Patents by Inventor Fangwei Cai

Fangwei Cai 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).

  • Method of measuring light using dual cameras
    Patent number: 10609299
    Abstract: A method of measuring lighting condition using dual cameras, having capturing a reference image, estimating a first minimum exposure target value, capturing a first plurality of minimum exposure value images, determining a first overall minimum exposure value, estimating a first maximum exposure target value, capturing a first plurality of maximum exposure value images, determining a first overall maximum exposure value of the first plurality of associated maximum exposure values and estimating a first dynamic exposure range as encompassing a first range having the first overall minimum exposure value as a first lower bound and the first overall maximum exposure value as a first upper bound.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: March 31, 2020
    Assignee: Black Sesame International Holding Limited
    Inventors: Chao Wang, Fangwei Cai, Donghui Wu
  • METHOD OF MEASURING LIGHT USING DUAL CAMERAS
    Publication number: 20200092457
    Abstract: A method of measuring lighting condition using dual cameras, having capturing a reference image, estimating a first minimum exposure target value, capturing a first plurality of minimum exposure value images, determining a first overall minimum exposure value, estimating a first maximum exposure target value, capturing a first plurality of maximum exposure value images, determining a first overall maximum exposure value of the first plurality of associated maximum exposure values and estimating a first dynamic exposure range as encompassing a first range having the first overall minimum exposure value as a first lower bound and the first overall maximum exposure value as a first upper bound.
    Type: Application
    Filed: January 22, 2019
    Publication date: March 19, 2020
    Inventors: Chao Wang, Fangwei Cai, Donghui Wu