Patents by Inventor Shen Ge Wang

Shen Ge Wang 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: 9100576
    Abstract: A method and device for receiving an image of a symbology captured by an imaging device, displaying an image of the symbology, displaying a boundary indicator around the symbology, adjusting the image size to correspond with the boundary indicator, decoding the symbology, and initiating an action by device.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: August 4, 2015
    Assignee: Xerox Corporation
    Inventors: Zhigang Fan, Yonghui Zhao, Shen-ge Wang, Hengzhou Ding
  • Patent number: 9020200
    Abstract: A method for adjusting a license plate that is detected in a captured image includes automatically determining at least one set of correction parameters corresponding to a slant-oriented license plate. The method further includes receiving an input image representing a detected license plate. In response to receiving the input image, the method includes automatically adjusting the input image to obtain a corrected image using the at least one set of correction parameters.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: April 28, 2015
    Assignee: Xerox Corporation
    Inventors: Zhigang Fan, Yonghui Zhao, Shen-ge Wang
  • Publication number: 20150109355
    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for displaying high bit-depth images using spatial vector screening and/or temporal dithering on display devices including display elements that have multiple primary colors. The systems, methods and apparatus described herein can be configured to select a method of rendering high bit-depth images and/or videos on low bit-depth devices based on the operating speed of the display device.
    Type: Application
    Filed: May 6, 2014
    Publication date: April 23, 2015
    Applicant: QUALCOMM Mems Technologies, Inc.
    Inventors: Shen-Ge Wang, Jian Ma, Bing Wen, Songhe Cai
  • Patent number: 8970910
    Abstract: As set forth herein, computer-implemented methods and systems facilitate watermarking documents and/or images using 2nd generation stochastic halftoning. The watermark is used to spatially vary the gray level at which a frequency modulation-to-amplitude modulation transition occurs. The encoding algorithm uses as inputs a contone image and a watermark. The visibility of the watermark is controlled by the magnitude of the difference between the AM-to-FM transition threshold values.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: March 3, 2015
    Assignee: Xerox Corporation
    Inventors: Edgar A. Bernal, Shen-ge Wang, Robert P. Loce, Zhigang Fan
  • Patent number: 8941899
    Abstract: A method for simulating a textured appearance on a uniform substrate includes using variable halftone dot orientations. A texture description is provided for generating electronic data representing a three-dimensional texture. Texture regions of the texture description are identified using pixel cells in the electronic data. Halftone dot orientations are assigned for each pixel cell based on a value of the pixel cell. The halftone dot orientation represents a recessed or a raised surface portion.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: January 27, 2015
    Assignee: Xerox Corporation
    Inventors: Mu Qiao, Marc Rene, William A. Fuss, Shen-ge Wang, Paul Conlon
  • Patent number: 8922673
    Abstract: A software application corrects for luminance and/or color in a captured image on a device having two cameras. The first camera receives a reference image, and the second camera receives a target image. The device compares the reference image and a reference file retrieved from memory to identify one or more luminance or color differences, and it automatically actuates an optical adjustment element of the second imaging device in response to the differences. The second imaging device captures a target image, and the target image is stored in a computer-readable memory.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: December 30, 2014
    Assignee: Xerox Corporation
    Inventors: Yonghui Zhao, Shen-ge Wang
  • Patent number: 8888010
    Abstract: A system for generating a security mark includes a data reception component that receives information. A security mark generation component in communication with the data reception component generates at least one security mark configuration based at least in part upon the received information. The at least one security mark configuration includes at least one simulation mark which resembles a natural feature. An application component applies one configuration of the at least one security mark configurations to a recipient. The applied security mark configuration obeys at least one rule whereby the security mark is distinguishable from the natural feature which it resembles by a system for detection of security marks.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: November 18, 2014
    Assignee: Xerox Corporation
    Inventors: Zhigang Fan, Reiner Eschbach, Calvin John Marlett, William A. Fuss, James R. Low, Shen-ge Wang
  • Patent number: 8848088
    Abstract: A method and apparatus for obtaining an image and providing one or more document files to a user is disclosed. The method may include receiving an image of a target object using an imaging device, analyzing the image to identify one or more features, and accessing a model database to identify an object model having features that match the identified features from the image. When the system determines that more than one model may be a match, the method looks for distinguishing features of the target object and selects a model that includes the distinguishing features. The method then includes, retrieving a document file that corresponds to the identified model from a file database, and providing the document file to a user.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: September 30, 2014
    Assignee: Xerox Corporation
    Inventors: Zhigang Fan, Yonghui Zhao, Shen-ge Wang, Hengzhou Ding
  • Patent number: 8830533
