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11.发明申请IMAGE CAPTURING APPARATUS, IMAGE CAPTURING SYSTEM, AND CONTROL METHOD FOR THE IMAGE CAPTURING APPARATUS 有权图像捕获设备，图像捕获系统和图像捕获设备的控制方法公开(公告)号：US20150078725A1
公开(公告)日：2015-03-19
申请号：US14483429
申请日：2014-09-11
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takenori Kobuse
CPC classification number: G11B20/00007 , G11B20/22 , G11B20/24 , G11B2020/00072 , H04N5/365 , H04N5/3655 , H04N5/772 , H04N5/911
Abstract: An image capturing apparatus comprises an image capturing unit that includes an image sensor that has an effective pixel region and a reference pixel region which outputs a reference signal for correcting an output signal of the effective pixel region. In a case where a predetermined condition is satisfied, a reduction unit reduces a data amount of reference pixel region data that corresponds to the reference pixel region in an image data obtained by the image capturing unit. A recording unit records the image data after the processing performed by the reduction unit.
Abstract translation: 一种摄像装置包括：图像拍摄单元，其包括具有有效像素区域的图像传感器和输出用于校正有效像素区域的输出信号的参考信号的参考像素区域。 在满足预定条件的情况下，缩小单元减少由图像捕获单元获得的图像数据中与参考像素区域相对应的参考像素区域数据的数据量。 记录单元在由缩小单元执行的处理之后记录图像数据。
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公开(公告)号：US11184565B2
公开(公告)日：2021-11-23
申请号：US16830724
申请日：2020-03-26
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takenori Kobuse
Abstract: An object of the present invention is to obtain an image having a better S/N ratio in accordance with gain settings in an image pickup apparatus that enables amplifying a signal based on output of a photoelectric conversion unit, with a plurality of gains. An image pickup element provided in an image pickup apparatus has a photoelectric conversion unit in which unit pixels are arranged in a matrix and a signal voltage is generating by photoelectric conversion. A column amplifier of the image pickup element can amplify the signal voltage photoelectrically converted with a plurality of gains. An image pickup element control unit performs drive control of the image pickup element to perform gain settings. An image composition unit performs image composition by using a plurality of image signals having different gains. When the image pickup element changes an amplification factor of the column amplifier to output image signals with a plurality of gains, the image pickup element control unit changes a value of a second gain that is smaller than that of a first gain among the gains and performs control so as not to change the value of the first gain.
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公开(公告)号：US10735661B2
公开(公告)日：2020-08-04
申请号：US16220120
申请日：2018-12-14
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takenori Kobuse
IPC: H04N5/235 , G03B7/091 , G03B9/40 , G03B7/16 , H04N5/347 , G03B15/05 , G03B31/00 , H04N5/353 , G06T1/00 , H04N5/357
Abstract: An image pickup apparatus which satisfactorily compensates for a flash band appearing due to an external flash and prevents a row insensitive to the flash from appearing in a corrected image. The flash band appearing in a plurality of frames consecutive in terms of time is detected based on an image signal output from an image pickup device which sequentially starts exposure and sequentially reads out signals for each row of pixels. An image in at least one of those frames is corrected to a full-screen flash image. When a width of the flash band is smaller than the number of rows in one frame, a row in which the flash band does not appear is interpolated using a row in which the flash band appears and which immediately precedes or immediately succeeds the row in which the flash band does not appear.
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14.发明申请公开(公告)号：US20190124245A1
公开(公告)日：2019-04-25
申请号：US16220120
申请日：2018-12-14
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takenori Kobuse
CPC classification number: H04N5/235 , G03B7/091 , G03B7/16 , G03B9/40 , G03B15/05 , G03B31/00 , G06T1/0007 , H04N5/2351 , H04N5/347 , H04N5/3532 , H04N5/3572
Abstract: An image pickup apparatus which satisfactorily compensates for a flash band appearing due to an external flash and prevents a row insensitive to the flash from appearing in a corrected image. The flash band appearing in a plurality of frames consecutive in terms of time is detected based on an image signal output from an image pickup device which sequentially starts exposure and sequentially reads out signals for each row of pixels. An image in at least one of those frames is corrected to a full-screen flash image. When a width of the flash band is smaller than the number of rows in one frame, a row in which the flash band does not appear is interpolated using a row in which the flash band appears and which immediately precedes or immediately succeeds the row in which the flash band does not appear.
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公开(公告)号：US10027919B2
公开(公告)日：2018-07-17
申请号：US15445273
申请日：2017-02-28
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takenori Kobuse
Abstract: A signal processing apparatus comprising: an analog-digital converter that converts an analog signal output from a pixel section of an image sensor to a digital signal using a plurality of reference signals having different slopes from each other; and a determination unit that determines a signal level at which the plurality of reference signals are changed based on a distribution of the converted digital signal, wherein the analog-digital converter performs the conversion using a reference signal having a steeper slope when the analog signal is equal to or greater than the signal level than when the analog signal is smaller than the signal level.
