Patents by Inventor Guan Haike

Guan Haike 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: 8681228
    Abstract: A device includes a display monitor configured to display on a screen of the display monitor at least one of a current image and a preceding image taken by an optical unit, a storage unit configured to store the preceding image, and a control unit configured to display a part of the preceding image on the screen when the current image is displayed on the screen, the displayed part of the preceding image indicating a positional relationship between the current image and the preceding image. The current image is taken when the displayed part of the preceding image substantially overlaps a corresponding portion of the current image such that the current image and the preceding image can be processed to form a panoramic image.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: March 25, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Koichi Ejiri, Shin Aoki, Takashi Saitoh, Guan Haike, Takuji Sakamoto
  • Patent number: 7599081
    Abstract: A detection result indicating whether a document image is copy guarded is generated. Based on the detection result, information contained in the document image is concealed.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: October 6, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Shimura, Guan Haike, Masaaki Ishikawa, Takashi Saitoh, Hiroshi Arai
  • Publication number: 20090185054
    Abstract: A device includes a display monitor configured to display on a screen of the display monitor at least one of a current image and a preceding image taken by an optical unit, a storage unit configured to store the preceding image, and a control unit configured to display a part of the preceding image on the screen when the current image is displayed on the screen, the displayed part of the preceding image indicating a positional relationship between the current image and the preceding image. The current image is taken when the displayed part of the preceding image substantially overlaps a corresponding portion of the current image such that the current image and the preceding image can be processed to form a panoramic image.
    Type: Application
    Filed: March 27, 2009
    Publication date: July 23, 2009
    Inventors: Koichi Ejiri, Shin Aoki, Takashi Saitoh, Guan Haike, Takuji Sakamoto
  • Patent number: 7529430
    Abstract: A device includes a display monitor configured to display on a screen of the display monitor at least one of a current image and a preceding image taken by an optical unit, a storage unit configured to store the preceding image, and a control unit configured to display a part of the preceding image on the screen when the current image is displayed on the screen, the displayed part of the preceding image indicating a positional relationship between the current image and the preceding image. The current image is taken when the displayed part of the preceding image substantially overlaps a corresponding portion of the current image such that the current image and the preceding image can be processed to form a panoramic image.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: May 5, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Koichi Ejiri, Shin Aoki, Takashi Saitoh, Guan Haike, Takuji Sakamoto
  • Patent number: 7298919
    Abstract: A camera system includes a display monitor which displays an image of an object, taken by an optical unit, on a screen of the monitor. A reading unit reads a preceding image and a current image among a plurality of partially overlapping images, from a memory device, the preceding image and the current image containing a common element. A determining unit determines a positional relation between the preceding image and the current image based on a common pattern derived from the common element in the two adjacent images read by the reading unit. A displaying unit displays an image indicating a boundary of the preceding image on the screen of the monitor at a shifted position according to the positional relation determined by the determining unit, with the current image concurrently displayed on the screen of the monitor.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: November 20, 2007
    Assignee: Ricoh Company, Ltd.
    Inventors: Koichi Ejiri, Shin Aoki, Takashi Saitoh, Guan Haike, Takuji Sakamoto
  • Publication number: 20070122059
    Abstract: A device includes a display monitor configured to display on a screen of the display monitor at least one of a current image and a preceding image taken by an optical unit, a storage unit configured to store the preceding image, and a control unit configured to display a part of the preceding image on the screen when the current image is displayed on the screen, the displayed part of the preceding image indicating a positional relationship between the current image and the preceding image. The current image is taken when the displayed part of the preceding image substantially overlaps a corresponding portion of the current image such that the current image and the preceding image can be processed to form a panoramic image.
    Type: Application
    Filed: January 30, 2007
    Publication date: May 31, 2007
    Inventors: Koichi EJIRI, Shin Aoki, Takashi Saitoh, Guan Haike, Takuji Sakamoto
  • Publication number: 20060126098
    Abstract: A detection result indicating whether a document image is copy guarded is generated. Based on the detection result, information contained in the document image is concealed.
