Patents by Inventor Tetsugo Inada

Tetsugo Inada 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).

  • Patent number: 11039121
    Abstract: Provided is a calibration apparatus that performs calibration by using a captured image of a chart including a plurality of plane surfaces forming a predetermined angle ?. An imaging apparatus simultaneously images chart patterns depicted on each of the plane surfaces of the chart. In this instance, the chart pattern depicted on each of the plane surfaces of the chart is inversely projected in accordance with a distance from an imaging plane such that patterns in which feature points are uniformly distributed within the captured image are obtained.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: June 15, 2021
    Assignee: Sony Interactive Entertainment Inc.
    Inventors: Yoshihiro Myokan, Tetsugo Inada, Junichi Muramoto
  • Publication number: 20210154579
    Abstract: Methods and apparatus provide for acquiring position information about a head-mounted display; performing information processing using the position information about the head-mounted display; generating and outputting data of an image to be displayed as a result of the information processing; and generating and outputting data of an image of a user guide indicating position information about a user in a real space using the position information about the head-mounted display, where the generating and outputting data of the image of the user guide includes determining whether to display the user guide in response to one of: (i) a user operation, and (ii) regardless of the user operation.
    Type: Application
    Filed: February 5, 2021
    Publication date: May 27, 2021
    Applicant: Sony Interactive Entertainment Inc.
    Inventors: Shoichi Ikenoue, Tatsuo Tsuchie, Tetsugo Inada, Masaki Uchida, Hirofumi Okamoto
  • Patent number: 10974148
    Abstract: As a user guide, the state of overlooking a real space including an imaging device and a user is presented by one of two images: an image in reference to the position of the imaging device, or an image in reference to the user's direction. In both images, a rectangle indicative of the imaging device and a circle representative of the user are presented in a manner reflecting the actual positional relations and directions involved. Also presented are an area denoting a play area in the horizontal direction determined by a camera angle of view for example, and an arrow pointing to the direction in which the user is to move.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: April 13, 2021
    Assignee: Sony Interactive Entertainment Inc.
    Inventors: Shoichi Ikenoue, Tatsuo Tsuchie, Tetsugo Inada, Masaki Uchida, Hirofumi Okamoto
  • Patent number: 10957070
    Abstract: An operation object includes a polyhedron. The polyhedron includes characteristic surfaces formed by cutting each vertex of a cube at different angles. An information processing apparatus acquires a normal vector of each surface from a polarized image thereof. Further, the information processing apparatus identifies the characteristic surface by defining, as a characteristic amount, an angle formed by an average vector Na of normal vectors N1, N2, and N3 of reference surfaces that orthogonally intersect each other and a normal vector N0 of the characteristic surface surrounded by the reference surfaces. The specification result and the normal vectors thereof are used to acquire the position and orientation of the operation object.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: March 23, 2021
    Assignee: Sony Interactive Entertainment Inc.
    Inventors: Takayuki Ishida, Akio Ohba, Tetsugo Inada
  • Patent number: 10885656
    Abstract: [Object] To perform more stable and highly accurate attitude estimation. [Solution] The attitude optimization unit optimizes the articulation position, the angle, the number of articulations, and the like which are attitude parameters of a human body model (tree structure) by a plurality of optimization techniques so as to match a region in which a human body can exist, and switches among a plurality of optimization techniques and uses an optimum technique. Note that optimization techniques include 1. initial value, 2. algorithm, and 3, restriction, and optimization is performed by switching among these three. For example, it is possible to apply the present disclosure to an image processing device that performs image processing of optimizing the articulation position and angle of a human body model.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: January 5, 2021
    Assignees: Sony Corporation, Sony Interactive Entertainment Inc.
    Inventors: Atsushi Kimura, Daisuke Tahara, Hiroyuki Segawa, Tetsugo Inada, Akio Ohba, Hirofumi Okamoto
  • Publication number: 20200177866
    Abstract: Provided is a calibration apparatus that performs calibration by using a captured image of a chart including a plurality of plane surfaces forming a predetermined angle ?. An imaging apparatus simultaneously images chart patterns depicted on each of the plane surfaces of the chart. In this instance, the chart pattern depicted on each of the plane surfaces of the chart is inversely projected in accordance with a distance from an imaging plane such that patterns in which feature points are uniformly distributed within the captured image are obtained.
    Type: Application
    Filed: June 20, 2017
    Publication date: June 4, 2020
    Applicant: Sony Interactive Entertainment Inc.
    Inventors: Yoshihiro Myokan, Tetsugo Inada, Junichi Muramoto
  • Patent number: 10559089
    Abstract: An image acquisition block of an information processing apparatus acquires stereo images taken by a first camera and a second camera that make up an imaging apparatus. An input information acquisition block accepts a user manipulation. A first positional information acquisition block of a positional information generation block identifies an approximate position of an object to be imaged through predetermined means. A second positional information acquisition block determines an estimated distance range of a target on the basis of the identified approximate position of the object to be imaged, detects corresponding points by executing block matching on stereo images thorough only a search range corresponding to the determined estimated distance range, and obtains a position of the target with high resolution and accuracy. An output information generation block generates output data on the basis of the position of that target and outputs the generated output data.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: February 11, 2020
    Assignee: Sony Interactive Entertainment Inc.
