Patents by Inventor Chul-Han Lee

Chul-Han Lee 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).

  • Apparatus and methods for capturing a fingerprint
    Patent number: 7970185
    Abstract: An apparatus and methods for capturing a fingerprint are provided. In a first example method, first fingerprint image may be obtained in a guard region within a captured image, the guard region including less than all of the captured image. A fingerprint region may be extracted from the captured image based on a predicted color distribution, the predicted color distribution based on color information associated with the first fingerprint image, the extracted fingerprint region including the first fingerprint image within the guard region and at least a portion of the fingerprint region extending beyond the guard region within the captured image. In a second example method, guard region may be defined within a picture boundary area, the defined guard region including less than all of the picture boundary area. At least one image may be captured, the captured image spanning the picture boundary area. Information associated with the captured image may be extracted from within the guard region.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: June 28, 2011
    Assignees: Samsung Electronics Co., Ltd., Educational Foundation of Yonsei University
    Inventors: Sung-Jae Kim, Jai-Hie Kim, Sang-Hoon Lee, Chul-Han Lee
  • Apparatus and methods for capturing a fingerprint
    Publication number: 20070047783
    Abstract: An apparatus and methods for capturing a fingerprint are provided. In a first example method, first fingerprint image may be obtained in a guard region within a captured image, the guard region including less than all of the captured image. A fingerprint region may be extracted from the captured image based on a predicted color distribution, the predicted color distribution based on color information associated with the first fingerprint image, the extracted fingerprint region including the first fingerprint image within the guard region and at least a portion of the fingerprint region extending beyond the guard region within the captured image. In a second example method, guard region may be defined within a picture boundary area, the defined guard region including less than all of the picture boundary area. At least one image may be captured, the captured image spanning the picture boundary area. Information associated with the captured image may be extracted from within the guard region.
    Type: Application
    Filed: June 22, 2006
    Publication date: March 1, 2007
    Inventors: Sung-Jae Kim, Jai-Hie Kim, Sang-Hoon Lee, Chul-Han Lee