Patents by Inventor Shohei Tsutsumi
Shohei Tsutsumi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140198230Abstract: By the conventional method, it is not possible to check whether or not a target subject is included in a range in which refocus can be performed at the time of image capturing or at the time of editing a captured image. An image processing apparatus includes a subject of interest specification unit configured to specify a subject of interest within a parallax image obtained by performing image capturing from a plurality of different viewpoints, and a notification unit configured to notify a user of a focused state of the specified subject of interest in an image to be generated by performing image combination processing using the parallax image.Type: ApplicationFiled: January 15, 2014Publication date: July 17, 2014Inventor: Shohei Tsutsumi
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Publication number: 20140049666Abstract: It is inconvenient for a user that a UI for inputting a virtual focus position at the time of refocus and a UI for inputting a focus position at the time of image capturing exist separately from and independently of each other. An image processing device comprising a generation unit configured to generate combined image data obtained in a case of capturing an image with a second set value different from a first set value used in capturing an image with an image capturing device by using a plurality of pieces of captured image data obtained by the image capturing device, wherein the image capturing device is capable of capturing image data from a plurality of viewpoint positions and includes an operation unit for setting a set value of an image capturing parameter, and wherein the first and second set values are set via the operation unit.Type: ApplicationFiled: August 8, 2013Publication date: February 20, 2014Inventor: Shohei Tsutsumi
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Patent number: 8649626Abstract: A weighting coefficient sequence defining unit generates an array in which weighting coefficients are held at positions defined by the directional components of blur vectors, and adjusts the weighting coefficients to increase the sum of the frequency components of the array or reduce variations of the frequency components. A weighting unit multiplies respective captured images by corresponding weighting coefficients, generating L weighted captured images. The weighting unit then generates the synthesized image of the L weighted captured images. A corrected image generation unit performs deconvolution processing using the frequency component of the array in which the weighting coefficients are held at positions defined by the directional components of blur vectors, and the frequency component of the synthesized image. The corrected image generation unit performs an inverse frequency transform for the deconvolution processing result, generating an output image.Type: GrantFiled: May 10, 2011Date of Patent: February 11, 2014Assignee: Canon Kabushiki KaishaInventor: Shohei Tsutsumi
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Patent number: 8553282Abstract: This invention reduces an increasing capacity of image data by using PQR (spectral auxiliary coefficients) in addition to CIELAB (fundamental stimulus values), compared to conventional CIELAB. To accomplish this, image data holding fundamental stimulus values and spectral auxiliary coefficients is input. Output colors corresponding the input fundamental stimulus values and spectral auxiliary coefficients are calculated. An image size corresponding to the spectral auxiliary coefficient is smaller than that corresponding to the fundamental stimulus.Type: GrantFiled: October 17, 2008Date of Patent: October 8, 2013Assignee: Canon Kabushiki KaishaInventor: Shohei Tsutsumi
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Publication number: 20130229532Abstract: By a conventional technique, it is not possible to provide an image refocused accurately at a desired subject distance. An image processing device is characterized by including an image data acquiring unit configured to acquire calibration image data obtained by an image capturing device including an aperture to adjust an amount of incident light, a lens array in which a plurality of lenses is arranged, and an image sensing element to photoelectrically convert an image of a subject via the lens array and obtained in a state where the aperture is stopped down in accordance with an instruction of calibration; and a unit configured to acquire a position of an image on the image sensing element corresponding to each of the lenses based on the calibration image data.Type: ApplicationFiled: February 27, 2013Publication date: September 5, 2013Applicant: CANON KABUSHIKI KAISHAInventor: Shohei Tsutsumi
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Publication number: 20130063614Abstract: This invention provides an image free from camera shake by using a plurality of images captured by a camera array image capturing apparatus. A determination unit determines whether to execute a camera shake correction processing. A memory unit temporarily stores only a group of images determined by a determination unit to be camera shake corrected. A camera shake correcting unit synthesizes images to correct blurs in the images. A matching point searching unit determines matching pixels by checking pixel value similarity between images. A moving amount calculating unit, based on the result acquired by the matching point searching unit, calculates a moving amount of each pixel between images. A position correcting unit, based on the moving amount of each pixel calculated by the moving amount calculating unit, corrects the positions of the images. An image synthesizing unit synthesizes a group of images that are position-corrected by the position correcting unit.Type: ApplicationFiled: September 5, 2012Publication date: March 14, 2013Applicant: CANON KABUSHIKI KAISHAInventor: Shohei Tsutsumi