    Abstract: A process for creating a barcode with an embedded logo considers a printer gamut and divides the printer gamut into multiple regions. A virtual printer gamut is then generated with the colors in bright and dark regions. A target logo image is generated by mapping the virtual gamut to the original logo image. A logo with embedded barcode is produced using the colors specified in the target logo image.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: September 9, 2014
    Assignee: Xerox Corporation
    Inventors: Zhigang Fan, Yonghui Zhao, Shen-Ge Wang, Hengzhou Ding
  • Patent number: 8821996
    Abstract: The teachings as provided herein relate to a watermark embedded in an image that has the property of being relatively indecipherable under normal light, and yet decipherable under UV light. This fluorescent mark comprises a substrate containing optical brightening agents, and a first dot design printed as an image upon the substrate. The first dot design has as a characteristic the property of strongly suppressing substrate fluorescence. A second dot design having a property of providing a differing level of substrate fluorescence suppression from that of the first dot design such that when rendered in close spatial proximity with the first dot design image print, the resultant image rendered substrate suitably exposed to an ultra-violet light source, will yield a discernable image evident as a fluorescent mark.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: September 2, 2014
    Assignee: Xerox Corporation
    Inventors: Raja Bala, Reiner Eschbach, Shen-Ge Wang, Yonghui Zhao
  • Patent number: 8812978
    Abstract: A system and method for dynamic zoom adjustment based, in part, upon: the raster data in the user selected local area is disclosed; and/or the knowledge of a prevailing font size in a user selected region such that the text in that region is enlarged to be just readable. To achieve this, the detail in the local area is examined and a zoom factor is calculated that depends on the image detail and/or the viewing screen resolution. A document server may be employed to develop the information needed to enable this functionality. In one embodiment, the information is developed by RIPping the document, and then storing a spatial map of localized details (e.g., font sizes at several display resolutions) to automatically adjust a zoom level or factor and thereby facilitate navigation and reading.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: August 19, 2014
    Assignee: Xerox Corporation
    Inventors: Reiner Eschbach, Emil V. Rainero, Zhigang Fan, Shen-ge Wang
  • Publication number: 20140211023
    Abstract: Methods and systems for detecting an object borderline. A first image with respect to the object can be captured by an image-capturing unit without a flash light and borderlines of the object can be detected. If the detection is successful, the detected borderlines can be outputted. Otherwise, a second image with respect to the object can be captured by the image-capturing unit by applying a flash light and the borderlines can be detected in the image. A geometric transformation between the two images can then be estimated. Finally, the border lines in the first image can be determined by transforming the borderlines detected in the second image. Such an approach effectively detects the appliance borderlines and avoids artifacts caused by applying flash.
    Type: Application
    Filed: January 30, 2013
    Publication date: July 31, 2014
    Applicant: XEROX CORPORATION
    Inventors: Zhigang Fan, Hengzhou Ding, Yonghui Zhao, Shen-Ge Wang
  • Patent number: 8774450
    Abstract: Described herein is a level I (overt) feature for security printing intended to deter unauthorized modification of text documents. The exemplary method includes generating a textured background that follows the contour of the text it surrounds and is difficult to modify. The background patterns may be generated with a two-step procedure that first creates a smooth function and then modulates it to produce patterns with sharp contrast. Tampering will be deterred as visible artifacts will be created when text is altered. Compared to the levels II and III features, the exemplary method relies on human vision for detection and does not require any special tools and instruments. It can be used in applications where fast, simple and inexpensive inspection is essential, or combined with other technologies for enhancing overall effectiveness.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: July 8, 2014
    Assignee: Xerox Corporation
    Inventors: Zhigang Fan, Shen-Ge Wang
  • Patent number: 8730527
    Abstract: A processor controls a marking engine to print a uniform region having a visually uniform color for an observer within all areas of the uniform region. The processor also controls the marking engine to print different gloss patterns within the uniform region. The different gloss patterns have first and second gloss regions, and the gloss difference between the first and second gloss regions forms gloss marks. Additionally, the processor controls the marking engine to print different infrared patterns within the uniform region to form infrared marks. In some embodiments, the infrared patterns are only within the first gloss regions and are not within the second gloss regions.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: May 20, 2014
    Assignee: Xerox Corporation
    Inventors: Edward N. Chapman, Francis K. Tse, Shen-ge Wang, Reiner Eschbach, Yonghui Zhao
  • Publication number: 20140085392
    Abstract: A processor controls a marking engine to print a uniform region having a visually uniform color for an observer within all areas of the uniform region. The processor also controls the marking engine to print different gloss patterns within the uniform region. The different gloss patterns have first and second gloss regions, and the gloss difference between the first and second gloss regions forms gloss marks. Additionally, the processor controls the marking engine to print different infrared patterns within the uniform region to form infrared marks. In some embodiments, the infrared patterns are only within the first gloss regions and are not within the second gloss regions.
