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    Information processing apparatus, information processing method, and calibration apparatus
    11.
    发明授权
    Information processing apparatus, information processing method, and calibration apparatus 有权

    公开(公告)号：US11637967B2

    公开(公告)日：2023-04-25

    申请号：US17044533

    申请日：2019-01-15

    Applicant: SONY CORPORATION

    Inventor： Ying Lu ,  Yasutaka Hirasawa ,  Yuhi Kondo ,  Tuo Zhuang ,  Legong Sun

    IPC: H04N5/243 ,  G06T7/80 ,  G01J4/04 ,  G01N21/21 ,  H04N5/225 ,  H04N5/235 ,  H04N17/00

    Abstract: Provided is a polarization imaging unit that acquires a polarization image using a lens. In a parameter storage unit of an information processing unit, parameters related to a change in polarization state due to the lens which are estimated in advance from polarization state information acquired by imaging a light source in a predetermined polarization state using the lens and polarization state information indicating the polarization state of the light source, for example, change parameters indicating the change in polarization state due to the lens or correction parameters for correcting the change in polarization state due to the lens are stored. A polarization state correction unit of the information processing unit corrects the change in polarization state due to the lens, using the parameters stored in advance in the parameter storage unit.

    Image processing device, information generation device, and information generation method
    14.
    发明授权
    Image processing device, information generation device, and information generation method 有权

    公开(公告)号：US10904503B2

    公开(公告)日：2021-01-26

    申请号：US16670239

    申请日：2019-10-31

    Applicant: SONY CORPORATION

    Inventor： Yuhi Kondo ,  Shun Kaizu ,  Teppei Kurita ,  Tuo Zhuang ,  Yasutaka Hirasawa ,  Ying Lu

    IPC: H04N9/64 ,  H04N5/232 ,  G01J3/50 ,  G01J4/04 ,  H04N9/73 ,  H04N17/00 ,  H04N9/04

    Abstract: A correction information generation section 50 emits measurement light having uniform intensity onto a polarized image acquisition section 20 acquiring a polarized image. Further, on the basis of a measured polarized image acquired from the polarized image acquisition section 20, the correction information generation section 50 generates variation correction information for correcting sensitivity variations caused in the measured polarized image due to difference in polarization direction, and causes a correction information storage section 30 to store the generated variation correction information. A correction processing section 40 then corrects the sensitivity variations caused in the polarized image acquired by the polarized image acquisition section 20 due to the difference in polarization direction by using the pre-generated variation correction information stored in the correction information storage section 30. Therefore, the polarized image outputted from the correction processing section 40 becomes a high-quality polarized image with, for example, its sensitivity variations corrected.

    Image processing apparatus and image processing method
    15.
    发明授权
    Image processing apparatus and image processing method 有权

    公开(公告)号：US10529076B2

    公开(公告)日：2020-01-07

    申请号：US15569259

    申请日：2016-03-01

    Applicant: SONY CORPORATION

    Inventor： Ying Lu ,  Yasutaka Hirasawa ,  Yuhi Kondo ,  Ayaka Nakatani ,  Akihiko Kaino

    IPC: G06K9/00 ,  G06T7/246 ,  G06T7/20 ,  G06T7/73 ,  G06T7/579

    Abstract: A normal-line information generation block 30 generates normal-line information for a frame subject to detection. A data storage block 50 stores normal-line information and the like of a key frame. A motion amount detection block 40 detects a motion amount of an imaging position of the frame subject to detection relative to an imaging position of the key frame on the basis of the normal-line information of the key frame stored in the data storage block 50 and the normal-line information of the frame subject to detection generated by the normal-line information generation block 30. Even if a positional difference of a same point is small or a luminance difference occurs between a taken image of the key frame and a taken image of a current frame, a motion amount of the imaging position of the frame subject to detection relative to the imaging position of the key frame can be accurately detected on the basis of normal-line information. Therefore, an observation position can be accurately detected.

    Image processing device and image processing method
    16.
    发明授权
    Image processing device and image processing method 有权

    公开(公告)号：US10366303B2

    公开(公告)日：2019-07-30

    申请号：US15032195

    申请日：2014-11-17

    Applicant: SONY CORPORATION

    Inventor： Yuhi Kondo

    IPC: G02B5/30 ,  G06K9/00 ,  G06K9/20 ,  G06K9/46 ,  G06T7/73 ,  G02B27/28

    Abstract: A polarization image acquisition unit (11) acquires polarization images of three or more polarization directions. A feature quantity computation unit (15) computes image feature quantities on the basis of the acquired polarization images. For example, the luminance of each polarization image is normalized for each pixel, and the normalized luminance of the polarization image is used as the image feature quantity. The luminance of the polarization image changes according to the surface shape of an object. Thus, the image feature quantities computed on the basis of the polarization images are feature quantities corresponding to the surface shape of the object. Image processing, for example, image recognition, feature point detection, feature point matching, or the like, can be performed on the basis of the surface shape of the object using such image feature quantities.

    Image processing apparatus, image processing method, and program
    19.
    发明授权
    Image processing apparatus, image processing method, and program 有权

    公开(公告)号：US11930160B2

    公开(公告)日：2024-03-12

    申请号：US17273891

    申请日：2019-06-06

    Applicant: SONY CORPORATION

    Inventor： Yuhi Kondo ,  Yasutaka Hirasawa ,  Takefumi Nagumo ,  Toshinori Ihara ,  Teppei Kurita ,  Legong Sun

    IPC: H04N19/105 ,  H04N19/136 ,  H04N19/182 ,  H04N19/186 ,  H04N19/423

    CPC classification number: H04N19/105 ,  H04N19/136 ,  H04N19/182 ,  H04N19/186 ,  H04N19/423

    Abstract: A polarization imaging unit 20 acquires a polarized image including polarization pixels with a plurality of polarization directions. An information compression unit 40 sets reference image information based on polarized image information of reference polarization pixels with at least a plurality of polarization directions in the polarized image and generates difference information between the polarized image information of each of polarization pixels different from the reference polarization pixels in the polarized image and the reference image information. In addition, the information compression unit 40 reduces the amount of information of the difference information generated for each of the polarization pixels with the plurality of polarization directions to generate compressed image information including the reference image information and the difference information with the reduced amount of information. An information decoding unit 70 applies a decoding process corresponding to the compression process of the information compression unit 40 to the compressed image information acquired through a recording medium 50 or a transmission path 60 to generate the polarized image and outputs the polarized image to a polarized image using unit 80.

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