Patents by Inventor Motohiro Ishikawa

Motohiro Ishikawa 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).

  • Publication number: 20020081019
    Abstract: Images sensed through object lenses 100R and 100L, having zoom lenses, with image sensors 102R and 102L are processed by image signal processors 104R and 104L, and an image of an object in each of the sensed images is separated from a background image on the basis of the processed image signals. The separated image signals representing the image of the object enter the image processor 220, where a three-dimensional shape of the object is extracted on the basis of parameters used upon sensing the images. The parameters are automatically adjusted so that images of the object fall within the both image sensing areas of the image sensors 102R and 102L and that they fall within the both focal depths of the image sensors 102R and 102L.
    Type: Application
    Filed: July 26, 1996
    Publication date: June 27, 2002
    Inventors: TATSUSHI KATAYAMA, SHIGEKI OKAUCHI, NOBUO FUKUSHIMA, MASAKAZU MATSUGU, KATSUMI IIJIMA, MASAYOSHI SEKINE, KOTARO YANO, SUNAO KURAHASHI, MOTOHIRO ISHIKAWA
  • Publication number: 20020024611
    Abstract: A control system having device units removably attachable to a control device such as a computer is arranged to optimize the allocation and distribution of electric power to the device units and also displays of varied kinds. For this purpose, each device unit of the system includes a communication circuit arranged to transmit information of electric power consumption and an operating state of the device unit detachably connected to the control device such as a computer, a stopping circuit for partly stopping a function of the device unit according to a control signal sent in reply from the control device on the basis of information of varied kinds transmitted through the transmission circuit to the control device.
    Type: Application
    Filed: September 27, 2001
    Publication date: February 28, 2002
    Inventors: Gaku Watanabe, Kenichi Kondo, Nobuo Fukushima, Masayoshi Sekine, Koichi Sono, Motohiro Ishikawa, Yuji Koide
  • Publication number: 20010014171
    Abstract: A three-dimensional information processing apparatus for obtaining three-dimensional information from an object having a three-dimensional shape, and performing predetermined information processing, comprises: a camera for sensing images of the object from a plurality of coordinate positions using an image sensing system having one or a plurality of optical systems. A plurality of depth information are extracted from image sensing related information sensed by the camera at the plurality of coordinate positions, and the plurality of extracted depth information are converted and unified into depth information expressed by a unified coordinate system.
    Type: Application
    Filed: June 30, 1997
    Publication date: August 16, 2001
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: KATSUMI IIJIMA, SHIGEKI OKAUCHI, MASAKAZU MATSUGU, MASAYOSHI SEKINE, KOTARO YANO, SUNAO KURAHASHI, TATSUSHI KATAYAMA, KATSUHIKO MORI, MOTOHIRO ISHIKAWA
  • Patent number: 5978020
    Abstract: In an image pickup system, an image pickup unit is connected to a computer which has a display device. In order to make a display by matching the characteristic of the image pickup unit with that of the display device, the image pickup unit is provided with a control part which is arranged to measure a signal processing speed of the computer, to compare the signal processing speed with an image pickup speed or a picked-up image data output speed of the image pickup unit and to vary an image pickup action or a picked-up image data output action of the image pickup unit according to a result of the comparison or according to an operation performed by an operator of the image pickup system.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: November 2, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Gaku Watanabe, Kenichi Kondo, Nobuo Fukushima, Masayoshi Sekine, Koichi Sono, Motohiro Ishikawa, Yuji Koide
  • Patent number: 5937212
    Abstract: A compound eye image pickup apparatus with reduced parallax having two optical image pickup systems wherein the cross points between entrance pupils and optical axes of the two optical image pickup systems are generally coincident.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: August 10, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Sunao Kurahashi, Shigeki Okauchi, Katsumi Iijima, Masayoshi Sekine, Kotaro Yano, Katsuhiko Mori, Motohiro Ishikawa, Takeo Sakimura
  • Patent number: 5706419
    Abstract: An image capturing and processing apparatus has image pickup means, first image memorizing means in which an object image from a predetermined viewing point position captured by the image pickup means is memorized, three-dimensional shape model memorizing means for producing a reference object image from a viewing point position nearest to the pick-up object image on the basis of a reference three-dimensional shape model, second image memorizing means in which the produced reference object image is memorized, different portion extracting means for extracting the difference between the object image and the reference object image memorized in the respective image memorizing means, and shape model correcting means for correcting the reference three-dimensional shape model on the basis of the extracted difference.
    Type: Grant
    Filed: February 21, 1996
    Date of Patent: January 6, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masakazu Matsugu, Katsumi Iijima, Kotaro Yano, Sunao Kurahashi, Toshiaki Kondo, Motohiro Ishikawa