Patents by Inventor Jing-Fu Liu

Jing-Fu Liu 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: 8311283
    Abstract: A method for detecting the lane departure of a vehicle includes an image recognition process and a deviation estimation process. The image recognition process includes the following steps: an image capturing step for capturing image frame data by using an image capturing unit; and a lane line recognition for analyzing the image frame data for determining the lane lines. By using a quadratic curve fitting equation, a plurality of lane line being detected so as to establish a road geometry estimation model. The road geometry estimation model is inputted into the deviation estimation process to detect the lane departure of the vehicle so as to alert the driver. Furthermore, an apparatus for detecting the deviation of the vehicle, comprising: an image capturing unit, a processing unit and a signal output unit.
    Type: Grant
    Filed: July 6, 2008
    Date of Patent: November 13, 2012
    Assignee: Automotive Research&Testing Center
    Inventors: Jui-Hung Wu, Jing-Fu Liu, Yi-Feng Su
  • Patent number: 7737866
    Abstract: An auto-parking device installed on a vehicle comprises a vehicle status sensing unit for detecting a state of a vehicle, an image acquisition unit for capturing vehicle outside image, a range sensing unit for measuring the space, a processing unit for receiving states of the vehicle from the vehicle status sensing unit, receiving environmental states from the image acquisition unit and range sensing unit, calculating a parking path based on parallel parking or back-in parking and then controlling the vehicle steering, throttle and brake via a driving control unit to automatically park the car into the space as per the planned parking path.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: June 15, 2010
    Assignee: Automotive Research & Testing Center
    Inventors: Jui-Hung Wu, Jing-Fu Liu, Wang-Shuan Lee
  • Publication number: 20100002911
    Abstract: A method for detecting the lane departure of a vehicle includes an image recognition process and a deviation estimation process. The image recognition process includes the following steps: an image capturing step for capturing image frame data by using an image capturing unit; and a lane line recognition for analyzing the image frame data for determining the lane lines. By using a quadratic curve fitting equation, a plurality of lane line being detected so as to establish a road geometry estimation model. The road geometry estimation model is inputted into the deviation estimation process to detect the lane departure of the vehicle so as to alert the driver. Furthermore, an apparatus for detecting the deviation of the vehicle, comprising: an image capturing unit, a processing unit and a signal output unit.
    Type: Application
    Filed: July 6, 2008
    Publication date: January 7, 2010
    Inventors: Jui-Hung Wu, Yi-Feng Su, Jing-Fu Liu
  • Publication number: 20090085771
    Abstract: An auto-parking device installed on a vehicle comprises a vehicle status sensing unit for detecting a state of a vehicle, an image acquisition unit for capturing vehicle outside image, a range sensing unit for measuring the space, a processing unit for receiving states of the vehicle from the vehicle status sensing unit, receiving environmental states from the image acquisition unit and range sensing unit, calculating a parking path based on parallel parking or back-in parking and then controlling the vehicle steering, throttle and brake via a driving control unit to automatically park the car into the space as per the planned parking path.
    Type: Application
    Filed: September 27, 2007
    Publication date: April 2, 2009
    Inventors: Jui-Hung Wu, Jing-Fu Liu, Wang-Shuan Lee