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 8599270 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 03, 2013

Filed:

Apr. 10, 2012
Applicant:

Wen-wu Wu, Shenzhen, CN;

Inventor:

Wen-Wu Wu, Shenzhen, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 5/225 (2006.01); H04N 5/76 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a method for identifying differences between two images using a computing device, a digital image of the object is captured using an image capturing device, and a standard image of the object is obtained from a storage system of the computing device. A threshold value is generated according to pixel values of the digital image and the standard image. The method extracts first feature points from the digital image and second feature points from the second gray picture according to the threshold value. The method further determines a first feature area of the first gray picture according to the first feature points, determines a second feature area of the second gray picture according to the second feature points, and compares the first feature area with the second feature area to identify a difference between the digital image and the standard image.


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