Patents by Inventor Naohito Nakamura
Naohito Nakamura 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: 20240135660Abstract: An information processing apparatus includes at least one memory and at least one processor which function as: a display control unit configured to perform display control of a virtual object such that the virtual object is placed in a three-dimensional space that serves as a field of view of a user; a setting unit configured to set a selection range in the three-dimensional space based on a plurality of positions differently distanced from the user, the plurality of positions being designated by using an operation body located at a position of a hand of the user; and a selection unit configured to switch a state of the virtual object between a selected state and a deselected state based on the selection range.Type: ApplicationFiled: October 9, 2023Publication date: April 25, 2024Inventor: Naohito NAKAMURA
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Publication number: 20230368483Abstract: An information processing apparatus according to the present invention acquires information indicating a position or an orientation of an object for operating a virtual object; and controls a position or an orientation of a graphic corresponding to the object on a basis of the acquired information, wherein the position or the orientation of the graphic in a first state is controlled on a basis of first information that is information indicating the position or the orientation of the graphic in the first state in which the information is acquired with accuracy higher than predetermined accuracy and second information that is information indicating the position or the orientation of the graphic in a second state in which the information is not acquired with the accuracy higher than the predetermined accuracy.Type: ApplicationFiled: April 26, 2023Publication date: November 16, 2023Inventor: Naohito NAKAMURA
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Publication number: 20230252729Abstract: An information processing apparatus includes an acquisition unit configured to acquire a position and orientation of a virtual viewpoint and a position and orientation of each of one or more virtual objects, a movement unit configured to move the virtual viewpoint, a control unit configured to control each of the one or more virtual objects to be interlocked or not to be interlocked with movement of the virtual viewpoint based on whether the virtual object satisfies a predetermined condition, and a generation unit configured to generate a virtual image including the controlled one or more virtual objects at a viewpoint as a result of moving the virtual viewpoint.Type: ApplicationFiled: February 1, 2023Publication date: August 10, 2023Inventors: NAOHITO NAKAMURA, TAKABUMI WATANABE
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Publication number: 20230083677Abstract: An information processing apparatus includes a first acquisition unit configured to acquire a position and orientation of a display apparatus capable of displaying one or more virtual objects, a second acquisition unit configured to acquire a position and orientation of a target virtual object out of the one or more virtual objects, and a control unit configured to determine a method of displaying the target virtual object on the display apparatus based on the position and orientation of the display apparatus and the position and orientation of the target virtual object.Type: ApplicationFiled: November 15, 2022Publication date: March 16, 2023Inventors: Takanori Katsumata, Naohito Nakamura
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Patent number: 11527020Abstract: An information processing apparatus includes a first acquisition unit configured to acquire a position and orientation of a display apparatus capable of displaying one or more virtual objects, a second acquisition unit configured to acquire a position and orientation of a target virtual object out of the one or more virtual objects, and a control unit configured to determine a method of displaying the target virtual object on the display apparatus based on the position and orientation of the display apparatus and the position and orientation of the target virtual object.Type: GrantFiled: February 25, 2021Date of Patent: December 13, 2022Assignee: Canon Kabushiki KaishaInventors: Takanori Katsumata, Naohito Nakamura
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Publication number: 20220230393Abstract: An image processing apparatus includes a detection unit that detects an area of a target object from an image captured by an image capturing apparatus, a first model generation unit that generates a front surface model representing a front surface of the target object based on the area of the target object, and a second model generation unit that generates a back surface model representing a back surface of the target object based on points provided by movement of a plurality of points on the front surface model by a distance corresponding to a thickness of the target object in respective normal directions.Type: ApplicationFiled: January 19, 2022Publication date: July 21, 2022Inventors: Shogo Sato, Naohito Nakamura
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Publication number: 20210272329Abstract: An information processing apparatus includes a first acquisition unit configured to acquire a position and orientation of a display apparatus capable of displaying one or more virtual objects, a second acquisition unit configured to acquire a position and orientation of a target virtual object out of the one or more virtual objects, and a control unit configured to determine a method of displaying the target virtual object on the display apparatus based on the position and orientation of the display apparatus and the position and orientation of the target virtual object.Type: ApplicationFiled: February 25, 2021Publication date: September 2, 2021Inventors: Takanori Katsumata, Naohito Nakamura
