Patents by Inventor Zerun Ma

Zerun Ma 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: 12073555
    Abstract: A system for inspecting a reflective surface includes a first imaging assembly configured to take a first image of the reflective surface. The first image includes depth information. The system also includes a second imaging assembly configured to take a second image of the reflective surface. The second image includes contrast information. The system further includes a processor configured to acquire the first image and the second image, estimate a depth profile of the surface based on the depth information, correlate the depth profile with the second image, and identify a feature of the reflective surface based on the correlation.
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: August 27, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Zerun Ma, Guangze Li, Hui-ping Wang, Yan Cai, Blair E. Carlson
  • Publication number: 20230214988
    Abstract: A system for inspecting a reflective surface includes a first imaging assembly configured to take a first image of the reflective surface, the first image including depth information, a second imaging assembly configured to take a second image of the reflective surface, the second image including contrast information, and a processor configured to acquire the first image and the second image. The processor is configured to perform: estimating a depth profile of the surface based on the depth information, correlating the depth profile with the second image, and identifying a feature of the reflective surface based on the correlation.
    Type: Application
    Filed: February 8, 2022
    Publication date: July 6, 2023
    Inventors: Zerun Ma, Guangze Li, Hui-ping Wang, Yan Cai, Blair E. Carlson