Digital identification method of nano watermark

Abstract

The invention provides a digital identification method of a nano watermark. The digital identification method is characterized in that the nano watermark is partitioned by physical, chemical, mechanical and microelectronic technology, and the coding library building and identification are carried out according to the nuclear track characteristics in cells, so that the microscopic image library building and image matching identification of a nuclear track group are changed into cell digital library building and digital identification guided by cell numbers, and thus the information transmission of the nuclear track characteristic is realized, the identification time is substantially shortened, and the identification accuracy and the fault tolerance are substantially improved.

Description

Technical field [0001] The invention belongs to an identification method of anti-counterfeit paper, in particular to a nano watermark identification method formed by adopting a partition number naming process. technical background [0002] The so-called nano-watermark refers to the traces left by microscopic particles when they travel in a solid medium. Because its scale is equivalent to nanoscale, it is called nano-watermark, and because it is mainly produced by accelerators to accelerate charged particles such as nuclei, it is It is called nuclear watermarking. The invention patent "Nano Watermark Paper and Its Manufacturing Method" published on July 4, 2007 (Patent No. 200510135566.6) provides its production process. Compared with traditional watermarks, its main advantage is that it has strong anti-counterfeiting strength. It is a group sculpture effect produced by a large number of heavy charged particles randomly injected into a solid medium. At present, people cannot...

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Problems solved by technology

The invention patent "Nano Watermark Paper and Its Manufacturing Method" published on July 4, 2007 (Patent No. 200510135566.6) provides its production process. Compared with traditional watermarks, its main advantage is that it has strong anti-counterfeiting strength. It is a group sculpture effect produced by a large number of heavy charged particles randomly injected into a solid medium. At present, people cannot control the microscopic state of each atomic nucleus, so even if the equipment, materials and processes used to produce nano watermarks are all disclosed, they still cannot be imitated. Microscopic three-dimensional distribution of the same nano-watermark

How to accurately identify nano watermarks is described in detail in the invention patent "A Nuclear Imaging Analyzer for Nuclear Track Detection" (Patent No. 200610007952.1) published on August 29, 2007. Although the instrument can The identification center can accurately identify the authenticity of the track distribution map, but the required identification time is relatively long, which is insufficient in some applications

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