Patents by Inventor Chi-Farn Chen

Chi-Farn Chen 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 calibrating interior and exterior orientation parameters
    Patent number: 8184144
    Abstract: The present invention calibrates interior orientation parameters (IOP) and exterior orientation parameters (EOP). With the calibrated IOPs and EOPs, a remotely controlled camera can quickly obtains corresponding IOPs and EOPs no matter on panning, tilting or zooming. Thus, the remotely controlled camera obtains accuracies on imaging and measuring and obtains wide applications.
    Type: Grant
    Filed: July 19, 2009
    Date of Patent: May 22, 2012
    Assignee: National Central University
    Inventors: Chi-Farn Chen, Li-Yu Chang, Su-Rung Yang
  • Method of Calibrating Interior and Exterior Orientation Parameters
    Publication number: 20100289869
    Abstract: The present invention calibrates interior orientation parameters (IOP) and exterior orientation parameters (EOP). With the calibrated IOPs and EOPs, a remotely controlled camera can quickly obtains corresponding IOPs and EOPs no matter on panning, tilting or zooming. Thus, the remotely controlled camera obtains accuracies on imaging and measuring and obtains wide applications.
    Type: Application
    Filed: July 19, 2009
    Publication date: November 18, 2010
    Applicant: National Central Unversity
    Inventors: Chi-Farn Chen, Li-Yu Chang, Su-Rung Yang
  • System for camera positioning and methods thereof
    Patent number: 7701488
    Abstract: A system is used to remotely control camera positioning. A transformation model is used. By in putting image coordinates of the monitored position form camera, the object coordinates is obtained and displayed on a digital map. By inputting object coordinates on a digital map, image coordinates for the camera is obtained. After transferring parameters for camera positioning, the camera is moved to a desired position for monitoring an area and taking a photo.
    Type: Grant
    Filed: August 14, 2006
    Date of Patent: April 20, 2010
    Assignee: National Central University
    Inventors: Chi-Farn Chen, Li-Yu Chang, Bing-Cyuan Lai
  • System for camera positioning and methods thereof
    Publication number: 20070296823
    Abstract: A system is used to remotely control camera positioning. A transformation model is used. By in putting image coordinates of the monitored position form camera, the object coordinates is obtained and displayed on a digital map. By inputting object coordinates on a digital map, image coordinates for the camera is obtained. After transferring parameters for camera positioning, the camera is moved to a desired position for monitoring an area and taking a photo.
    Type: Application
    Filed: August 14, 2006
    Publication date: December 27, 2007
    Applicant: National Central University
    Inventors: Chi-Farn Chen, Li-Yu Chang, Bing-Cyuan Lai