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Patent number: 9007399Abstract: In an information processing apparatus, a virtual object shape storage unit acquires the position of an operation unit, sets a virtual plane at the acquired position in the virtual space, and records the trajectory of the operation unit after the virtual plane is set. The virtual object shape storage unit then obtains a projection trajectory by projecting the trajectory onto the virtual plane, and records the obtained projection trajectory as contour data representing the contour of a target virtual object on the virtual plane. And then, the apparatus acquires a position and orientation of a viewpoint of the user, and generates and outputs an image of the virtual space seen from the viewpoint on the basis of the acquired position and orientation, the virtual space including the virtual plane and the virtual object having the contour represented by the contour data.Type: GrantFiled: August 25, 2011Date of Patent: April 14, 2015Assignee: Canon Kabushiki KaishaInventors: Yasumi Tanaka, Naohito Nakamura
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Patent number: 8994729Abstract: An image processing apparatus comprises a simulation unit which performs a simulation of operation of an object and a display unit which generates based on a result of the simulation an image in which a virtual object is operating and displays the image. The apparatus further comprises a calculating unit which calculates a position and orientation of a predetermined part of an observer who observes the virtual object being displayed, and a generating unit which generates a parameter for use in the simulation based on the position and orientation of the predetermined part of the observer and the position and orientation of the virtual object. This structure makes it possible to set parameters of simulation in a virtual-reality or mixed-reality space through manipulation performed by the observer.Type: GrantFiled: June 21, 2010Date of Patent: March 31, 2015Assignee: Canon Kabushiki KaishaInventor: Naohito Nakamura
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Patent number: 8823779Abstract: A technique for reducing the time required before a tracking process is performed again in calculating the position and orientation of an image capturing apparatus or an object. Images captured by the apparatus are acquired, the acquired images are stored in order per frame, straight lines detected in the captured images and straight lines in a three-dimensional space model are matched, the position and orientation of the apparatus are initialized by obtaining correspondences having the highest consistency, a captured image to be processed is selected from the captured images, the change in position and orientation of the apparatus is measured using the change in position and orientation of a target object in the selected image based on the initialized position and orientation of the apparatus, and if the measured change in position and orientation is not within a predetermined threshold, initialization is performed using the selected image.Type: GrantFiled: April 20, 2010Date of Patent: September 2, 2014Assignee: Canon Kabushiki KaishaInventors: Naohito Nakamura, Kenji Morita, Daisuke Kotake, Kazuki Takemoto
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Patent number: 8249393Abstract: An index detection unit (1040) detects the coordinate values of indices in a sensed image sensed by an image sensing device (1020) attached with an orientation sensor (1010). A contribution degree calculation unit (1070) acquires contribution degrees according to a frequency at which the image sensing device (1020) is located to have an orientation indicated by orientation information included in the position and orientation information of the image sensing device (1020) at the time of image sensing. A data management unit (1060) generates sets of the coordinate values and orientation information measured by the orientation sensor (1010) at the time of sensing of the sensed image for respective indices. A calibration information calculation unit (1090) calculates an orientation of the orientation sensor (1010) with respect to the image sensing device (1020) using the position and orientation information, parameter values, and the sets generated for the respective indices.Type: GrantFiled: January 27, 2009Date of Patent: August 21, 2012Assignee: Canon Kabushiki KaishaInventor: Naohito Nakamura
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Publication number: 20120050281Abstract: In an information processing apparatus, a virtual object shape storage unit acquires the position of an operation unit, sets a virtual plane at the acquired position in the virtual space, and records the trajectory of the operation unit after the virtual plane is set. The virtual object shape storage unit then obtains a projection trajectory by projecting the trajectory onto the virtual plane, and records the obtained projection trajectory as contour data representing the contour of a target virtual object on the virtual plane. And then, the apparatus acquires a position and orientation of a viewpoint of the user, and generates and outputs an image of the virtual space seen from the viewpoint on the basis of the acquired position and orientation, the virtual space including the virtual plane and the virtual object having the contour represented by the contour data.Type: ApplicationFiled: August 25, 2011Publication date: March 1, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Yasumi Tanaka, Naohito Nakamura
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Patent number: 7944511Abstract: A front-end module for receiving analog and digital broadcast signals is provided. The front-end module includes frequency conversion means, digital satellite demodulation means, intermediate frequency conversion means, analog demodulation means, digital terrestrial demodulation means, filtering means, and a grounding arrangement common to a digital and an analog circuit sections.Type: GrantFiled: October 17, 2006Date of Patent: May 17, 2011Assignee: Sony CorporationInventors: Koki Tsukahara, Masatomo Miyashita, Naohito Nakamura, Mitsuru Ikeda
