Patents by Inventor Tomohiko Shimoyama
Tomohiko Shimoyama 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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Patent number: 11514606Abstract: An information processing apparatus acquires a plurality of captured images captured by a plurality of image capturing devices, the plurality of captured images having imaging time codes that match each other, the plurality of captured images being used for generating a virtual viewpoint image, executes a detection process for detecting a predetermined image pattern on the plurality of captured images, and determines parameters on positions of the plurality of image capturing devices and orientations from the plurality of image capturing devices based on a result of the detection process for detecting the predetermined image pattern on the plurality of captured images having the imaging time codes that match each other.Type: GrantFiled: April 30, 2020Date of Patent: November 29, 2022Assignee: Canon Kabushiki KaishaInventor: Tomohiko Shimoyama
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Publication number: 20200258257Abstract: An information processing apparatus acquires a plurality of captured images captured by a plurality of image capturing devices, the plurality of captured images having imaging time codes that match each other, the plurality of captured images being used for generating a virtual viewpoint image, executes a detection process for detecting a predetermined image pattern on the plurality of captured images, and determines parameters on positions of the plurality of image capturing devices and orientations from the plurality of image capturing devices based on a result of the detection process for detecting the predetermined image pattern on the plurality of captured images having the imaging time codes that match each other.Type: ApplicationFiled: April 30, 2020Publication date: August 13, 2020Inventor: Tomohiko Shimoyama
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Patent number: 9715765Abstract: A display control unit causes a display device to display the synthesized image in a case where the determination unit does not determine that the error region exists in the synthesized image, and causes the display device to display the physical space image in a case where the determination unit does determine that the error region exists in the synthesized image.Type: GrantFiled: October 29, 2014Date of Patent: July 25, 2017Assignee: Canon Kabushiki KaishaInventors: Makoto Oikawa, Masahiro Suzuki, Tomohiko Shimoyama, Akihiro Katayama
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Patent number: 9070215Abstract: If the size of an error portion within an image of the frame of interest is equal to or larger than a threshold and it is determined that no error portion exists within an image of a frame immediately before the frame of interest, a display unit (115) is caused to display the image of the frame immediately before the frame of interest as the image of the frame of interest. If the size of an error portion within the image of the frame of interest is smaller than the threshold and it is determined that an error portion exists within the image of the frame immediately before the frame of interest, the display unit (115) is caused to display a result obtained by correcting the error portion within the image of the frame of interest using a pixel group surrounding the error portion.Type: GrantFiled: May 27, 2008Date of Patent: June 30, 2015Assignee: CANON KABUSHIKI KAISHAInventors: Makoto Oikawa, Masahiro Suzuki, Tomohiko Shimoyama, Akihiro Katayama
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Publication number: 20150049115Abstract: If the size of an error portion within an image of the frame of interest is equal to or larger than a threshold and it is determined that no error portion exists within an image of a frame immediately before the frame of interest, a display unit (115) is caused to display the image of the frame immediately before the frame of interest as the image of the frame of interest. If the size of an error portion within the image of the frame of interest is smaller than the threshold and it is determined that an error portion exists within the image of the frame immediately before the frame of interest, the display unit (115) is caused to display a result obtained by correcting the error portion within the image of the frame of interest using a pixel group surrounding the error portion.Type: ApplicationFiled: October 29, 2014Publication date: February 19, 2015Inventors: Makoto Oikawa, Masahiro Suzuki, Tomohiko Shimoyama, Akihiro Katayama
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Patent number: 8804127Abstract: An OCT apparatus that photographs with a plurality of measuring beams concurrently, has a mechanism for adjusting the optical path length of a reference beam for each measuring beam. Accordingly, when tomographic images photographed in this manner are displayed side by side, because the depth of photographing varies from one tomographic image to another, it is difficult for an operator to comprehend the positional relation between the photographed images. In displaying tomographic images acquired with a plurality of measuring beams, the display position of each tomographic image is adjusted based on the changed optical path length of a reference beam of the measuring beam used for the image. The tomographic images are thus aligned in height and are presented in a manner that is easy for the operator to comprehend the positional relation between the photographed images.Type: GrantFiled: August 8, 2011Date of Patent: August 12, 2014Assignee: Canon Kabushiki KaishaInventors: Tomohiko Shimoyama, Nobuhito Suehira, Yukio Sakagawa
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Publication number: 20130011035Abstract: An imaging apparatus according to the present invention is configured such that a plurality of measuring beams is directed within a predetermined length of time on overlapping regions or adjacent regions out of scanning areas of an eye to be examined corresponding to the plurality of measuring beams.Type: ApplicationFiled: March 29, 2011Publication date: January 10, 2013Applicant: CANON KABUSHIKI KAISHAInventors: Tomohiko Shimoyama, Takeshi Kitamura, Kenji Muto