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Publication number: 20130038723Abstract: An image acquisition apparatus according to the present invention includes a first image capturing unit group including a plurality of image capturing units in which at least part of in-focus distance ranges overlap each other and a second image capturing unit group including a plurality of image capturing units in which at least part of in-focus distance ranges overlap each other. The second image capturing unit group is different from the first image capturing unit group. A first object distance to an object is obtained from image data acquired by the first image capturing unit group and a second object distance different from the first object distance is obtained from image data acquired by the second image capturing unit group.Type: ApplicationFiled: August 6, 2012Publication date: February 14, 2013Applicant: CANON KABUSHIKI KAISHAInventor: Shohei Tsutsumi
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Patent number: 8289405Abstract: A plurality of images captured by an image capturing unit are input, and image blur of each of the plurality of images are corrected by coded exposure processing. Relative moving amounts between the plurality of deblurred images are calculated. Positions of the plurality of deblurred images are corrected based on the relative moving amounts. The plurality of images, on which the position correction is performed, are synthesized.Type: GrantFiled: June 10, 2010Date of Patent: October 16, 2012Assignee: Canon Kabushiki KaishaInventor: Shohei Tsutsumi
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Publication number: 20120236168Abstract: To provide an image including no blur from a plurality of images acquired by a camera array image capturing device. An image processing device of the present invention is characterized by including an image acquisition unit configured to acquire a plurality of images captured by a camera array image capturing device having a plurality of image capturing units the exposure conditions of which are different from one another, an overlap region calculation unit configured to calculate an overlap region in which field angles overlap in the plurality of image capturing units from the acquired plurality of images, and a blurred image detection unit configured to detect an image including a blur using a region image of the plurality of images corresponding to the overlap region calculated by the overlap region calculation unit.Type: ApplicationFiled: March 8, 2012Publication date: September 20, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Shohei Tsutsumi
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Patent number: 8180149Abstract: This invention reduces the image data capacity by using PQR (spectral auxiliary coefficients) in addition to CIELAB (fundamental stimulus values). To accomplish this, there is provided an image processing apparatus which inputs image data representing an image, and performs an image process. The image data has a fundamental stimulus value and spectral auxiliary coefficient. The data amount of the fundamental stimulus value is constant regardless of the image area, and that of the spectral auxiliary coefficient changes in accordance with the image area.Type: GrantFiled: October 17, 2008Date of Patent: May 15, 2012Assignee: Canon Kabushiki KaishaInventor: Shohei Tsutsumi
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Publication number: 20110293197Abstract: A weighting coefficient sequence defining unit generates an array in which weighting coefficients are held at positions defined by the directional components of blur vectors, and adjusts the weighting coefficients to increase the sum of the frequency components of the array or reduce variations of the frequency components. A weighting unit multiplies respective captured images by corresponding weighting coefficients, generating L weighted captured images. The weighting unit then generates the synthesized image of the L weighted captured images. A corrected image generation unit performs deconvolution processing using the frequency component of the array in which the weighting coefficients are held at positions defined by the directional components of blur vectors, and the frequency component of the synthesized image. The corrected image generation unit performs an inverse frequency transform for the deconvolution processing result, generating an output image.Type: ApplicationFiled: May 10, 2011Publication date: December 1, 2011Applicant: CANON KABUSHIKI KAISHAInventor: Shohei Tsutsumi
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Publication number: 20100321510Abstract: A plurality of images captured by an image capturing unit are input, and image blur of each of the plurality of images are corrected by coded exposure processing. Relative moving amounts between the plurality of deblurred images are calculated. Positions of the plurality of deblurred images are corrected based on the relative moving amounts. The plurality of images, on which the position correction is performed, are synthesized.Type: ApplicationFiled: June 10, 2010Publication date: December 23, 2010Applicant: CANON KABUSHIKI KAISHAInventor: Shohei Tsutsumi
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Patent number: 7830568Abstract: An output color is calculated from a fundamental stimulus value and a spectral support coefficient which indicate an input color using a calculation unit for calculating an output color corresponding to the input fundamental stimulus value and the input spectral support coefficient using a table whose inputs are a fundamental stimulus value and a spectral support coefficient. The interval of grid points of the table are uneven regarding the spectral support coefficient, and the interval in the vicinity whose relevant spectral support coefficient is zero is small as compared with the interval in the vicinity whose spectral support coefficient has a great absolute value.Type: GrantFiled: March 29, 2007Date of Patent: November 9, 2010Assignee: Canon Kabushiki KaishaInventor: Shohei Tsutsumi
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Publication number: 20100260416Abstract: This invention reduces the image data capacity by using PQR (spectral auxiliary coefficients) in addition to CIELAB (fundamental stimulus values). To accomplish this, there is provided an image processing apparatus which inputs image data representing an image, and performs an image process. The image data has a fundamental stimulus value and spectral auxiliary coefficient. The data amount of the fundamental stimulus value is constant regardless of the image area, and that of the spectral auxiliary coefficient changes in accordance with the image area.Type: ApplicationFiled: October 17, 2008Publication date: October 14, 2010Applicant: CANON KABUSHIKI KAISHAInventor: Shohei Tsutsumi
