Implementation of An Incomplete Barcode Reading System in Embedded Systems
| Autor: | Wei-Chieh Chu, 朱偉傑 |
|---|---|
| Rok vydání: | 2009 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 97 Since the invention of barcode has been significantly improved people''s living habits. Nowadays, we can see barcodes across everywhere. Barcodes use a set of simple black-and-white stripes as a symbol of the storage signal. It can reduce a great deal of manpower and time for inputting the data, and widely used in commodity management, warehousing, logistics, library management and other fields. General barcode system uses a CCD or a laser scanner with a light source as the main decoding tool. It is not only more expensive, but also a certain distance to scan. In order to reduce costs of the scanner and increase the application, there have been some people capture barcode images by digital cameras or digital video recorders, and decode the barcode by methods of image processing. However, from related literatures, we can find most of the barcode identification methods are required to identify the main body, and when the barcode is incomplete or dirt, the case of damage will not be able to identify success. Therefore, in the embedded system, we use a digital camera as a barcode capture tool, and develop new barcode recognition methods. In addition to recognize the main barcode, we also recognize the number of barcode at the same time. Exert advantages of image processing to improve the correct rate of identification. At last, we propose a method of comparison, when the barcode is incomplete or damaged, it can make use of cross-reference to get the correct results. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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