    Type: Application
    Filed: December 12, 2005
    Publication date: June 15, 2006
    Inventors: Hiroshi Shimura, Guan Haike, Masaaki Ishikawa, Takashi Saitoh, Hiroshi Arai
  • Patent number: 7016081
    Abstract: The present invention provide an image distortion correction apparatus comprising a circumscribed rectangle extraction unit which extracts a circumscribed rectangle for each character in a distorted image scanned by an image reading unit to read an original placed on a reference plane, a character string extraction unit which extracts character strings using said circumscribed rectangles extracted by said circumscribed rectangle extraction unit, a distance estimation unit which estimates a distance between said reference plane and said original using said character strings and an image distortion correction unit which corrects said distorted image based on said distance between said reference plane and said original estimated by said image distortion correction unit.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: March 21, 2006
    Assignee: Ricoh Company, Ltd.
    Inventors: Tadashi Araki, Guan Haike
  • Publication number: 20040218833
    Abstract: A camera system includes a display monitor which displays an image of an object, taken by an optical unit, on a screen of the monitor. A reading unit reads a preceding image and a current image among a plurality of partially overlapping images, from a memory device, the preceding image and the current image containing a common element. A determining unit determines a positional relation between the preceding image and the current image based on a common pattern derived from the common element in the two adjacent images read by the reading unit. A displaying unit displays an image indicating a boundary of the preceding image on the screen of the monitor at a shifted position according to the positional relation determined by the determining unit, with the current image concurrently displayed on the screen of the monitor.
    Type: Application
    Filed: June 4, 2004
    Publication date: November 4, 2004
    Inventors: Koichi Ejiri, Shin Aoki, Takashi Saitoh, Guan Haike, Takuji Sakamoto
  • Patent number: 6798924
    Abstract: A camera system includes a display monitor which displays an image of an object, taken by an optical unit, on a screen of the monitor. A reading unit reads a preceding image and a current image among a plurality of partially overlapping images, from a memory device, the preceding image and the current image containing a common element. A determining unit determines a positional relation between the preceding image and the current image based on a common pattern derived from the common element in the two adjacent images read by the reading unit. A displaying unit displays an image indicating a boundary of the preceding image on the screen of the monitor at a shifted position according to the positional relation determined by the determining unit, with the current image concurrently displayed on the screen of the monitor.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: September 28, 2004
    Assignee: Ricoh Company, Ltd.
    Inventors: Koichi Ejiri, Shin Aoki, Takashi Saitoh, Guan Haike, Takuji Sakamoto
  • Publication number: 20030002750
    Abstract: A camera system includes a display monitor which displays an image of an object, taken by an optical unit, on a screen of the monitor. A reading unit reads a preceding image and a current image among a plurality of partially overlapping images, from a memory device, the preceding image and the current image containing a common element. A determining unit determines a positional relation between the preceding image and the current image based on a common pattern derived from the common element in the two adjacent images read by the reading unit. A displaying unit displays an image indicating a boundary of the preceding image on the screen of the monitor at a shifted position according to the positional relation determined by the determining unit, with the current image concurrently displayed on the screen of the monitor.
    Type: Application
    Filed: September 3, 2002
    Publication date: January 2, 2003
    Inventors: Koichi Ejiri, Shin Aoki, Takashi Saitoh, Guan Haike, Takuji Sakamoto
  • Patent number: 6466701
    Abstract: A camera system includes a display monitor which displays an image of an object, taken by an optical unit, on a screen of the monitor. A reading unit reads a preceding image and a current image among a plurality of partially overlapping images, from a memory device, the preceding image and the current image containing a common element. A determining unit determines a positional relation between the preceding image and the current image based on a common pattern derived from the common element in the two adjacent images read by the reading unit. A displaying unit displays an image indicating a boundary of the preceding image on the screen of the monitor at a shifted position according to the positional relation determined by the determining unit, with the current image concurrently displayed on the screen of the monitor.
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: October 15, 2002
    Assignee: Ricoh Company, Ltd.
    Inventors: Koichi Ejiri, Shin Aoki, Takashi Saitoh, Guan Haike, Takuji Sakamoto
  • Publication number: 20020084978
    Abstract: The present invention provide an image distortion correction apparatus comprising a circumscribed rectangle extraction unit which extracts a circumscribed rectangle for each character in a distorted image scanned by an image reading unit to read an original placed on a reference plane, a character string extraction unit which extracts character strings using said circumscribed rectangles extracted by said circumscribed rectangle extraction unit, a distance estimation unit which estimates a distance between said reference plane and said original using said character strings and an image distortion correction unit which corrects said distorted image based on said distance between said reference plane and said original estimated by said image distortion correction unit.
    Type: Application
    Filed: December 12, 2001
    Publication date: July 4, 2002
    Inventors: Tadashi Araki, Guan Haike