Patents by Inventor Zachary LAZRI

Zachary LAZRI 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: 12245845
    Abstract: Systems, methods, apparatuses, and computer program products for contact-free heart rate monitoring and/or measurement are provided. One method may include receiving video(s) that include visual frame(s) of individual(s) performing exercises, detecting some exposed skin from the video(s), and performing motion compensation to generate color signals for the exposed skin to precisely align frames of the exposed skin. The method may also include generating the color signals by estimating a skin color for each frame by taking a spatial average over pixels of a cheek of the face(s) for R, G, and B channels, respectively, applying an operation to remove remaining motion traces from the frames such that the heart rate traces dominate, and extracting and/or outputting the heart rate of the individuals using a frequency estimator of the skin color signals.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: March 11, 2025
    Assignees: UNIVERSITY OF MARYLAND, COLLEGE PARK, NORTH CAROLINA STATE UNIVERSITY
    Inventors: Min Wu, Chau-Wai Wong, Mingliang Chen, Qiang Zhu, Zachary Lazri
  • Publication number: 20210386307
    Abstract: Systems, methods, apparatuses, and computer program products for contact-free heart rate monitoring and/or measurement are provided. One method may include receiving video(s) that include visual frame(s) of individual(s) performing exercises, detecting some exposed skin from the video(s), and performing motion compensation to generate color signals for the exposed skin to precisely align frames of the exposed skin. The method may also include generating the color signals by estimating a skin color for each frame by taking a spatial average over pixels of a cheek of the face(s) for R, G, and B channels, respectively, applying an operation to remove remaining motion traces from the frames such that the heart rate traces dominate, and extracting and/or outputting the heart rate of the individuals using a frequency estimator of the skin color signals.
    Type: Application
    Filed: August 26, 2021
    Publication date: December 16, 2021
    Inventors: Min WU, Chau-Wai WONG, Mingliang CHEN, Qiang ZHU, Zachary LAZRI