The 2-D bar code possesses large capacity of data, strong ability for error correction, and high safety, which boosts the 2-D bar code recognition technology being widely used and developed fast. This paper presents a novel algorithm for locating data matrix code based on finder pattern detection and bar code border fitting. The proposed method mainly involves three stages. It first extracts ca...

The development in the late 1980s of two dimensional bar code symbologies capable of storing kilobytes of information in a single symbol and unlimited data in multiple symbols has led to the suggestion that bar code could be used as a medium for transmitting EDI messages. This paper considers whether such a suggestion targets any real business problem and whether such a system would work in pra...