    Inventors: Tetsugo Inada, Hirofumi Okamoto
  • Patent number: 10507381
    Abstract: A first estimating unit estimates at least one of a position and an attitude of a predetermined object on the basis of an image of a periphery of the object, the image being obtained from an imaging device, and generates an estimation result not including an accumulated error. A second estimating unit estimates at least one of the position and the attitude of the object on the basis of the image, and generates an estimation result including an accumulated error. A correcting unit compares the estimation result of the first estimating unit and the estimation result of the second estimating unit with each other, and corrects, on the basis of a result of the comparison, a subsequent estimation result of the second estimating unit, the subsequent estimation result being subsequent to the estimation result of the second estimating unit which estimation result is used for the comparison.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: December 17, 2019
    Assignees: SONY CORPORATION, SONY INTERACTIVE ENTERTAINMENT INC.
    Inventors: Hiroshi Katoh, Tetsugo Inada, Tatsuki Kashitani, Takaaki Kato
  • Patent number: 10474876
    Abstract: Disclosed herein is an image processing apparatus including: a priority degree setting section configured to set a degree of priority for each of surrounding regions of a plurality of people detected from an input image; and a pose estimation section configured to estimate poses of human body models for human body regions extracted from the input image one after another, on the basis of the surrounding regions of one or more of the people selected using the degrees of priority set by the priority degree setting section.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: November 12, 2019
    Assignee: Sony Interactive Entertainment Inc.
    Inventors: Hiroyuki Segawa, Tetsugo Inada, Akio Ohba, Hirofumi Okamoto, Atsushi Kimura, Daisuke Tahara
  • Patent number: 10469829
    Abstract: An information processor acquires a stereo image from an imaging device. A detection plane definition portion defines a detection plane in a three-dimensional space of a camera coordinate system of a first camera. A feature quantity calculation portion generates feature point image of left and right images. A parallax correction area derivation portion derives an area as a parallax correction area, which is obtained by moving, to a left, an area of the right image identical to the detection area of the left image. A matching portion performs matching for the feature point images of each area, thus deriving a highly rated feature point. A position information output portion generates information to be used by an output information generation section based on the matching result.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: November 5, 2019
    Assignee: Sony Interactive Entertainment Inc.
    Inventors: Akio Ohba, Hiroyuki Segawa, Tetsugo Inada
  • Publication number: 20190295286
    Abstract: An operation object includes a polyhedron. The polyhedron includes characteristic surfaces formed by cutting each vertex of a cube at different angles. An information processing apparatus acquires a normal vector of each surface from a polarized image thereof. Further, the information processing apparatus identifies the characteristic surface by defining, as a characteristic amount, an angle formed by an average vector Na of normal vectors N1, N2, and N3 of reference surfaces that orthogonally intersect each other and a normal vector N0 of the characteristic surface surrounded by the reference surfaces. The specification result and the normal vectors thereof are used to acquire the position and orientation of the operation object.
    Type: Application
    Filed: August 15, 2017
    Publication date: September 26, 2019
    Applicant: Sony Interactive Entertainment Inc.
    Inventors: Takayuki Ishida, Akio Ohba, Tetsugo Inada
  • Patent number: 10334237
    Abstract: An information processing device includes: an information processing section configured to detect a figure of a target object from an image captured from a movie of the target object so as to perform information processing on the detected image; a main data generating section configured to generate data of a main image to be displayed as a result of the information processing; an auxiliary data generating section configured to generate data of an auxiliary image including the captured image; and an output data transmitting section configured to transmit to an output device the main image data and the auxiliary image data in relation to each other such that the main image and the auxiliary image are displayed together.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: June 25, 2019
    Assignee: SONY INTERACTIVE ENTERTAINMENT INC.
    Inventors: Tetsugo Inada, Shoichi Ikenoue
  • Patent number: 10275890
    Abstract: Disclosed herein is an image processing device including a background model creation section adapted to create a plurality of background models based on statistical distribution of a plurality of image frame sets, the image frame sets differing in length of time, and each of the image frame sets including a plurality of input frames; and a background image creation section adapted to create a background image by referring to the plurality of background models.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: April 30, 2019
    Assignee: Sony Interactive Entertainment Inc.
    Inventors: Hiroyuki Segawa, Tetsugo Inada, Akio Ohba, Hirofumi Okamoto, Atsushi Kimura, Daisuke Tahara
  • Patent number: 10244238
    Abstract: A tile image sequence obtained by dividing a frame into a predetermined size is further divided into another predetermined size on an image plane to generate a voxel (for example, a voxel. If a redundancy in a space direction or a time direction exists, then data is reduced in the direction, and sequences in the time direction are deployed on a two-dimensional plane. Voxel images are placed on an image plane of a predetermined size to generate one integrated image. In a grouping pattern which exhibits a minimum quantization error, pixels are collectively placed in the region of each voxel image for each group (integrated image). The integrated image after the re-placement is compressed in accordance with a predetermined compression method to generate a compressed image and reference information for determining the position of a needed pixel.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: March 26, 2019
    Assignee: Sony Interactive Entertainment Inc.
