Patents by Inventor Xiang Ruan

Xiang Ruan 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: 20140112598
    Abstract: An image processing device has a query image specification unit that specifies a query image in accordance with designation by a user, an object detection unit that detects an object in the query image, a synthetic query image generation unit that synthesizes a plurality of objects in the objects detected by the object detection unit to generate a synthetic query image including the plurality of objects, and an image retrieval unit that retrieves an image similar to the synthetic query image based on the synthetic query image.
    Type: Application
    Filed: March 22, 2011
    Publication date: April 24, 2014
    Applicant: OMRON CORPORATION
    Inventors: Takayoshi Yamashita, Xiang Ruan
  • Publication number: 20140072230
    Abstract: An image processing device for identifying a characteristic of an eye from a face image comprising: a first differentiation unit configured to differentiate an eye region in a crosswise direction of the eye to obtain a first luminance gradient; a first edge extraction unit configured to extract a first and a second edge points; a voting unit configured to vote for an ellipse; a pupil outline identification unit configured to identify an ellipse expressing a pupil outline; a second differentiation unit configured to obtain a second luminance gradient by differentiating in a vertical direction; a second edge extraction unit configured to extract a third edge point; a curve identification unit configured to identify a curve that fits to the third edge point as a curve expressing an eyelid outline; and a pupil region identification unit configured to identify a pupil region based on the identified ellipse and the identified curve.
    Type: Application
    Filed: March 11, 2011
    Publication date: March 13, 2014
    Applicant: OMRON CORPORATION
    Inventors: Xiang Ruan, Takayoshi Yamashita
  • Publication number: 20140056529
    Abstract: An image processing device for identifying a characteristic of an eye from a face image comprising: a first differentiation unit configured to differentiate an eye region in at least a vertical direction of the eye to obtain a first luminance gradient; a first edge extraction unit configured to extract a first edge point according to the first luminance gradient; and a curve identification unit configured to identify a curve, which is a B-spline curve or a Bezier curve expressed by a control point and both end points and fits to the first edge point, as a curve expressing an upper-eyelid or lower-eyelid outline, the end points being an inner corner point of eye and a tail point of eye, by voting for the control point that is a voting target with respect to the first edge point using the Hough transform.
    Type: Application
    Filed: March 22, 2011
    Publication date: February 27, 2014
    Applicant: OMRON CORPORATION
    Inventors: Xiang Ruan, Takayoshi Yamashita
  • Patent number: 8526675
    Abstract: A gesture recognition apparatus is caused to correctly recognize start and end of a gesture without use of special unit by a natural manipulation of a user and low-load processing for the gesture recognition apparatus. The gesture recognition apparatus that recognizes the gesture from action of a recognition object taken in a moving image includes: a gravity center tracking unit that detects a specific subject having a specific feature from the moving image; a moving speed determining unit that computes a moving speed per unit time of the specific subject; a moving pattern extracting unit that extracts a moving pattern of the specific subject; and a start/end judgment unit that discriminates movement of the specific subject as an instruction (such as an instruction to start or end gesture recognition processing) input to the gesture recognition apparatus when the moving speed and the moving pattern satisfy predetermined conditions.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: September 3, 2013
    Assignee: OMRON Corporation
    Inventor: Xiang Ruan
  • Publication number: 20120288189
    Abstract: An image processing method includes a segmentation step that segments an input image into a plurality of regions by using an automatic segmentation algorithm, and a computation step that calculates a saliency value of one region of the plurality of segmented regions by using a weighted sum of color differences between the one region and all other regions. Accordingly, it is possible to automatically analyze visual saliency regions in an image, and a result of analysis can be used in application areas including significant object segmentation, object recognition, adaptive image compression, content-aware image resizing, and image retrieval.
    Type: Application
    Filed: May 11, 2012
    Publication date: November 15, 2012
    Applicants: TSINGHUA UNIVERSITY, OMRON CORPORATION
    Inventors: Shi-Min Hu, Ming-Ming Cheng, Guo-Xin Zhang, Niloy J. Mitra, Xiang Ruan
  • Publication number: 20110222775
    Abstract: An attribute of image data can accurately be discriminated. An image attribute discrimination apparatus includes a heterogeneous region extracting unit that specifies a heterogeneous region from image data. The heterogeneous region includes a heterogeneous matter whose attribute is different from that of a content originally produced by the image data. An image attribute discrimination apparatus further includes a scene discrimination unit that discriminates the attribute of the image data based on a feature quantity extracted from a pixel group except each pixel in the heterogeneous region in each pixel of the image data.
    Type: Application
    Filed: February 23, 2011
    Publication date: September 15, 2011
    Applicant: OMRON CORPORATION
    Inventors: Tomoyoshi Aizawa, Xiang Ruan, Motoo Yamamoto, Kiyoaki Tanaka
  • Publication number: 20110222726
    Abstract: A gesture recognition apparatus is caused to correctly recognize start and end of a gesture without use of special unit by a natural manipulation of a user and low-load processing for the gesture recognition apparatus. The gesture recognition apparatus that recognizes the gesture from action of a recognition object taken in a moving image includes: a gravity center tracking unit that detects a specific subject having a specific feature from the moving image; a moving speed determining unit that computes a moving speed per unit time of the specific subject; a moving pattern extracting unit that extracts a moving pattern of the specific subject; and a start/end judgment unit that discriminates movement of the specific subject as an instruction (such as an instruction to start or end gesture recognition processing) input to the gesture recognition apparatus when the moving speed and the moving pattern satisfy predetermined conditions.
    Type: Application
    Filed: February 25, 2011
    Publication date: September 15, 2011
    Applicant: OMRON CORPORATION
    Inventor: Xiang Ruan