Patents by Inventor Qiankun Li

Qiankun Li 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: 10861177
    Abstract: A system and method for binocular stereo vision is disclosed. The method includes acquiring a pair of images including a first image and a second image, the pair of images being captured by one or more cameras; obtaining a training model; determining a plurality of feature images according to the first image; determining one or more features of an object in the first image according to the training model and the plurality of feature images; determining a first area in the first image, the first area including at least one of the determined one or more features; obtaining depth information of the determined first area based on the first and second images; and determining a second area in the first image based on the determined first area and depth information, the second area including at least one of the determined first area.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: December 8, 2020
    Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Wei Lu, Qiankun Li, Shizhu Pan, Miao Cheng, Xiangming Zhou
  • Publication number: 20200357147
    Abstract: A method relating to an image fusion includes acquiring a thermal infrared image and a visible image. The method also includes receiving a fusion parameter corresponding to a color space and generating, based on the fusion parameter, a fused image of the thermal infrared image and the visible image. The method further includes receiving a regulation parameter, the regulation parameter including a color scheme or a partial contrast, and adjusting the fused image according to the regulation parameter.
    Type: Application
    Filed: June 22, 2020
    Publication date: November 12, 2020
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Wei LU, Qiankun LI
  • Publication number: 20200358939
    Abstract: A system and method for determining a dimension of a target. The method includes: determining a camera parameter, the camera parameter including at least one of a focal length, a yaw angle, a roll angle, a pitch angle, or a height of one or more cameras; acquiring a first image and a second image of an target captured by the one or more cameras; generating a first corrected image and a second corrected image by correcting the first image and the second image; determining a parallax between a pixel in the first corrected image and a corresponding pixel in the second corrected image; determining an outline of the target; and determining a dimension of the target based at least in part on the camera parameter, the parallax, and the outline of the target.
    Type: Application
    Filed: June 8, 2020
    Publication date: November 12, 2020
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Wei LU, Qiankun LI, Shizhu PAN, Jichao GENG, Xiaohui SUN, Haijiang PAN, Jinting WANG
  • Patent number: 10719958
    Abstract: A method relating to an image fusion includes acquiring a thermal infrared image and a visible image. The method also includes receiving a fusion parameter corresponding to a color space and generating, based on the fusion parameter, a fused image of the thermal infrared image and the visible image. The method further includes receiving a regulation parameter, the regulation parameter including a color scheme or a partial contrast, and adjusting the fused image according to the regulation parameter.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: July 21, 2020
    Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Wei Lu, Qiankun Li
  • Patent number: 10681257
    Abstract: A system and method for determining a dimension of a target. The method includes: determining a camera parameter, the camera parameter including at least one of a focal length, a yaw angle, a roll angle, a pitch angle, or a height of one or more cameras; acquiring a first image and a second image of an target captured by the one or more cameras; generating a first corrected image and a second corrected image by correcting the first image and the second image; determining a parallax between a pixel in the first corrected image and a corresponding pixel in the second corrected image; determining an outline of the target; and determining a dimension of the target based at least in part on the camera parameter, the parallax, and the outline of the target.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: June 9, 2020
    Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Wei Lu, Qiankun Li, Shizhu Pan, Jichao Geng, Xiaohui Sun, Haijiang Pan, Jinting Wang
  • Publication number: 20190340461
    Abstract: A method and system for locating a target object in a target scene. The method may include obtaining a depth image of the target scene. The depth image may include a plurality of pixels. The method may also include, for each of the plurality of pixels of the depth image, determining a first target coordinate under a target coordinate system. The method may further include generating a marking image according to the depth image and the first target coordinates of the plurality of pixels in the depth image. The marking image may represent potential target objects in the depth image. The method may also include determining a locating coordinate of the target object under the target coordinate system according to the marking image.
    Type: Application
    Filed: July 17, 2019
    Publication date: November 7, 2019
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Qiankun LI, Wei LU, Shizhu PAN
  • Publication number: 20180322648
    Abstract: A system and method for binocular stereo vision is disclosed. The method includes acquiring a pair of images including a first image and a second image, the pair of images being captured by one or more cameras; obtaining a training model; determining a plurality of feature images according to the first image; determining one or more features of an object in the first image according to the training model and the plurality of feature images; determining a first area in the first image, the first area including at least one of the determined one or more features; obtaining depth information of the determined first area based on the first and second images; and determining a second area in the first image based on the determined first area and depth information, the second area including at least one of the determined first area.
