The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 26, 2012
Filed:
Jan. 15, 2009
Lei Zhang, Hong Kong, HK;
Lin Zhang, Hong Kong, HK;
Hailong Zhu, Hong Kong, HK;
David Zhang, Hong Kong, HK;
Nan Luo, Hong Kong, HK;
Lei Zhang, Hong Kong, HK;
Lin Zhang, Hong Kong, HK;
Hailong Zhu, Hong Kong, HK;
David Zhang, Hong Kong, HK;
Nan Luo, Hong Kong, HK;
The Hong Kong Polytechnic University, Kowloon, HK;
Abstract
A method for identifying a person using their finger-joint print including the outer skin around the proximal interphalangeal joint of a finger, the method comprising: capturing () an image of the finger-joint print of the person; extracting () a region of interest (ROI) based on a local convexity property of the finger-joint print; extracting () features representing the orientation of the lines in a finger-joint print image from the ROI using an extended Gabor phase coding scheme and the extracted features are represented in competitive code maps; wherein angular distance between the competitive code maps is compared () with a reference set in a database to identify the person.