    Inventors: Tetsugo Inada, Akio Ohba, Hiroyuki Segawa
  • Patent number: 10235560
    Abstract: Methods and apparatus provide for: capturing an image of an object, which includes a face of a person wearing an optical display apparatus by which to observe a stereoscopic image that contains a first parallax image and a second parallax image obtained when the object in a three-dimensional (3D) space is viewed from different viewpoints; identifying the optical display apparatus included in the image of the object; and generating an image of the face of the person that does not include the optical display apparatus by excluding the identified optical display apparatus, and instead by adding features of the face of the person to a region in which the identified optical display apparatus is excluded.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: March 19, 2019
    Assignee: Sony Interactive Entertainment Inc.
    Inventors: Akio Ohba, Hiroyuki Segawa, Tetsugo Inada
  • Patent number: 10210629
    Abstract: A detection area is set in a three-dimensional space in which a subject exists. When an actual hand enters the detection area, coordinate points (white and black dots) represented by pixels making up a silhouette of the hand in a depth image enter the detection area. In the detection area, a reference vector is set that shows the direction which the hand should face relative to the shoulder as a reference point. Then, an inner product between two vectors, a vector from the reference point to each of coordinate points and the reference vector, is calculated, followed by comparison between the inner products. Positions of coordinate points whose inner products are ranked high are acquired as the position of tips of the hand.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: February 19, 2019
    Assignee: Sony Interactive Entertainment Inc.
    Inventors: Akio Ohba, Hiroyuki Segawa, Tetsugo Inada, Hidehiko Ogasawara, Hirofumi Okamoto
  • Publication number: 20180361240
    Abstract: As a user guide, the state of overlooking a real space including an imaging device and a user is presented by one of two images: an image in reference to the position of the imaging device, or an image in reference to the user's direction. In both images, a rectangle indicative of the imaging device and a circle representative of the user are presented in a manner reflecting the actual positional relations and directions involved. Also presented are an area denoting a play area in the horizontal direction determined by a camera angle of view for example, and an arrow pointing to the direction in which the user is to move.
    Type: Application
    Filed: January 13, 2017
    Publication date: December 20, 2018
    Applicant: Sony Interactive Entertainment Inc.
    Inventors: Shoichi IKENOUE, Tatsuo TSUCHIE, Tetsugo INADA, Masaki UCHIDA, Hirofumi OKAMOTO
  • Publication number: 20180322651
    Abstract: [Object] To perform more stable and highly accurate attitude estimation. [Solution] The attitude optimization unit optimizes the articulation position, the angle, the number of articulations, and the like which are attitude parameters of a human body model (tree structure) by a plurality of optimization techniques so as to match a region in which a human body can exist, and switches among a plurality of optimization techniques and uses an optimum technique. Note that optimization techniques include 1. initial value, 2. algorithm, and 3, restriction, and optimization is performed by switching among these three. For example, it is possible to apply the present disclosure to an image processing device that performs image processing of optimizing the articulation position and angle of a human body model.
    Type: Application
    Filed: September 29, 2016
    Publication date: November 8, 2018
    Applicants: Sony Corporation, Sony Interactive Entertainment Inc.
    Inventors: Atsushi Kimura, Daisuke Tahara, Hiroyuki Segawa, Tetsugo Inada, Akio Ohba, Hirofumi Okamoto
  • Publication number: 20180316911
    Abstract: This information processing apparatus allows a video display apparatus (40) worn on a head and used by a user to display a stereoscopic video including an object to be operated, and receives a gesture operation to the object by moving a hand by the user, when there is a match between a recognition position in which the user recognizes that the object is present in a real space and a shifted position deviated from a position of the hand of the user by a predetermined amount in the real space.
    Type: Application
    Filed: August 17, 2016
    Publication date: November 1, 2018
    Inventors: Takayuki ISHIDA, Yasuhiro WATARI, Akira SUZUKI, Hiroyuki SEGAWA, Hiroshi KATOH, Tetsugo INADA, Shinichi HONDA, Hidehiko OGASAWARA
  • Publication number: 20180272231
    Abstract: A first estimating unit estimates at least one of a position and an attitude of a predetermined object on the basis of an image of a periphery of the object, the image being obtained from an imaging device, and generates an estimation result not including an accumulated error. A second estimating unit estimates at least one of the position and the attitude of the object on the basis of the image, and generates an estimation result including an accumulated error. A correcting unit compares the estimation result of the first estimating unit and the estimation result of the second estimating unit with each other, and corrects, on the basis of a result of the comparison, a subsequent estimation result of the second estimating unit, the subsequent estimation result being subsequent to the estimation result of the second estimating unit which estimation result is used for the comparison.
    Type: Application
    Filed: October 3, 2016
    Publication date: September 27, 2018
    Applicants: Sony Corporation, Sony Interactive Entertainment Inc.
    Inventors: Hiroshi Katoh, Tetsugo Inada, Tatsuki Kashitani, Takaaki Kato