Patents by Inventor Zefeng Ni

Zefeng Ni 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: 9008365
    Abstract: System, apparatus, and method embodiments are provided for detecting the presence of a pedestrian in an image. In an embodiment, a method for determining whether a person is present in an image includes receiving a plurality of images, wherein each image comprises a plurality of pixels and determining a modified center symmetric local binary pattern (MS-LBP) for the plurality of pixels for each image, wherein the MS-LBP is calculated on a gradient magnitude map without using an interpolation process, and wherein a value for each pixel is a gradient magnitude.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: April 14, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jingsong Xu, Zefeng Ni, Qiang Wu, Jian Zhang, Haibo Liu, Chen-Xiong Zhang, Wei Chen
  • Publication number: 20140314271
    Abstract: System, apparatus, and method embodiments are provided for detecting the presence of a pedestrian in an image. In an embodiment, a method for determining whether a person is present in an image includes receiving a plurality of images, wherein each image comprises a plurality of pixels and determining a modified center symmetric local binary pattern (MS-LBP) for the plurality of pixels for each image, wherein the MS-LBP is calculated on a gradient magnitude map without using an interpolation process, and wherein a value for each pixel is a gradient magnitude.
    Type: Application
    Filed: April 18, 2013
    Publication date: October 23, 2014
    Applicant: HUAWEI TECHNOLOGIES, CO., LTD.
    Inventors: Jingsong Xu, Zefeng Ni, Qiang Wu, Jian Zhang, Haibo Liu, Philipp Zhang, Wei Chen
  • Publication number: 20110157229
    Abstract: Various implementations are described. Several implementations relate to view synthesis with heuristic view blending for 3D Video (3DV) applications. According to one aspect, at least one reference picture, or a portion thereof, is warped from at least one reference view location to a virtual view location to produce at least one warped reference. A first candidate pixel and a second candidate pixel are identified in the at least one warped reference. The first candidate pixel and the second candidate pixel are candidates for a target pixel location in a virtual picture from the virtual view location. A value for a pixel at the target pixel location is determined based on values of the first and second candidate pixels.
    Type: Application
    Filed: August 28, 2009
    Publication date: June 30, 2011
    Inventors: Zefeng Ni, Dong Tian, Sitaram Bhagavathy, Joan Llach
  • Publication number: 20110148858
    Abstract: Several implementations relate to view synthesis with heuristic view merging for 3D Video (3DV) applications. According to one aspect, a first candidate pixel from a first warped reference view and a second candidate pixel from a second warped reference view are assessed based on at least one of a backward synthesis process to assess a quality of the first and second candidate pixels, a hole distribution around the first and second candidate pixels, or on an amount of energy around the first and second candidate pixels above a specified frequency. The assessing occurs as part of merging at least the first and second warped reference views into a signal synthesized view. Based on the assessing, a result is determined for a given target pixel in the single synthesized view. The result may be determining a value for the given target pixel, or marking the given target pixel as a hole.
    Type: Application
    Filed: August 28, 2009
    Publication date: June 23, 2011
    Inventors: Zefeng Ni, Dong Tian, Sitaram Bhagavathy, Joan Llach