Patents by Inventor Sijie Shao

Sijie Shao 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: 9417132
    Abstract: A multispectral imaging color measurement system, comprising a dark room, a sample platform and an imaging device for capturing said object being measured; a controllable illumination device, a filter wheel unit, an imaging signal processing unit and an electronic control unit. A method for processing imaging signals of the multispectral imaging color measurement is also proposed. The multispectral imaging color measurement system and the method for processing imaging signals thereof can overcome the inaccuracy of traditional digital imaging systems and the limits of spectrophotometer systems and provide users in the textile industry with highly accurate color measurement and evaluation.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: August 16, 2016
    Assignee: The Hong Kong Polytechnic University
    Inventors: Haozhong Xin, Sijie Shao, Huiliang Shen
  • Patent number: 9247127
    Abstract: Fast focusing methods and devices for multi-spectral imaging are disclosed. The method comprising selecting one of a plurality of imaging channel as a reference channel, adjusting rotation positions of a stepper motor, calculating focus measures corresponding to all rotation positions of the stepper motor, and obtaining a first distribution curve; in each of the other imaging channels, selecting at least three rotation positions of the stepper motor, matching focus measures at the selected rotation positions with the first distribution curve to obtain a second distribution curve and a offset value between the first distribution curve and the second distribution curve, and calculating a clear focusing position of the imaging channel to be focused according to the offset value; performing a fine-tuning focusing, and thereby obtaining a more precise clear focusing position. A fast focusing for multi-spectral imaging and obtain clear multi-spectral images is obtained.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: January 26, 2016
    Assignee: THE HONG KONG RESEARCH INSTITUTE OF TEXTILES AND APPAREL LIMITED
    Inventors: Huiliang Shen, Wei Wang, Zhi-Huan Zheng, John Haozhong Xin, Sijie Shao
  • Publication number: 20150092099
    Abstract: Fast focusing methods and devices for multi-spectral imaging are disclosed. The method comprising selecting one of a plurality of imaging channel as a reference channel, adjusting rotation positions of a stepper motor, calculating focus measures corresponding to all rotation positions of the stepper motor, and obtaining a first distribution curve; in each of the other imaging channels, selecting at least three rotation positions of the stepper motor, matching focus measures at the selected rotation positions with the first distribution curve to obtain a second distribution curve and a offset value between the first distribution curve and the second distribution curve, and calculating a clear focusing position of the imaging channel to be focused according to the offset value; performing a fine-tuning focusing, and thereby obtaining a more precise clear focusing position. A fast focusing for multi-spectral imaging and obtain clear multi-spectral images is obtained.
    Type: Application
    Filed: May 30, 2014
    Publication date: April 2, 2015
    Applicant: The Hong Kong Research Institute of Textiles and Apparel Limited
    Inventors: Huiliang Shen, Wei Wang, Zhi-Huan Zheng, John Haozhong Xin, Sijie Shao
  • Publication number: 20130293702
    Abstract: A multispectral imaging color measurement system, comprising a dark room, a sample platform and an imaging device for capturing said object being measured; a controllable illumination device, a filter wheel unit, an imaging signal processing unit and an electronic control unit. A method for processing imaging signals of the multispectral imaging color measurement is also proposed. The multispectral imaging color measurement system and the method for processing imaging signals thereof can overcome the inaccuracy of traditional digital imaging systems and the limits of spectrophotometer systems and provide users in the textile industry with highly accurate color measurement and evaluation.
    Type: Application
    Filed: August 24, 2011
    Publication date: November 7, 2013
    Applicant: THE HONG KONG RESEARCH INSTITUTE OF TEXTILES AND APPAREL LIMITED
    Inventors: Haozhong Xin, Sijie Shao, Huiliang Shen