Face detecting system and method using symmetric axis

Details Face detecting system and method using symmetric axis Face detecting system and method using symmetric axis

2004-06-22

2008-09-16

Chawan, Sheela C (Department: 2624)

Image analysis

Applications

Personnel identification

C382S190000, C382S195000

Reexamination Certificate

active

07426287

ABSTRACT:
A face detecting system using a symmetric axis includes: an image inputting unit for inputting a still image thereto; an image converting unit for reducing the inputted image to a first certain size of image for a real-time process by using a pyramidal resolution reduction way; a scanning unit for scanning the reduced image by applying a second certain size of symmetric mask; a region dividing unit for dividing a region of the scanned mask into a left region and a right region with respect to the symmetric axis; a symmetric-similarity computing unit for computing a symmetric similarity of a local region at the two divided regions and then computing a symmetric similarity of a global region to compute a symmetric similarity of a face region; and a face region extracting unit for extracting a region having a symmetric axis at which the computed symmetric similarity is above a predetermined value, as the face region.

REFERENCES:
patent: 7035467 (2006-04-01), Nicponski
patent: 7050607 (2006-05-01), Li et al.
patent: 7099510 (2006-08-01), Jones et al.
patent: 2001-50988 (2002-06-01), None
patent: 10-2003-0057979 (2005-03-01), None
Sang-Hoon Kim; “Facial Features and Motion Recovery using multi-modal information and Paraperspective Camera Model”; Korean Information Management Institute Thesis; vol. 9-B; No. 5; Oct. 2002; pp. 563-570.
Daeho Lee, et al.; “Geometrical Feature-Based Detection of Pure Facial Regions”; Korean Information Management Institute Thesis: Software and Application; vol. 30, No. 8; Aug. 2003; pp. 773-779.

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