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:
Feb. 05, 2013
Filed:
Feb. 22, 2008
Hsiang-tsun LI, San Diego, CA (US);
Jingqiang LI, San Diego, CA (US);
Hau Hwang, San Diego, CA (US);
Xiaoyun Jiang, San Diego, CA (US);
Joseph Cheung, San Diego, CA (US);
Hsiang-Tsun Li, San Diego, CA (US);
Jingqiang Li, San Diego, CA (US);
Hau Hwang, San Diego, CA (US);
Xiaoyun Jiang, San Diego, CA (US);
Joseph Cheung, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
This disclosure describes techniques for detecting a barcode within an image. An image processor may, for example, process an image to detect regions within the image that may be barcodes. The image processor may identify regions of the image that exhibit a high concentration of edges and a high concentration of pixels with low optical intensity co-instantaneously as potential barcodes. The image processor may identify the regions using a number of morphological operations. The image processor may then determine whether the identified regions are actually barcodes by verifying whether the region have unique barcode features. The barcode detection techniques described in this disclosure may be independent of barcode size, location and orientation within the image. Moreover, the use of morphological operations results in faster and more computationally efficient barcode detection, as well as lower computational complexity.