Recognition Of QR Code And Application In Cell Phone

1D bar code is wildly used in industrial production which improves productivity greatly, but its disadvantage has been growing up because of limited information and dependence on the database. With higher capacity, higher density, more powerful error-correction ability and higher security ability, two-dimensional Bar Code has played an important role gradually in the information automatic field.Based on digital image processing and combined coding theory, two-dimensional matrix bar code is a symbol system processed automatically using image recognition technology. Because two-dimensional bar codes relatively higher density information, its recognition technology is more complex than that of one-dimensional bar. So recognizing 2D bar code fleetly and effectively becomes an important field.Take QR code as an example, firstly, the location and segment technology of two-dimensional bar code is discussed. Secondly, coding and decoding of QR code are discussed in detail. This paper succeeds in implementing intelligent analysis of the QR Code image. This method can reduce the identification time effectively and it can identify the ordinary pictures which are taken by the cell phone. The method makes it is possible to transplant the software to the cell phone.At last, we discussed the available examples in actual application of cell phone, which provides the basic theory and primary practice experience for the system. It can be proved that the system will achieve fast development along with the 3G ages.