    Type: Application
    Filed: September 27, 2012
    Publication date: March 27, 2014
    Applicant: XEROX CORPORATION
    Inventors: Edward N. Chapman, Francis K. Tse, Shen-ge Wang, Reiner Eschbach, Yonghui Zhao
  • Patent number: 8681383
    Abstract: As set forth herein, computer-implemented methods and systems facilitate employing a single stochastic screen defined up to a specified transition level. The dots at the specified level are connected to form a triangle tessellation with an associated spot function. For up to three colorants, a vector screening technique is employed, which involves a first colorant dot being grown from the vertices, second colorant dot grown from the triangle center, and a third colorant dot grown from the side midpoints. Growth in this manner ensures separation of colorants up to a certain density level. In cases where fourth colorant is to be used at a given pixel, the fourth colorant can be added using methods typically used for clustered screens, such as stochastic screening of the lightest colorant, in order to mitigate color shift sensitivity issues.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: March 25, 2014
    Assignee: Xerox Corporation
    Inventors: Shen-ge Wang, Edgar A. Bernal, Robert P. Loce
  • Publication number: 20140056478
    Abstract: A method and apparatus for obtaining an image and providing one or more document files to a user is disclosed. The method may include receiving an image of a target object using an imaging device, analyzing the image to identify one or more features, and accessing a model database to identify an object model having features that match the identified features from the image. When the system determines that more than one model may be a match, the method looks for distinguishing features of the target object and selects a model that includes the distinguishing features. The method then includes, retrieving a document file that corresponds to the identified model from a file database, and providing the document file to a user.
    Type: Application
    Filed: November 4, 2013
    Publication date: February 27, 2014
    Applicant: Xerox Corporation
    Inventors: Zhigang Fan, Yonghui Zhao, Shen-ge Wang, Hengzhou Ding
  • Publication number: 20140029073
    Abstract: When restoring a scanned halftone image of a damaged document, parameters of the halftone structure (geometry) are estimated, as is an intended contone gray level for damaged portions of the image. Locations of halftone cell tiles in the scanned image are determined based on the halftone structure, and a halftone profile model is generated using the estimated halftone parameters and contone information. Image segments are aligned using global features for coarse alignment and halftone structure for fine alignment, such as in cases where the scanned halftone image contains unconnected fragments. Missing parts of the damaged document image are filled in using the halftone profile model and estimated contone values.
    Type: Application
    Filed: July 27, 2012
    Publication date: January 30, 2014
    Applicant: XEROX CORPORATION
    Inventors: Shen-ge Wang, Edgar A. Bernal, Robert P. Loce
  • Patent number: 8619331
    Abstract: A method includes receiving a primary image as input data and receiving textured image data for rendering a perceived non-uniform texture on a printed output of the primary image. The primary image input data is used for determining a low coverage portion and a high coverage portion. The method then includes applying clear toner to the low coverage portion and applying colored toner at variable anisotropic orientations to the high coverage portion.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: December 31, 2013
    Assignee: Xerox Corporation
    Inventors: Mu Qiao, Marc Rene, William A. Fuss, Shen-ge Wang, Paul Conlon
  • Publication number: 20130329961
    Abstract: A method for adjusting a license plate that is detected in a captured image includes automatically determining at least one set of correction parameters corresponding to a slant-oriented license plate. The method further includes receiving an input image representing a detected license plate. In response to receiving the input image, the method includes automatically adjusting the input image to obtain a corrected image using the at least one set of correction parameters.
    Type: Application
    Filed: June 12, 2012
    Publication date: December 12, 2013
    Applicant: Xerox Corporation
    Inventors: Zhigang Fan, Yonghui Zhao, Shen-ge Wang