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1.发明申请公开(公告)号：US20180330529A1
公开(公告)日：2018-11-15
申请号：US16026284
申请日：2018-07-03
Applicant: OLYMPUS CORPORATION
Inventor： Hiroki MARUYAMA , Manabu ICHIKAWA
CPC classification number: G06T11/60 , G06T7/90 , G06T2207/10024 , H04N9/0455 , H04N9/07
Abstract: An image processing apparatus includes: an acquiring unit configured to acquire image data, and a correction coefficient for correcting a pixel value difference that corresponds to a difference between spectral sensitivity of a pixel of interest and reference spectral sensitivity set in advance in a predetermined wavelength region; a correction amount calculating unit configured to calculate an estimated value of a color component to be corrected in the pixel of interest, and calculate a correction amount of a pixel value of the pixel of interest based on the estimated value and the correction coefficient of the pixel of interest; and a pixel value correcting unit configured to correct the pixel value of the pixel of interest based on the calculated correction amount, wherein the correction amount calculating unit changes a method of calculating the estimated value and a method of calculating the correction amount depending on a predetermined condition.
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2.发明申请公开(公告)号：US20180109745A1
公开(公告)日：2018-04-19
申请号：US15845166
申请日：2017-12-18
Applicant: OLYMPUS CORPORATION
Inventor： Hiroki MARUYAMA , Manabu ICHIKAWA
CPC classification number: H04N5/357 , G06T5/002 , G06T5/50 , G06T2207/20216 , H04N1/409 , H04N5/21 , H04N5/217 , H04N5/2173 , H04N5/232 , H04N5/23209 , H04N5/3575 , H04N5/378
Abstract: An image processing apparatus includes: an acquisition unit configured to acquire image data and noise information including one of positional information on a reading circuit in which blinking defect noise caused by the reading circuit occurs and positional information on each of pixels; and a correction unit configured to set the image data acquired by the acquisition unit as correction target image data, and correct a pixel value of a pixel of interest of the correction target image data based on the noise information and reference image data that is based on image data acquired at a time different from the correction target image data.
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3.发明申请公开(公告)号：US20180020174A1
公开(公告)日：2018-01-18
申请号：US15706102
申请日：2017-09-15
Applicant: OLYMPUS CORPORATION
Inventor： Hiroki MARUYAMA , Manabu ICHIKAWA
CPC classification number: H04N5/367 , G06T5/002 , G06T5/20 , H04N1/409 , H04N5/142 , H04N5/21 , H04N5/213
Abstract: An image processing apparatus performs image processing on image data including blinking defective noise generated by an image sensor including pixels configured to generate a signal, and readout circuits configured to read out the signal as a pixel value. The image processing apparatus includes: an acquisition unit configured to acquire noise information including position information of a pixel in which there is a possibility that blinking defective noise attributed to the readout circuit occurs; a direction determination unit configured to determine, based on the noise information, and pixel values of neighboring pixels surrounding a pixel of interest in an image corresponding to the image data, a direction in which pixel values having highest correlation with a pixel value of the pixel of interest are consecutively arrayed; and an image processor configured to perform image processing on the image data based on a determination result.
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4.发明申请公开(公告)号：US20210044769A1
公开(公告)日：2021-02-11
申请号：US17079708
申请日：2020-10-26
Applicant: OLYMPUS CORPORATION
Inventor： Hiroki MARUYAMA , Teruaki YAMASAKI
Abstract: An image processing apparatus including a processor including hardware, the processor being configured to: detect a defective pixel from among the multiple pixels; calculate a level of a pixel value of the defective pixel; compare the calculated level of the pixel value of the defective pixel with a threshold to determine whether a defective pixel that is stored in a storage is to be corrected, the threshold being determined based on a brightness that is calculated from pixel values close to a defective pixel and on any one of an exposure time of image data corresponding to a defective pixel on which a determination is to be made, a value of gain, and variation in pixel value among pixels surrounding the defective pixel on which a determination is to be made; and interpolate the pixel value of the determined defective pixel that is to be corrected.