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Patent Agency Ranking
公开(公告)号：US20180063401A1
公开(公告)日：2018-03-01
申请号：US15662430
申请日：2017-07-28
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takenori Kobuse , Kenzo Hisa
IPC: H04N5/235 , H04N5/353 , H04N5/3745 , H04N5/378
CPC classification number: H04N5/2353 , H04N5/243 , H04N5/3532 , H04N5/3592 , H04N5/3745 , H04N5/37452 , H04N5/378 , H04N9/045
Abstract: An image capturing apparatus comprises an image sensor in which a plurality of pixels are arranged two-dimensionally, wherein each of the pixels have a photoelectric conversion portion, a holding portion that holds a charge obtained by the photoelectric conversion portion, an amplification portion that outputs a signal based on a charge outputted from the holding portion, a first transfer switch that transfers the charge from the photoelectric conversion portion to the holding portion, and a second transfer switch that transfers the charge from the holding portion to the amplification portion; and a controller that controls a number of times that the first transfer switch is turned on in relation to the second transfer switch being turned on one time.
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17.发明申请公开(公告)号：US20170272630A1
公开(公告)日：2017-09-21
申请号：US15457535
申请日：2017-03-13
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takenori Kobuse
CPC classification number: H04N5/2256 , H04N5/2351 , H04N5/2352 , H04N5/2354 , H04N5/2357
Abstract: A flash band determination device that is capable of always detecting a flash band with high accuracy. It is determined whether or not there is a flash band caused by an external flash of light, which is an area having a luminance level higher than a threshold level, in a plurality of images which are continuously obtained. The threshold level is changed with respect to an image picked up with an exposure condition which is different from an exposure condition used in picking up a preceding image.
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18.发明授权公开(公告)号：US09721609B2
公开(公告)日：2017-08-01
申请号：US14483429
申请日：2014-09-11
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takenori Kobuse
CPC classification number: G11B20/00007 , G11B20/22 , G11B20/24 , G11B2020/00072 , H04N5/365 , H04N5/3655 , H04N5/772 , H04N5/911
Abstract: An image capturing apparatus comprises an image capturing unit that includes an image sensor that has an effective pixel region and a reference pixel region which outputs a reference signal for correcting an output signal of the effective pixel region. In a case where a predetermined condition is satisfied, a reduction unit reduces a data amount of reference pixel region data that corresponds to the reference pixel region in an image data obtained by the image capturing unit. A recording unit records the image data after the processing performed by the reduction unit.
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19.发明授权公开(公告)号：US11569283B2
公开(公告)日：2023-01-31
申请号：US17176631
申请日：2021-02-16
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yusuke Yamashita , Tokuro Nishida , Kazuya Kitamura , Hiroyuki Hasegawa , Takenori Kobuse , Yoshikazu Ishikawa , Takayuki Kimura
IPC: H04N5/225 , H01L27/146 , H04N5/232
Abstract: An image pickup apparatus that enables to quickly capture an image from which a predetermined reflected light component is removed with desired sensitivity. A polarizing filter two-dimensionally arranges a plurality of sets each of which includes polarizing filter elements having different polarization directions. A first image sensor has pixels that respectively correspond to polarizing filter elements of the polarizing filter. A polarization calculation unit detects a polarized component of light that enters into a region in which one set of polarizing filter elements are arranged based on signals output from pixels in the region of the first image sensor for each region. A correction unit corrects a pixel signal output from a pixel of a second image sensor corresponding to the region based on a calculation result by the polarization calculation unit for each pixel of the second image sensor.
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公开(公告)号：US11165978B2
公开(公告)日：2021-11-02
申请号：US16844365
申请日：2020-04-09
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takenori Kobuse , Kentaro Tsukida , Takanori Yamashita , Daisuke Kobayashi , Kazuho Tsukui
Abstract: In order to provide an imaging device that includes an amplifier performing amplification with a plurality of gains for each signal from a pixel unit and can further reduce a noise component, an imaging device included in an imaging apparatus has the pixel unit in which unit pixels are arranged in a matrix and generates a signal voltage by photoelectric conversion. A column amplifier can amplify a photoelectrically converted signal with a plurality of gains. After an amplified signal is subjected to analog/digital conversion by a column ADC, a signal processing circuit subtracts a noise signal from a pixel signal. A noise signal read out after resetting a floating diffusion section included in the pixel unit and a pixel signal read out immediately thereafter are acquired by being multiplied by a first gain, and a pixel signal read out thereafter is acquired by being multiplied by a second gain. The first gain is set to a value larger than the second gain.
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