Patents by Inventor Shuchi Shiitani

Shuchi Shiitani 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: 20130230236
    Abstract: Embodiments describe an image retrieval apparatus. The image retrieval apparatus includes an unlabelled image selector for selecting one or more unlabelled image(s) from an image database; and a main learner for training in each feedback round of the image retrieval, estimating relevance of images in the image database and a user's intention, and determining retrieval results, wherein the main learner makes use of the unlabelled image(s) selected by the unlabelled image selector in the estimation. In addition, the image retrieval apparatus may also include an active selector for selecting, in each feedback round and according to estimation results of the main learner, one or more unlabelled image(s) from the image database for the user to label.
    Type: Application
    Filed: April 1, 2013
    Publication date: September 5, 2013
    Applicant: FUJITSU LIMITED
    Inventors: Rujie LIU, Takayuki BABA, Susumu ENDO, Shuchi SHIITANI, Yusuke UEHARA, Daiki MASUMOTO, Shigemi NAGATA
  • Patent number: 8433137
    Abstract: This invention discloses an image retrieval apparatus. The image retrieval apparatus comprises an unlabelled image selector for selecting one or more unlabelled image(s) from an image database; and a main learner for training in each feedback round of the image retrieval, estimating relevance of images in the image database and a user's intention, and determining retrieval results, wherein the main learner makes use of the unlabelled image(s) selected by the unlabelled image selector in the estimation. In addition, the image retrieval apparatus may also include an active selector for selecting, in each feedback round and according to estimation results of the main learner, one or more unlabelled image(s) from the image database for the user to label.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: April 30, 2013
    Assignee: Fujitsu Limited
    Inventors: Rujie Liu, Takayuki Baba, Susumu Endo, Shuchi Shiitani, Yusuke Uehara, Daiki Masumoto, Shigemi Nagata
  • Patent number: 8031948
    Abstract: The present invention discloses a shape comparison apparatus and method based on contour decomposition and correspondence. The apparatus comprises a polygonal approximation unit for approximating an image object contour as a polygon, namely representing the image object contour into an ordered contour primitive sequence; an attribute generation unit for calculating attribute value for contour primitive and contour primitive composition; and a comparison unit for establishing correspondence of polygons and hence calculating similarity between contours. Preferably, the apparatus further comprises an image object contour extraction unit for extracting, in the case the input into the apparatus is an image object rather than an image object contour, an image object contour of an image object inputted into the apparatus.
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: October 4, 2011
    Assignee: Fujitsu Limited
    Inventors: Rujie Liu, Takayuki Baba, Susumu Endo, Shuchi Shiitani, Yusuke Uehara, Daiki Masumoto
  • Publication number: 20080270478
    Abstract: This invention discloses an image retrieval apparatus. The image retrieval apparatus comprises an unlabelled image selector for selecting one or more unlabelled image(s) from an image database; and a main learner for training in each feedback round of the image retrieval, estimating relevance of images in the image database and a user's intention, and determining retrieval results, wherein the main learner makes use of the unlabelled image(s) selected by the unlabelled image selector in the estimation. In addition, the image retrieval apparatus may also include an active selector for selecting, in each feedback round and according to estimation results of the main learner, one or more unlabelled image(s) from the image database for the user to label.
    Type: Application
    Filed: April 24, 2008
    Publication date: October 30, 2008
    Applicant: FUJITSU LIMITED
    Inventors: Rujie Liu, Takayuki Baba, Susumu Endo, Shuchi Shiitani, Yusuke Uehara, Daiki Masumoto, Shigemi Nagata
  • Publication number: 20070286493
    Abstract: The present invention discloses a shape comparison apparatus and method based on contour decomposition and correspondence. The apparatus comprises a polygonal approximation unit for approximating an image object contour as a polygon, namely representing the image object contour into an ordered contour primitive sequence; an attribute generation unit for calculating attribute value for contour primitive and contour primitive composition; and a comparison unit for establishing correspondence of polygons and hence calculating similarity between contours. Preferably, the apparatus further comprises an image object contour extraction unit for extracting, in the case the input into the apparatus is an image object rather than an image object contour, an image object contour of an image object inputted into the apparatus.
    Type: Application
    Filed: April 9, 2007
    Publication date: December 13, 2007
    Inventors: Rujie Liu, Takayuki Baba, Susumu Endo, Shuchi Shiitani, Yusuke Uehara, Daiki Masumoto