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5.发明申请公开(公告)号：US20180115728A1
公开(公告)日：2018-04-26
申请号：US15841825
申请日：2017-12-14
Applicant: OLYMPUS CORPORATION
Inventor： Hiroki MARUYAMA , Manabu ICHIKAWA
Abstract: An image processing apparatus includes: an acquisition unit configured to acquire defective pixel information including one of positional information on a reading circuit in which defective pixel noise occurs and positional information on each of pixels, blinking defect noise information including one of positional information on a reading circuit in which blinking defect noise occurs and the positional information on each of the pixels, and image data generated by an image sensor; and a noise reduction unit configured to reduce one of the defective pixel noise and the blinking defect noise based on the defective pixel information acquired by the acquisition unit and the blinking defect noise information acquired by the acquisition unit, with respect to the image data acquired by the acquisition unit.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20180010966A1
公开(公告)日：2018-01-11
申请号：US15700254
申请日：2017-09-11
Applicant: OLYMPUS CORPORATION
Inventor： Manabu ICHIKAWA , Hiroki MARUYAMA
CPC classification number: G01J3/28 , G01J3/027 , G01J3/524 , H04N1/603 , H04N1/6041 , H04N5/3651 , H04N9/04 , H04N9/0451 , H04N9/07 , H04N9/646 , H04N9/67
Abstract: An image processing apparatus is configured to: acquire a correction factor from a recording unit for recording, for each of a plurality of pixels, the correction factor for correcting a difference in pixel value corresponding to a difference between a spectral sensitivity and a preset reference spectral sensitivity in a predetermined wavelength range at a pixel of interest, based on image data generated by an image sensor, the image sensor having the plurality of pixels on which color filters of a plurality of colors with different spectral transmittances are respectively located, the color filters forming a predetermined array pattern; calculate a correction amount for correcting a pixel value of the pixel of interest based on the correction factor at the pixel of interest and pixel values of pixels surrounding the pixel of interest; and correct the pixel value of the pixel of interest by using the correction amount.
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7.发明申请公开(公告)号：US20180007293A1
公开(公告)日：2018-01-04
申请号：US15705960
申请日：2017-09-15
Applicant: OLYMPUS CORPORATION
Inventor： Hiroki MARUYAMA , Manabu ICHIKAWA
CPC classification number: H04N5/357 , G06T5/002 , G06T2207/10004 , H04N1/409 , H04N5/217 , H04N5/3575 , H04N5/367 , H04N5/378
Abstract: Provided is an image processing apparatus for correcting blinking defect noise contained in image data generated by an image sensor. The image sensor includes a pixels arranged two-dimensionally and reading circuits configured to read a pixel value. The image processing apparatus includes: an information acquisition unit configured to acquire noise information that is defined by associating positional information of the reading circuits or positional information of each of the pixels with feature data related to the blinking defect noise caused by the reading circuits; an estimation unit configured to estimate a random noise amount in a pixel of interest based on the feature data and a random noise model for estimating the random noise amount in the pixel of interest; and a correction unit configured to correct a pixel value of the pixel of interest based on the random noise amount estimated by the estimation unit.
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8.发明申请公开(公告)号：US20170302867A1
公开(公告)日：2017-10-19
申请号：US15640668
申请日：2017-07-03
Applicant: OLYMPUS CORPORATION
Inventor： Manabu ICHIKAWA , Hiroki MARUYAMA
Abstract: An image processing apparatus includes: a pixel value group creation unit configured to create, for a plurality of pieces of image data generated by an image sensor including: a plurality of pixels arranged two-dimensionally to receive light from outside and generate a signal corresponding to an amount of the received light; and a plurality of read-out circuits shared by a predetermined number of pixels and configured to read out the signal as pixel values, a plurality of pixel value groups by classifying the pixel values for each of the plurality of read-out circuits; and a noise determination unit configured to determine whether blinking defect noise occurs in each of the plurality of pixel value groups, based on distribution of the pixel values of each of the plurality of pixel value groups created by the pixel value group creation unit.
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9.发明申请公开(公告)号：US20170295329A1
公开(公告)日：2017-10-12
申请号：US15632743
申请日：2017-06-26
Applicant: OLYMPUS CORPORATION
Inventor： Manabu ICHIKAWA , Hiroki MARUYAMA
CPC classification number: H04N5/357 , H04N1/409 , H04N5/213 , H04N5/341 , H04N5/772 , H04N5/907 , H04N5/956 , H04N7/14
Abstract: Provided is an image processing apparatus for correcting blinking defect noise included in image data generated by an image sensor, the image sensor including pixels arranged two-dimensionally and read-out circuits configured to read out a pixel value. The image processing apparatus is configured to: acquire noise information that associates the pixel value with positional information of the read-out circuits or positional information of each of the pixels, and with feature data related to blinking defect noise attributed to the read-out circuits; determine whether the blinking defect noise occurs on a pixel of interest based on the noise information; calculate candidate values indicating a correction amount for correcting the blinking defect noise based on the noise information and a pixel value of the pixel of interest if the blinking defect noise occurs; and correct the pixel value of the pixel of interest based on the candidate values.
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10.发明申请公开(公告)号：US20190238771A1
公开(公告)日：2019-08-01
申请号：US16247691
申请日：2019-01-15
Applicant: OLYMPUS CORPORATION
Inventor： Hiroki MARUYAMA , Manabu ICHIKAWA , Teruaki YAMASAKI
Abstract: An image processing apparatus is disclosed which processes noise resulting from a defective pixel different from a low saturation pixel, included in image data generated by an image sensor including a plurality of pixels two-dimensionally arranged to receive light from outside and generate a signal according to an amount of received light and including a plurality of read-out circuits that read out the signal as a pixel value. The image processing apparatus includes an acquisition unit that obtains the image data generated by the image sensor and a saturation level of each of the plurality of pixels; and a noise processing unit that processes the noise on the basis of the saturation level obtained by the acquisition unit.
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