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:
Jan. 16, 2007
Filed:
Mar. 04, 2003
Hyun-woo Kim, Kyungki-do, KR;
Tae-kyun Kim, Kyungki-do, KR;
Seok-cheol Kee, Kyungki-do, KR;
Jong-ha Lee, Kyungki-do, KR;
Won-jun Hwang, Seoul, KR;
Chang-kyu Choi, Seoul, KR;
Hyun-woo Kim, Kyungki-do, KR;
Tae-kyun Kim, Kyungki-do, KR;
Seok-cheol Kee, Kyungki-do, KR;
Jong-ha Lee, Kyungki-do, KR;
Won-jun Hwang, Seoul, KR;
Chang-kyu Choi, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A method and apparatus for recognizing and searching for a face using 2nd-order independent component analysis (ICA) are provided. The method includes performing PCA on an input original image and generating a low-pass filtered image by removing high-frequency component from the original image, subtracting the low-pass filtered image from the original image and obtaining residual image having only frequency-components, and performing ICA on the residual image and generating feature information corresponding to the original image. While an original ICA subtracts independent components (i.e., independent basis components) from gray scale images, the proposed 2nd-order ICA is robust to illumination variation since it is applied to make the remaining images correspond to high pass frequency components.