Patents by Inventor Thi Thanh Tuyen NGUYEN

Thi Thanh Tuyen NGUYEN 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: 10152792
    Abstract: The present invention relates to a method and apparatus for identifying a living eye, in which IR LED lighting and lighting for varying the ambient illumination are installed on the front surface or one side of an iris recognition camera so as to determine whether an iris of an eye is an iris of a living eye when capturing an iris image by the iris recognition camera, using one or more criteria of whether the ratio of the sizes of the iris and pupil changes by the variation of the ambient illumination, whether the number or location of the IR LEDs focused on the iris and/or the pupil changes, whether the region of the iris image changes by eye blinking, and whether the direction of the gaze changes.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: December 11, 2018
    Assignees: Iritech, Inc., Dae Hoon Kim
    Inventors: Dae Hoon Kim, Hyeong In Choi, Byoung Jin Jun, Min Su Oh, Tran Ho Truc Phan, Thi Thanh Tuyen Nguyen, Vladimir Novik
  • Publication number: 20160335495
    Abstract: The present invention relates to an apparatus and method for acquiring an image for iris recognition using a distance of a facial feature, the apparatus comprising: a buffer for photographing one or more facial images of a subject being photographed so as to acquire an image for iris recognition and storing the photographed facial images; a facial feature distance calculating unit for calculating a distance of a facial feature from the facial images stored in the buffer; an actual distance estimating unit for estimating an actual distance between the subject being photographed and a camera from the distance of the face feature calculated by the facial feature distance calculating unit, and confirming, from of the estimated distance, that the subject being photographed exists in an iris photographing space; and an iris image acquiring unit for acquiring an eye image from the facial images of the subject being photographed that has been confirmed as existing in the iris photographing space by the actual distanc
    Type: Application
    Filed: December 30, 2014
    Publication date: November 17, 2016
    Inventors: Dae Hoon KIM, Hyeong In CHOI, Byung Jin JUN, Thi Thanh Tuyen NGUYEN, Su Jin CHOI, Haeng Moon KIM
  • Publication number: 20150294464
    Abstract: The present invention relates to a method and apparatus for identifying a living eye, in which IR LED lighting and lighting for varying the ambient illumination are installed on the front surface or one side of an iris recognition camera so as to determine whether an iris of an eye is an iris of a living eye when capturing an iris image by the iris recognition camera, using one or more criteria of whether the ratio of the sizes of the iris and pupil changes by the variation of the ambient illumination, whether the number or location of the IR LEDs focused on the iris and/or the pupil changes, whether the region of the iris image changes by eye blinking, and whether the direction of the gaze changes.
    Type: Application
    Filed: December 6, 2012
    Publication date: October 15, 2015
    Inventors: Dae Hoon KIM, Hyeong In CHOI, Byoung Jin JUN, Min Su OH, Tran Ho Truc PHAN, Thi Thanh Tuyen NGUYEN, Vladimir NOVIK