Patents by Inventor Shengfu Lv

Shengfu Lv 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: 20240065595
    Abstract: A method and system for calculating emotional indicators based on pupil-wave are provided. The operation of calculating emotional indicators based on a pupil-wave may include the following operations. A pupil-wave is collected when a subject is in a calm state and set as a standard pupil-wave; Obtaining emotional indicators and corresponding emotions used to measure a mental state. The pupil-wave of the subject in each emotional state is collected and set as an emotional pupil-wave; According to the standard pupil-wave, a bandwidth and differential pupil-wave corresponding to each emotion are calculated; The standard, emotional, bandwidth and differential pupil-wave are input into a pre-trained deep convolutional neural network to obtain index values of emotional indicators.
    Type: Application
    Filed: November 6, 2023
    Publication date: February 29, 2024
    Applicant: Beijing University Of Technology
    Inventors: Mi LI, Bin HU, Shengfu LV, Jiaming KANG, Wei ZHANG
  • Patent number: 9532711
    Abstract: The present disclosure relates to methods for measuring affective bandwidth of a subject (e.g., a human) and determining depression determination of the subject. The affective bandwidth measurement may include the following operations. For example, the subject may watch positive neutral and negative pictures for 8-10 seconds, respectively. Information for all fixation points may be obtained using an eye movement tracking device. Pupil diameter sizes of the subject while watching the positive, neutral and negative picture tasks may be calculated, and the affective bandwidth may be calculated. The affective bandwidth may include positive affective bandwidth (positive-neutral), negative affective bandwidth (negative-neutral) and positive-negative affective bandwidth (positive-negative) of the subject.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: January 3, 2017
    Assignee: Beijing University of Technology
    Inventors: Mi Li, Shengfu Lv, Gang Wang, Ning Zhong
  • Publication number: 20150289761
    Abstract: The present disclosure relates to methods for measuring affective bandwidth of a subject (e.g., a human) and determining depression determination of the subject. The affective bandwidth measurement may include the following operations. For example, the subject may watch positive neutral and negative pictures for 8-10 seconds, respectively. Information for all fixation points may be obtained using an eye movement tracking device. Pupil diameter sizes of the subject while watching the positive, neutral and negative picture tasks may be calculated, and the affective bandwidth may be calculated. The affective bandwidth may include positive affective bandwidth (positive-neutral), negative affective bandwidth (negative-neutral) and positive-negative affective bandwidth (positive-negative) of the subject.
    Type: Application
    Filed: June 5, 2015
    Publication date: October 15, 2015
    Inventors: Mi Li, Shengfu Lv, Gang Wang, Ning Zhong