuminated from different directions by an illuminance portion and a pattern projection image for which a predetermined light pattern is projected onto the subject by a projection portion. The detection unit configured to detect a position of the illuminance portion based on the pattern projection image. The shape calculation unit configured to calculate shape information for the subject based on the photometric images and the position of the illuminance portion.

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