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Publication number: 20100231941Abstract: This invention reduces an increasing capacity of image data by using PQR (spectral auxiliary coefficients) in addition to CIELAB (fundamental stimulus values), compared to conventional CIELAB. To accomplish this, image data holding fundamental stimulus values and spectral auxiliary coefficients is input. Output colors corresponding the input fundamental stimulus values and spectral auxiliary coefficients are calculated. An image size corresponding to the spectral auxiliary coefficient is smaller than that corresponding to the fundamental stimulus.Type: ApplicationFiled: October 17, 2008Publication date: September 16, 2010Applicant: CANON KABUSHIKI KAISHAInventor: Shohei Tsutsumi
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Patent number: 7436545Abstract: If an ink for a particular color (for example, red) having an excellent color developing characteristic is used in addition to inks for three primary colors of subtractive color mixture, the high color reproducibility is to be maintained for a long period. To accomplish this, at least one (for example, a yellow ink) of the inks of two colors between which the hue angle of red, included in the three primary colors, is sandwiched is applied to an area of a printing medium to which a red ink is applied so that the inks overlap each other. Thus, the yellow ink, having a high weatherability, is applied to an area on the printing medium to which only the red ink, having a low weatherability, is otherwise applied. It is therefore possible to improve the weatherability while maintaining the color developing characteristic at a high level.Type: GrantFiled: August 11, 2004Date of Patent: October 14, 2008Assignee: Canon Kabushiki KaishaInventors: Hiroshi Tomioka, Hiroyuki Takuhara, Tsuyoshi Kanke, Shin-ichi Tochihara, Shohei Tsutsumi
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Publication number: 20080239417Abstract: An output color is calculated from a fundamental stimulus value and a spectral support coefficient which indicate an input color using a calculation unit for calculating an output color corresponding to the input fundamental stimulus value and the input spectral support coefficient using a table whose inputs are a fundamental stimulus value and a spectral support coefficient. The interval of grid points of the table are uneven regarding the spectral support coefficient, and the interval in the vicinity whose relevant spectral support coefficient is zero is small as compared with the interval in the vicinity whose spectral support coefficient has a great absolute value.Type: ApplicationFiled: March 29, 2007Publication date: October 2, 2008Applicant: CANON KABUSHIKI KAISHAInventor: Shohei Tsutsumi
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Patent number: 6993919Abstract: The electrode temperature control device in a processing apparatus 100 includes a freezing circuit 110 comprising a compressor 148, a condenser 142, an expansion valve 150 and an evaporator 108 with the evaporator disposed inside a lower electrode 106. This electrode temperature control device does not require components such as a coolant tank for storing the coolant, a pump for supplying the coolant to the processing apparatus, a heater for adjusting the temperature of the coolant and a heat exchanger for exchanging heat between a primary coolant and a secondary coolant. Thus, the production cost can be lowered, a reduction in installation area through miniaturization of the apparatus is achieved and more efficient use of energy is achieved as well. In addition, by using CO2 as the coolant, the GWP value can be reduced to approximately 1/8000 to 1/7000 that of Freon.Type: GrantFiled: March 10, 2005Date of Patent: February 7, 2006Assignees: Tokyo Electron Limited, Daikin Industries, Ltd.Inventors: Takaaki Hirooka, Masao Furuya, Shohei Tsutsumi
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Publication number: 20050155373Abstract: The electrode temperature control device in a processing apparatus 100 includes a freezing circuit 110 comprising a compressor 148, a condenser 142, an expansion valve 150 and an evaporator 108 with the evaporator disposed inside a lower electrode 106. This electrode temperature control device does not require components such as a coolant tank for storing the coolant, a pump for supplying the coolant to the processing apparatus, a heater for adjusting the temperature of the coolant and a heat exchanger for exchanging heat between a primary coolant and a secondary coolant. Thus, the production cost can be lowered, a reduction in installation area through miniaturization of the apparatus is achieved and more efficient use of energy is achieved as well. In addition, by using CO2 as the coolant, the GWP value can be reduced to approximately {fraction (1/8000)} to {fraction (1/7000)} that of Freon.Type: ApplicationFiled: March 10, 2005Publication date: July 21, 2005Inventors: Takaaki Hirooka, Masao Furuya, Shohei Tsutsumi
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Publication number: 20050041083Abstract: If an ink for a particular color (for example, red) having an excellent color developing characteristic is used in addition to inks for three primary colors of subtractive color mixture, the high color reproducibility is to be maintained for a long period. To accomplish this, at least one (for example, a yellow ink) of the inks of two colors between which the hue angle of red, included in the three primary colors, is sandwiched is applied to an area of a printing medium to which a red ink is applied so that the inks overlap each other. Thus, the yellow ink, having a high weatherability, is applied to an area on the printing medium to which only the red ink, having a low weatherability, is otherwise applied. It is therefore possible to improve the weatherability while maintaining the color developing characteristic at a high level.Type: ApplicationFiled: August 11, 2004Publication date: February 24, 2005Applicant: CANON KABUSHIKI KAISHAInventors: Hiroshi Tomioka, Hiroyuki Takuhara, Tsuyoshi Kanke, Shin-ichi Tochihara, Shohei Tsutsumi