Patents by Inventor Bennett S Wilburn

Bennett S Wilburn 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).

  • RADIOMETRIC CALIBRATION USING TEMPORAL IRRADIANCE MIXTURES
    Publication number: 20090303330
    Abstract: A method of calibrating a brightness value measured by a camera with an amount of light received by the camera includes creating a series of measurements, wherein for each measurement the amount of light received at an image plane in the camera is controlled to be a known ratio of two opposed irradiance values: a high irradiance value and a low irradiance value. Each ratio is correlated with the brightness value measured by the camera. A function is obtained describing the correlation.
    Type: Application
    Filed: June 6, 2008
    Publication date: December 10, 2009
    Applicant: MICROSOFT CORPORATION
    Inventors: Yasuyuki Matsushita, Bennett S. Wilburn
  • Photodiode-based Bi-Directional Reflectance Distribution Function (BRDF) Measurement
    Publication number: 20090079987
    Abstract: Photodiode-based bi-directional reflectance distribution function (BRDF) measurement is described. Multiple photodiodes are distributed approximately symmetrically at a fixed distance from a surface to be measured. One or more of the photodiodes are directed to emit light, while readings are gathered from the other photodiodes that are not emitting light. The readings are processed based on previously measured calibration data to generate BRDF values.
    Type: Application
    Filed: July 15, 2008
    Publication date: March 26, 2009
    Applicant: Microsoft Corporation
    Inventors: Moshe Ben-Ezra, Yasuyuki Matsushita, Bennett S. Wilburn, Xiaoyang Li