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公开(公告)号：US11295407B2
公开(公告)日：2022-04-05
申请号：US16017034
申请日：2018-06-25
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yuki Ishida , Mitsuru Uratani , Hiroyuki Sakai , Yuki Omagari , Tomohiro Suzuki
Abstract: The first image data is converted into the second image data defined by a color space that depends on an output apparatus that outputs image data. Additional information is multiplexed on the converted second image data by using a multiplex parameter.
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公开(公告)号：US20180220032A1
公开(公告)日：2018-08-02
申请号：US15933645
申请日：2018-03-23
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ryosuke Iguchi , Nobutaka Miyake , Yuki Ishida , Wei Song , Naoki Sumi
Abstract: An image processing method is provided for acquiring additional information from image information obtained by shooting a printed product on which the additional information is multiplexed by at least one of a plurality of different multiplexing methods, the method comprising: attempting decoding of the additional information from the image information by a plurality of different decoding methods corresponding to the plurality of different multiplexing methods; and outputting, by a unit, the additional information successfully decoded.
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3.发明申请IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM 有权图像处理设备，图像处理方法以及非终端计算机可读存储介质公开(公告)号：US20160080602A1
公开(公告)日：2016-03-17
申请号：US14835863
申请日：2015-08-26
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yuki Ishida , Ryosuke Iguchi , Wei Song , Nobutaka Miyake
IPC: H04N1/32
CPC classification number: H04N1/32203 , H04N1/32267 , H04N2201/0082
Abstract: A plurality of quantization conditions for embedding additional information is held. An image is segmented into a plurality of embedding regions, and a condition used in quantization is selected from the plurality of quantization conditions based on information of the image that corresponds to an embedding region to be processed and a position of the embedding region to be processed.
Abstract translation: 保持用于嵌入附加信息的多个量化条件。 图像被分割为多个嵌入区域，并且基于与要处理的嵌入区域相对应的图像的信息和要处理的嵌入区域的位置从多个量化条件中选择用于量化的条件 。
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4.发明申请公开(公告)号：US20130135686A1
公开(公告)日：2013-05-30
申请号：US13683334
申请日：2012-11-21
Applicant: CANON KABUSHIKI KAISHA
Inventor： Seiji Abe , Mitsuru Uratani , Yuki Ishida , Yuki Omagari
IPC: H04N1/00
CPC classification number: H04N1/00819 , H04N1/6033 , H04N1/6055
Abstract: An image processing apparatus includes a measurement unit configured to read a patch image for a calibration which is printed on a recorded medium by a printing apparatus and measure a density of the patch image, a reception unit configured to receive spectral reflection factor information measured by reading the patch image for the calibration printed on the recorded medium by using a measurement device capable of measuring a spectral reflection factor at every predetermined wavelengths, and a processing unit configured to perform a calibration for a printing using the recorded medium by the printing apparatus on the basis of the density measured by the measurement unit and the spectral reflection factor information received by the reception unit.
Abstract translation: 一种图像处理装置，包括：测量单元，被配置为读取由打印装置打印在记录介质上的校准的斑块图像，并测量斑块图像的密度;接收单元，被配置为接收通过读取测量的光谱反射因子信息 通过使用能够测量每个预定波长的光谱反射系数的测量装置，印刷在记录介质上的校准的贴片图像，以及处理单元，被配置为使用所述打印装置在所述记录介质上执行用于打印的校准 由测量单元测量的密度的基础和由接收单元接收的光谱反射因子信息。
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5.发明公开公开(公告)号：US20240196106A1
公开(公告)日：2024-06-13
申请号：US18585219
申请日：2024-02-23
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hiroyuki Sakai , Mitsuru Uratani , Yuki Ishida , Yuki Omagari , Tomohiro Suzuki
CPC classification number: H04N23/88 , H04N1/4052 , H04N1/6022 , H04N1/6077 , H04N23/56
Abstract: An image capturing unit captures an image including an embedded image that is printed on the basis of image data in which at least a color component has been modulated according to additional information. An adjustment unit adjusts a white balance of the image captured by the image capturing unit on the basis of an adjustment value associated with the embedded image. A processing unit processes image data of the image captured by the image capturing unit whose white balance has been adjusted by the adjustment unit to read the additional information in the image captured by the image capturing unit.