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Patent number: 8345952Abstract: A first process to be executed by an apparatus and a second process to be executed by an apparatus to obtain a composite image by compositing a real space image with a virtual space image are determined by negotiation. The apparatus (101) transmits data necessary for executing the second process to the apparatus. The apparatus executes the second process by using the data and transmits the process result to the apparatus. The apparatus receives the process result by the apparatus and executes the first process. The apparatus displays a composite image obtained on the basis of the result of the first process or a composite image obtained on the basis of the process result and the received process result.Type: GrantFiled: April 11, 2007Date of Patent: January 1, 2013Assignee: Canon Kabushiki KaishaInventors: Takuya Tsujimoto, Hiroyuki Yamamoto, Akihiro Katayama, Tomohiko Shimoyama
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Publication number: 20120044499Abstract: An OCT apparatus that photographs with a plurality of measuring beams concurrently has a mechanism for adjusting the optical path length of a reference beam for each measuring beam. Accordingly, when tomographic images photographed in this manner are displayed side by side, because the depth of photographing varies from one tomographic image to another, it is difficult for an operator to comprehend the positional relation between the photographed images. In displaying tomographic images acquired with a plurality of measuring beams, the display position of each tomographic image is adjusted based on the changed optical path length of a reference beam of the measuring beam used for the image. The tomographic images are thus aligned in height and are presented in a manner that is easy for the operator to comprehend the positional relation between the photographed images.Type: ApplicationFiled: August 8, 2011Publication date: February 23, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Tomohiko Shimoyama, Nobuhito Suehira, Yukio Sakagawa
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Patent number: 8045825Abstract: A left-eye color discrimination unit (1101) and right-eye color discrimination unit (1102) generate mask images from virtual space images. If an error part exists at the boundary between a chroma key region and non-chroma key region in the mask image, each of a left-eye mask correction unit (1108) and right-eye mask correction unit (1110) corrects the error part using another mask image generated based on the other virtual space image in addition to the virtual space image.Type: GrantFiled: April 24, 2008Date of Patent: October 25, 2011Assignee: Canon Kabushiki KaishaInventors: Tomohiko Shimoyama, Takuya Tsujimoto, Tomohiko Takayama
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Patent number: 8019148Abstract: By applying identification processing to each index included in a captured image, a set of an identifier, image coordinates, and an image number is acquired for each index, and the acquired set is registered in a data saving unit. The data saving unit manages the numbers of times of previous identification for respective identifiers. A display unit displays the number of times managed in association with an identifier in a set to be registered every time the set is registered. An index position and orientation calculation unit calculates the positions and orientations of indices corresponding to a set group using the set group registered in a memory.Type: GrantFiled: March 19, 2008Date of Patent: September 13, 2011Assignee: Canon Kabushiki KaishaInventors: Kenji Morita, Daisuke Kotake, Tomohiko Shimoyama
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Publication number: 20080297436Abstract: If the size of an error portion within an image of the frame of interest is equal to or larger than a threshold and it is determined that no error portion exists within an image of a frame immediately before the frame of interest, a display unit (115) is caused to display the image of the frame immediately before the frame of interest as the image of the frame of interest. If the size of an error portion within the image of the frame of interest is smaller than the threshold and it is determined that an error portion exists within the image of the frame immediately before the frame of interest, the display unit (115) is caused to display a result obtained by correcting the error portion within the image of the frame of interest using a pixel group surrounding the error portion.Type: ApplicationFiled: May 27, 2008Publication date: December 4, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Makoto Oikawa, Masahiro Suzuki, Tomohiko Shimoyama, Akihiro Katayama
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Publication number: 20080291219Abstract: Position and orientation information indicating the relative position and orientation relationship between the viewpoint of the observer and a physical space object on a physical space is acquired. A virtual space image is generated based on the acquired position and orientation information, and is rendered on a memory. A physical space image of the physical space object is acquired. By rendering the acquired physical space image on the memory on which the virtual space image has already been rendered, the physical space image and the virtual space image are combined. The obtained composite image is output.Type: ApplicationFiled: May 2, 2008Publication date: November 27, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Kenji Morita, Tomohiko Shimoyama
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Publication number: 20080267523Abstract: A left-eye color discrimination unit (1101) and right-eye color discrimination unit (1102) generate mask images from virtual space images. If an error part exists at the boundary between a chroma key region and non-chroma key region in the mask image, each of a left-eye mask correction unit (1108) and right-eye mask correction unit (1110) corrects the error part using another mask image generated based on the other virtual space image in addition to the virtual space image.Type: ApplicationFiled: April 24, 2008Publication date: October 30, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Tomohiko Shimoyama, Takuya Tsujimoto, Tomohiko Takayama