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Publication number: 20100321383Abstract: An image processing apparatus comprises a simulation unit which performs a simulation of operation of an object and a display unit which generates based on a result of the simulation an image in which a virtual object is operating and displays the image. The apparatus further comprises a calculating unit which calculates a position and orientation of a predetermined part of an observer who observes the virtual object being displayed, and a generating unit which generates a parameter for use in the simulation based on the position and orientation of the predetermined part of the observer and the position and orientation of the virtual object. This structure makes it possible to set parameters of simulation in a virtual-reality or mixed-reality space through manipulation performed by the observer.Type: ApplicationFiled: June 21, 2010Publication date: December 23, 2010Applicant: CANON KABUSHIKI KAISHAInventor: Naohito Nakamura
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Publication number: 20100277572Abstract: A technique for reducing the time required before a tracking process is performed again in calculating the position and orientation of an image capturing apparatus or an object. Images captured by the apparatus are acquired, the acquired images are stored in order per frame, straight lines detected in the captured images and straight lines in a three-dimensional space model are matched, the position and orientation of the apparatus are initialized by obtaining correspondences having the highest consistency, a captured image to be processed is selected from the captured images, the change in position and orientation of the apparatus is measured using the change in position and orientation of a target object in the selected image based on the initialized position and orientation of the apparatus, and if the measured change in position and orientation is not within a predetermined threshold, initialization is performed using the selected image.Type: ApplicationFiled: April 20, 2010Publication date: November 4, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Naohito Nakamura, Kenji Morita, Daisuke Kotake, Kazuki Takemoto
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Publication number: 20090195557Abstract: An index detection unit (1040) detects the coordinate values of indices in a sensed image sensed by an image sensing device (1020) attached with an orientation sensor (1010). A contribution degree calculation unit (1070) acquires contribution degrees according to a frequency at which the image sensing device (1020) is located to have an orientation indicated by orientation information included in the position and orientation information of the image sensing device (1020) at the time of image sensing. A data management unit (1060) generates sets of the coordinate values and orientation information measured by the orientation sensor (1010) at the time of sensing of the sensed image for respective indices. A calibration information calculation unit (1090) calculates an orientation of the orientation sensor (1010) with respect to the image sensing device (1020) using the position and orientation information, parameter values, and the sets generated for the respective indices.Type: ApplicationFiled: January 27, 2009Publication date: August 6, 2009Applicant: CANON KABUSHIKI KAISHAInventor: Naohito Nakamura
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Patent number: 7561212Abstract: A factor in deterioration of receiving characteristics of an antenna is automatically determined and automatically improved. In an apparatus for receiving digital broadcast signal, when receiving the signal, a received signal sent from the antenna 1 is orthogonally detected to a baseband signal; an average value of amplitude in radial direction of signal points of phase mapping of the baseband signal is then measured to calculate a C/N value for the received signal; an average value of amplitude in circumferential direction of signal points of the phase mapping of the baseband signal is measured to calculate an amount of phase noise of the received signal; a bit-error rate of transport stream that is given by demodulating the baseband signal is then measured; a factor in deterioration for receiving characteristics of the antenna is determined based on these results; and a desired measure mode is set based on the determination result thereof.Type: GrantFiled: July 9, 2004Date of Patent: July 14, 2009Assignee: Sony CorporationInventor: Naohito Nakamura
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Publication number: 20070118859Abstract: A front-end module for receiving analog and digital broadcast signals is provided. The front-end module includes frequency conversion means, digital satellite demodulation means, intermediate frequency conversion means, analog demodulation means, digital terrestrial demodulation means, filtering means, and a grounding arrangement common to a digital and an analog circuit sections.Type: ApplicationFiled: October 17, 2006Publication date: May 24, 2007Applicant: SONY CORPORATIONInventors: Koki Tsukahara, Masatomo Miyashita, Naohito Nakamura, Mitsuru Ikeda
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Publication number: 20070060184Abstract: This invention allows a factor in deterioration for receiving characteristics of the antenna to be automatically determined and the deterioration for receiving characteristics to be automatically improved.Type: ApplicationFiled: July 9, 2004Publication date: March 15, 2007Applicant: SONY CORPORATIONInventor: Naohito Nakamura
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Patent number: 6633873Abstract: When a predetermined number of pieces of data are retrieved, a retrieving process is performed first on a local database 7 in a LAN 1, and a response counter 8 counts the number of pieces of response data accumulated in a response accumulation device 9. When it is determined that the predetermined number of pieces of response data cannot be obtained from the local database, a remote database 3 is searched by a retrieval device 6 through a communications device 2. Therefore, requests to search unnecessary databases can be reduced, and the load on a network and the remote database 3 can also be reduced successfully.Type: GrantFiled: August 17, 1999Date of Patent: October 14, 2003Assignee: Fujitsu LimitedInventor: Naohito Nakamura