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.:

US 8942485 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 27, 2015

Filed:

Aug. 30, 2013
Applicants:

Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd., Shenzhen, CN;

Hon Hai Precision Industry Co., Ltd., New Taipei, TW;

Inventor:

Guang-Jian Wang, Shenzhen, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/50 (2006.01); G06K 9/00 (2006.01); G06K 9/46 (2006.01);
U.S. Cl.
CPC ...
G06K 9/4604 (2013.01); G06K 9/00624 (2013.01);
Abstract

An electronic device stores haar-like features and geometrical features of an object. A reference image of the object is created according to the geometrical features of the object. An outline image is obtained from each image of the object. The electronic device calculates derivatives of each two adjacent points on the reference image and each outline image. A derivative matrix of the reference image and a derivative matrix of each outline image are generated. The electronic device generates a first derivative curve corresponding to the derivative matrix of the reference image and a second derivative curve corresponding to each derivative matrix of the outline image. When all the second derivative curves are the same as the first derivative curve, the electronic device determines whether each outline image is corresponding to the object by using the haar-like features of the object.


Find Patent Forward Citations

Wang, Guang-Jian. (2015). Electronic device and method for recognizing features of objects (U.S. Patent No. 8942485). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8942485

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