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Patent Agency Ranking
公开(公告)号：US20210211555A1
公开(公告)日：2021-07-08
申请号：US17142337
申请日：2021-01-06
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yuki Omagari , Hiroyuki Sakai , Yuki Ishida , Tomohiro Suzuki
Abstract: The present disclosure provides a technique to obtain a tilt state occurring between an image capturing unit and a print image having additional information embedded in it without using the visible image. In the technique, an image of a print image in which additional information having a specified frequency characteristic is embedded is captured using an image capturing unit to obtain captured image data. A frequency analysis is performed on partial image data corresponding to a specified area in the obtained captured image data, to obtain distance information on a distance between the specified area and the image capturing unit. Inclination information indicating a state of a relative inclination between the image capturing unit and the print image is obtained based on this distance.
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7.发明申请公开(公告)号：US20200288096A1
公开(公告)日：2020-09-10
申请号：US16880100
申请日：2020-05-21
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hiroyuki Sakai , Mitsuru Uratani , Yuki Ishida , Yuki Omagari , Tomohiro Suzuki
Abstract: An image capturing unit captures an image including an embedded image that is printed on the basis of image data in which at least a color component has been modulated according to additional information. An adjustment unit adjusts a white balance of the image captured by the image capturing unit on the basis of an adjustment value associated with the embedded image. A processing unit processes image data of the image captured by the image capturing unit whose white balance has been adjusted by the adjustment unit to read the additional information in the image captured by the image capturing unit.
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公开(公告)号：US10469701B2
公开(公告)日：2019-11-05
申请号：US15933645
申请日：2018-03-23
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ryosuke Iguchi , Nobutaka Miyake , Yuki Ishida , Wei Song , Naoki Sumi
Abstract: An image processing method is provided for acquiring additional information from image information obtained by shooting a printed product on which the additional information is multiplexed by at least one of a plurality of different multiplexing methods, the method comprising: attempting decoding of the additional information from the image information by a plurality of different decoding methods corresponding to the plurality of different multiplexing methods; and outputting, by a unit, the additional information successfully decoded.
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9.发明申请公开(公告)号：US20160080648A1
公开(公告)日：2016-03-17
申请号：US14837505
申请日：2015-08-27
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ryosuke Iguchi , Yuki Ishida , Wei Song , Nobutaka Miyake
CPC classification number: H04N5/23238 , G06T1/005 , G06T3/4053 , G06T2201/0061 , G06T2201/0065 , H04N5/23212 , H04N5/23229 , H04N5/23232 , H04N5/23258 , H04N5/2353 , H04N5/2356
Abstract: Upon capturing a digital watermark embedded in a wide range of a print product separately plural times by moving an image capturing device, a camera shake occurs, captured images become out of focus, and the digital watermark cannot be read. In one embodiment, upon performing continuous shooting of a print product plural times, shooting is performed while changing the image capturing condition of the device, and information of the watermark is obtained based on plural captured images. Even if the device is moved to perform shooting separately plural times, it can be prevented that the distance to the print product cannot be adjusted owing to occurrence of a camera shake, and a captured image becomes out of focus. A user holds the device by the hand and can accurately perform shooting.
Abstract translation: 通过移动图像捕捉装置分别多次捕获广泛的打印产品中嵌入的数字水印时，发生相机抖动，拍摄的图像变得焦点不足，并且不能读取数字水印。 在一个实施例中，在多次打印产品连续拍摄时，在改变装置的图像拍摄条件的同时执行拍摄，并且基于多个拍摄图像获得水印的信息。 即使移动设备多次执行拍摄，也可以防止由于相机抖动的发生而导致与打印品的距离不能调整，并且捕获的图像变得焦点不足。 用户用手握住设备，可以准确地执行拍摄。
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公开(公告)号：US11265441B2
公开(公告)日：2022-03-01
申请号：US17142337
申请日：2021-01-06
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yuki Omagari , Hiroyuki Sakai , Yuki Ishida , Tomohiro Suzuki
Abstract: The present disclosure provides a technique to obtain a tilt state occurring between an image capturing unit and a print image having additional information embedded in it without using the visible image. In the technique, an image of a print image in which additional information having a specified frequency characteristic is embedded is captured using an image capturing unit to obtain captured image data. A frequency analysis is performed on partial image data corresponding to a specified area in the obtained captured image data, to obtain distance information on a distance between the specified area and the image capturing unit. Inclination information indicating a state of a relative inclination between the image capturing unit and the print image is obtained based on this distance.
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