    Type: Application
    Filed: November 9, 2016
    Publication date: November 8, 2018
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Wei LU, Qiankun LI, Shizhu PAN, Miao CHENG, Xiangming ZHOU
  • Publication number: 20180300906
    Abstract: A method relating to an image fusion includes acquiring a thermal infrared image and a visible image. The method also includes receiving a fusion parameter corresponding to a color space and generating, based on the fusion parameter, a fused image of the thermal infrared image and the visible image. The method further includes receiving a regulation parameter, the regulation parameter including a color scheme or a partial contrast, and adjusting the fused image according to the regulation parameter.
    Type: Application
    Filed: September 27, 2016
    Publication date: October 18, 2018
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Wei LU, Qiankun LI
  • Patent number: 10099981
    Abstract: Provided are methods for the meta-selective C—H arylations of arene alcohol-based substrates. The methods combine the transient norbornene strategy with a quinoline-based acetal scaffold to achieve the formation of biaryl compounds. These processes establish a foundation for catalytic polyfunctionalization of alcohol-based compounds. The method comprises attaching a heterocyclic hemiacetal scaffold to an aromatic alcohol or a substituted aromatic alcohol; reacting the aromatic or substituted aromatic alcohol having the heterocyclic hemiacetal scaffold attached with an alkyl or aryl iodide in a reaction mix comprising a palladium catalyst, a silver salt, and carboxymethyl norbornene to generate a meta-arylated arene conjugated to the heterocyclic hemiacetal scaffold; and then cleaving the heterocyclic hemiacetal scaffold from the meta-arylated arene alcohol.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: October 16, 2018
    Assignee: University of Georgia Research Foundation, Inc.
    Inventors: Eric Ferreira, Qiankun Li
  • Publication number: 20180241923
    Abstract: A system and method for determining a dimension of a target. The method includes: determining a camera parameter, the camera parameter including at least one of a focal length, a yaw angle, a roll angle, a pitch angle, or a height of one or more cameras; acquiring a first image and a second image of an target captured by the one or more cameras; generating a first corrected image and a second corrected image by correcting the first image and the second image; determining a parallax between a pixel in the first corrected image and a corresponding pixel in the second corrected image; determining an outline of the target; and determining a dimension of the target based at least in part on the camera parameter, the parallax, and the outline of the target.
    Type: Application
    Filed: August 26, 2016
    Publication date: August 23, 2018
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Wei LU, Qiankun LI, Shizhu PAN, Jichao GENG, Xiaohui SUN, Haijiang PAN, Jinting WANG
  • Patent number: 10005719
    Abstract: A method of preparing ortho-alkenyl and ortho-acetyl benzylic alcohols is disclosed.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: June 26, 2018
    Assignee: University of Georgia Research Foundation, Inc.
    Inventors: Eric Ferreira, Brian J Knight, Qiankun Li
  • Publication number: 20180065909
    Abstract: Provided are methods for the meta-selective C—H arylations of arene alcohol-based substrates. The methods combine the transient norbornene strategy with a quinoline-based acetal scaffold to achieve the formation of biaryl compounds. These processes establish a foundation for catalytic polyfunctionalization of alcohol-based compounds. The method comprises attaching a heterocyclic hemiacetal scaffold to an aromatic alcohol or a substituted aromatic alcohol; reacting the aromatic or substituted aromatic alcohol having the heterocyclic hemiacetal scaffold attached with an alkyl or aryl iodide in a reaction mix comprising a palladium catalyst, a silver salt, and carboxymethyl norbornene to generate a meta-arylated arene conjugated to the heterocyclic hemiacetal scaffold; and then cleaving the heterocyclic hemiacetal scaffold from the meta-arylated arene alcohol.
    Type: Application
    Filed: November 10, 2017
    Publication date: March 8, 2018
    Inventors: Eric Ferreira, Qiankun Li
  • Patent number: D907386
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: January 12, 2021
    Assignee: XIAMEN ANNMACARE SCIENCE & TECHNOLOGY CO., LTD.
    Inventors: Zhibin Zheng, Weifeng Li, Qiankun Gu