We investigate the problem of decoding a bar code from a signal measured with a hand-held laserbased scanner. Rather than formulating the inverse problem as one of binary image reconstruction, we instead incorporate the symbology of the bar code into the reconstruction algorithm directly, and search for a sparse representation of the UPC bar code with respect to this known dictionary. Our appro...

A stu~$~ o/the acoustic backxatteringproduced by m army of scattering spheresfixed to ajishing net is reported. The System enhances net detection and also allows net identijcation by using a method in which the echogram is arranged to resemble a commercial bar-code. A simplijied theoretical model has been developed to shrdy the inlerference due to echo formation. This model establishes the rela...

A new digital watermarking algorithm for images with bar code and digital signature is proposed. Digital signature is used to prevent a buyer from distributing unauthorized image copies and is also used to prevent a seller from forging the sale transaction of image copies without a buyer. We encode both the buyer’s and the seller’s signature into a bar-code and embed the bar-code into the image...

Traceability system is regarded as an effective method to ensure quality safety of agricultural products by countries all over the world. In this study, based on the research of EAN·UCC system, UCC/EAN-128 bar code technology was applied in fruit safety traceability system, coding rule for traceable code was established, and the traceable label for fruit product was designed. By integrating dat...

Bar code provides convenient way for people labeling a tag on a product so that people can easily and quickly identify the content of product itself. Large information of any product can be store in the form of bar codes which reduces the size of data. When this bar code contains important data or privacy information, the risk of security becomes an important problem. This paper proposes a secr...

For decades, researchers have been trying to create intuitive virtual environments by blending reality and virtual reality, thus enabling general users to interact with the digital domain as easily as with the real world. The result is “augmented reality” (AR). AR seamlessly superimposes virtual objects on to a real environment in three dimensions (3D) and in real time. One of the most importan...