Biblio

High-precision scanners, copiers and other equipment to copy the image compared with the original, you can achieve a very realistic effect. There is a certain threat to the copyright of the manuscript. In view of this phenomenon, a design method of metameric security images with anti-counterfeiting and anti-copy function is presented on this paper. Metameric security images are designed and printed by the theory of metameric color and the four-color ink spectral characteristics. The realization of anti-counterfeiting function is based on the difference of K ink content in proportion of CMYK. In the metameric security images, trademark image display for the CMYK color, and visible under the sunlight. Anti-counterfeiting images appear as monochrome K ink, and visible under the infrared. The experimental results show that the metameric security images with infrared detection device and its characteristics under the infrared light source are observed the clear hidden information. It realizes the anti-counterfeiting function. The method can be applied to various industries in the trademark image security.

RFID-enabled product supply chain visibility is usually implemented by building up a view of the product history of its activities starting from manufacturing or even earlier with a dynamically updated e-pedigree for track-and-trace, which is examined and authenticated at each node of the supply chain for data consistence with the pre-defined one. However, while effectively reducing the risk of fakes, this visibility can't guarantee that the product is authentic without taking further security measures. To the best of our knowledge, this requires deeper understandings on associations of object events with the counterfeiting activities, which is unfortunately left blank. In this paper, the taxonomy of counterfeiting possibilities is initially developed and analyzed, the structure of EPC-based events is then re-examined, and an object-centric coding mechanism is proposed to construct the object-based event “pedigree” for such event exception detection and inference. On this basis, the system architecture framework to achieve the objectivity of object event visibility for anti-counterfeiting is presented, which is also applicable to other aspects of supply chain management.