Patents by Inventor Francesco CASCIO

Francesco CASCIO 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).

  • Defocus estimation method independent of the scene content and use in an autofocus system
    Patent number: 10523861
    Abstract: A method of adjusting a lens may include adjusting the lens at a first focus position, and acquiring a first image of a scene through the lens. The method may further include adjusting the lens at a second focus position, and acquiring a second image of the same scene through the lens. In addition, the method may include producing respective power spectra of the first and second images, and producing a criterion representing the ratio of the power spectra to estimate a focus error of the lens.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: December 31, 2019
    Assignee: STMICROELECTRONICS (GRENOBLE 2) SAS
    Inventors: Jeremie Teyssier, Francesco Cascio
  • DEFOCUS ESTIMATION METHOD INDEPENDENT OF THE SCENE CONTENT AND USE IN AN AUTOFOCUS SYSTEM
    Publication number: 20180131863
    Abstract: A method of adjusting a lens may include adjusting the lens at a first focus position, and acquiring a first image of a scene through the lens. The method may further include adjusting the lens at a second focus position, and acquiring a second image of the same scene through the lens. In addition, the method may include producing respective power spectra of the first and second images, and producing a criterion representing the ratio of the power spectra to estimate a focus error of the lens.
    Type: Application
    Filed: January 5, 2018
    Publication date: May 10, 2018
    Inventors: Jeremie Teyssier, Francesco CASCIO
  • Defocus estimation method independent of the scene content and use in an autofocus system
    Patent number: 9906707
    Abstract: A method of adjusting a lens may include adjusting the lens at a first focus position, and acquiring a first image of a scene through the lens. The method may further include adjusting the lens at a second focus position, and acquiring a second image of the same scene through the lens. In addition, the method may include producing respective power spectra of the first and second images, and producing a criterion representing the ratio of the power spectra to estimate a focus error of the lens.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: February 27, 2018
    Assignee: STMICROELECTRONICS (GRENOBLE 2) SAS
    Inventors: Jérémie Teyssier, Francesco Cascio
  • Hybrid auto-focus mechanism
    Patent number: 9420163
    Abstract: An autofocus method determines that a ranging device of a digital camera has failed in an attempt to provide a distance estimation. The ranging device provides one or more parameters indicating conditions related to the failure of the ranging device to provide the distance estimation. An autofocus sequence based on the one or more parameters is then performed.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: August 16, 2016
    Assignees: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics (Research & Development) Limited, STMicroelectronics Asia Pacific Pte Ltd
    Inventors: Laurent Plaza, Olivier Lemarchand, Paul Varillon, Francesco Cascio, Duncan Hall, Sam Lee
  • DEFOCUS ESTIMATION METHOD INDEPENDENT OF THE SCENE CONTENT AND USE IN AN AUTOFOCUS SYSTEM
    Publication number: 20160182808
    Abstract: A method of adjusting a lens may include adjusting the lens at a first focus position, and acquiring a first image of a scene through the lens. The method may further include adjusting the lens at a second focus position, and acquiring a second image of the same scene through the lens. In addition, the method may include producing respective power spectra of the first and second images, and producing a criterion representing the ratio of the power spectra to estimate a focus error of the lens.
    Type: Application
    Filed: August 24, 2015
    Publication date: June 23, 2016
    Inventors: Jérémie TEYSSIER, Francesco CASCIO
  • HYBRID AUTO-FOCUS MECHANISM
    Publication number: 20160182809
    Abstract: An autofocus method determines that a ranging device of a digital camera has failed in an attempt to provide a distance estimation. The ranging device provides one or more parameters indicating conditions related to the failure of the ranging device to provide the distance estimation. An autofocus sequence based on the one or more parameters is then performed.
    Type: Application
    Filed: September 1, 2015
    Publication date: June 23, 2016
    Applicants: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics (Research & Development) Limited, STMicroelectronics Asia Pacific Pte Ltd
    Inventors: Laurent Plaza, Olivier Lemarchand, Paul Varillon, Francesco Cascio, Duncan Hall, Sam Lee