One-dimensional barcode decoding system using correlation method

• Main Authors: Lin Yu-Kai, 林郁愷
• Other Authors: WANG PENG-HUA
• Format: Others
• Language: en_US
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/76322931757630543036

碩士 === 國立臺北大學 === 通訊工程研究所 === 99 === Abstract—One-dimensional barcodes are composed of different width of black and space, according to the coding rule. One-dimensional barcodes widely apply in the circulation of commodities, the management of books and postal delivery, the banking system. In this paper, we discuss the method of decoding the one-dimensional barcodes.We propose a method of locating barcodes in images with complex background. The method of segmenting the barcode from a row is proposed. It is necessary for segmenting a barcode to use the characteristics of barcodes. The target symbology is Code39 and EAN13. EAN13 is characterized by fixed length of 95 minimal bars. The length of Code39 is variable and depends on the encoded digits. We use correlation for decoding and implement the proposed method in both off-line test and real-time realization.