An anti-counterfeiting method and system using physical feature recognition

Abstract

The invention discloses an anti-fake method using physical feature recognition and an anti-fake system using the physical feature recognition. The method comprises the steps of confirming the position for collecting physical features in an object to be identified in advance, placing the object to be identified under shining of a light source, and conducting physical feature picture collection through reflected picture collection of an optical system and an optical sensor. Times of the physical feature picture collection are at least twice. The physical feature picture collection for the first time is achieved under the shining of a first light source at a first preset angle. The physical feature picture collection for the second time is achieved under the shining of a second light source at a second preset angle. The first preset angle and the second preset angle ensure an identifiable difference between the physical feather pictures under the shining of the two light sources. According to the anti-fake method using physical feature recognition and the anti-fake system using the physical feature recognition, due to the fact that of twice reflection manner is adopted and pattern recognition and anti-fake are achieved through a manner that paper own fiber texture is collected through optic devices, attack of print paper texture is effectively defended.

Description

technical field [0001] The invention relates to a physical anti-counterfeiting method and system for substances, in particular to a method and system for realizing anti-counterfeiting by using physical characteristics collected by irradiating substances. Background technique [0002] The paper anti-counterfeiting or bill anti-counterfeiting in the prior art mainly achieves the purpose of anti-counterfeiting by adding specially controlled raw materials or special paper, and through strict control of raw materials or related technologies, such as adding fluorescent fibers to paper to achieve physical uniqueness of features. [0003] However, when certain physical characteristic raw materials or technical controls are used to realize paper anti-counterfeiting, such as adding fluorescent fibers, higher processing technology is required, which requires high production cost and technical level, and the systematization requirements for its realization are complex and need to be dev...

AI Technical Summary

Problems solved by technology

Once the exclusiveness of the material or technology used for anti-counterfeiting is lost, such anti-counterfeiting technology will also lose the meaning of anti-counterfeiting

In addition, in terms of fluorescent fiber anti-counterfeiting, it is also unable to resist fluorescent printing clones

[0004] In the prior art, the technical scheme adopted by the inventor of the present invention is as follows: figure 2 As shown, it is a technology to directly capture paper texture features through magnification, but it is difficult to capture clear images when collecting images, especially when images with large magnifications are collected.

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