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Publication number: 20080240550Abstract: By applying identification processing to each index included in a captured image, a set of an identifier, image coordinates, and an image number is acquired for each index, and the acquired set is registered in a data saving unit. The data saving unit manages the numbers of times of previous identification for respective identifiers. A display unit displays the number of times managed in association with an identifier in a set to be registered every time the set is registered. An index position and orientation calculation unit calculates the positions and orientations of indices corresponding to a set group using the set group registered in a memory.Type: ApplicationFiled: March 19, 2008Publication date: October 2, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Kenji Morita, Daisuke Kotake, Tomohiko Shimoyama
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Patent number: 7365706Abstract: An image composition system includes an HMD (100) having a right-eye camera (110), a left-eye camera (111), a right-eye LCD (130) and a left-eye LCD (131) for displaying a real image, and the like, and an information processing apparatus (300) for generating another image different from the real image. A composite image obtained by superimposing the other image generated by the information processing apparatus (300) on the real image captured by the right-eye camera (110) and left-eye camera (111) is displayed on the right-eye LCD (130) and left-eye LCD (131). The display region of the other image is determined based on the position and posture of the head of the user who wears the HMD (100). The user can observe the other image superimposed on the real image at an appropriate position while wearing the HMD on his or her head.Type: GrantFiled: September 10, 2003Date of Patent: April 29, 2008Assignee: Canon Kabushiki KaishaInventors: Tomohiko Shimoyama, Kenji Morita, Hiroki Yonezawa
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Publication number: 20070242086Abstract: A first process to be executed by an apparatus and a second process to be executed by an apparatus to obtain a composite image by compositing a real space image with a virtual space image are determined by negotiation. The apparatus (101) transmits data necessary for executing the second process to the apparatus. The apparatus executes the second process by using the data and transmits the process result to the apparatus. The apparatus receives the process result by the apparatus and executes the first process. The apparatus displays a composite image obtained on the basis of the result of the first process or a composite image obtained on the basis of the process result and the received process result.Type: ApplicationFiled: April 11, 2007Publication date: October 18, 2007Inventors: Takuya Tsujimoto, Hiroyuki Yamamoto, Akihiro Katayama, Tomohiko Shimoyama
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Patent number: 7120296Abstract: An information processing method, comprising acquiring a photographed image of a color sample including specific color markers, binarizing a signal indicating luminosity of the photographed image, detecting a marker area, plotting a color signal of the marker area on a color plane, labeling for a plotting result, and setting a color recognition parameter for identifying the color area of the specific color markers from the labeling result.Type: GrantFiled: February 12, 2003Date of Patent: October 10, 2006Assignee: Canon Kabushiki KaishaInventor: Tomohiko Shimoyama
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Patent number: 7038699Abstract: This invention has as its object to provide a high-quality composite image of a real image and virtual image to a viewer or the like. To achieve this object, the position/posture of photographing means for photographing a performer or the like is measured, the position/posture of an HMD, which the performer or the like wears, and which allows the viewer to see through the external world, is measured, a CG at the viewpoint of the photographing means and image data photographed by the photographing means are aligned and composited on the basis of the measurement result of the position/posture of the photographing means, CG at the viewpoint of the HMD and image data photographed by a camera built in the HMD are aligned and composited on the basis of the measurement result of the position/posture of the HMD, and image data is displayed on the HMD.Type: GrantFiled: March 12, 2002Date of Patent: May 2, 2006Assignee: Canon Kabushiki KaishaInventors: Hiroaki Sato, Takashi Aso, Tomoaki Kawai, Yoshio Iizuka, Kenji Morita, Tomohiko Shimoyama, Taichi Matsui
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Publication number: 20040056870Abstract: An image composition system includes an HMD (100) having a right-eye camera (110), a left-eye camera (111), a right-eye LCD (130) and a left-eye LCD (131) for displaying a real image, and the like, and an information processing apparatus (300) for generating another image different from the real image. A composite image obtained by superimposing the other image generated by the information processing apparatus (300) on the real image captured by the right-eye camera (110) and left-eye camera (111) is displayed on the right-eye LCD (130) and left-eye LCD (131). The display region of the other image is determined based on the position and posture of the head of the user who wears the HMD (100). The user can observe the other image superimposed on the real image at an appropriate position while wearing the HMD on his or her head.Type: ApplicationFiled: September 10, 2003Publication date: March 25, 2004Applicant: Canon Kabushiki KaishaInventors: Tomohiko Shimoyama, Kenji Morita, Hiroki Yonezawa