Patents by Inventor Kunizo Sakai

Kunizo Sakai 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).

  • Image processor, intruder monitoring apparatus and intruder monitoring method
    Publication number: 20080122930
    Abstract: An intruder monitoring apparatus has at least a feature of correcting characteristic quantities by which an object to be monitored is specified, on the basis reference characteristic, when any change occurs in conditions of the video devices and environments. A further feature is provided which a plurality of scenes are monitored periodically by one camera and an image analysis function is driven so as to monitor any intruder only when the camera unit is fixedly directed to a specific scene among the scenes.
    Type: Application
    Filed: January 14, 2008
    Publication date: May 29, 2008
    Inventors: Yoichi Takagi, Hiroshi Suzuki, Kunizo Sakai, Yoshiki Kobayashi, Takeshi Saito
  • Image processor, intruder monitoring apparatus and intruder monitoring method
    Publication number: 20040207729
    Abstract: An intruder monitoring apparatus has at least a feature of correcting characteristic quantities by which an object to be monitored is specified, on the basis reference characteristic, when any change occurs in conditions of the video devices and environments. A further feature is provided which a plurality of scenes are monitored periodically by one camera and an image analysis function is driven so as to monitor any intruder only when the camera unit is fixedly directed to a specific scene among the scenes.
    Type: Application
    Filed: May 11, 2004
    Publication date: October 21, 2004
    Inventors: Yoichi Takagi, Hiroshi Suzuki, Kunizo Sakai, Yoshiki Kobayashi, Takeshi Saito
  • IMAGE PROCESSOR, INTRUDER MONITORING APPARATUS AND INTRUDER MONITORING METHOD
    Publication number: 20010010542
    Abstract: An intruder monitoring apparatus has at least a feature of correcting characteristic quantities by which an object to be monitored is specified, on the basis reference characteristic, when any change occurs in conditions of the video devices and environments. A further feature is provided which a plurality of scenes are monitored periodically by one camera and an image analysis function is driven so as to monitor any intruder only when the camera unit is fixedly directed to a specific scene among the scenes.
    Type: Application
    Filed: September 18, 1997
    Publication date: August 2, 2001
    Inventors: YOICHI TAKAGI, HIROSHI SUZUKI, KUNIZO SAKAI, YOSHIKI KOBAYASHI, TAKESHI SAITO
  • Liquid-level position measuring method and system
    Patent number: 6098029
    Abstract: The present invention has an object to measure the height of a liquid surface automatically by an image processing. According to the present invention, therefore, the situation over a side wall and the situation of the liquid surface in the image, as taken from an ITV camera, of the neighborhood of the liquid surface are image-analyzed to estimate the boundary position between the side wall and the liquid surface thereby to determine the position of the liquid surface on the image, and the liquid-surface position on the image is transformed from an image coordinate system to a real spatial coordinate system to determine a real position of the liquid surface.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: August 1, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Yoichi Takagi, Takatoshi Kodaira, Yoshiki Kobayashi, Masao Takatou, Hirotomo Horita, Kunizo Sakai