Anti-counterfeit method for random texture and recognizer thereof

摘要

An anti-counterfeit method for random textures and a recognizer thereof The method includes: A. selecting texture material 2 with texture elements 1 distributed randomly; B. a recognition system storing inherent recognition features J of texture elements 1; C. extracting random features S of distribution of texture element 1 and storing in the recognition system, texture material 2 being anti-counterfeit identification 3; D. the recognition system extracting features J′ and random features S′ of texture elements 1′ to be recognized on anti-counterfeit identification 3′, and comparing respectively features J′ with recognition features J as well as random features S′ and random features S. If the compared results do not match, anti-counterfeit identification 3′ is judged not to be anti-counterfeit identification 3. Otherwise, anti-counterfeit identification 3′ is judged to be anti-counterfeit identification 3. The method can prevent inherent features of a texture element from being imitated and deceived by printed texture elements.

主权项

1. An anti-counterfeit method of random texture that includes following steps:
A. Selecting texture material distributed randomly with texture elements; B. Storing inherent recognition features J of texture elements into a recognition system; C. Extracting random features S of distribution of texture elements and storing them into the recognition system to make the texture material to be an anti-counterfeit identification; D. In recognizing, the recognition system extracts features J′ and random features S′ of texture elements to be recognized on the anti-counterfeit identification to be recognized, respectively compares the features J′ and the inherent recognition features J as well as the random features S′ and the random features S; if one or two of the compared results does not match, anti-counterfeit identification to be recognized is judged not to be said anti-counterfeit identification; if both of two compared results match, anti-counterfeit identification to be recognized is judged to be said anti-counterfeit identification; said inherent recognition features J is a feature having difference of characteristics, wherein said feature having difference of characteristics means that said texture element shows different characteristics when radiating said texture element from different radiating angles, said difference of characteristics comprises difference of optical characteristics and/or difference of spectrum characteristics and/or difference of shadows and said difference of characteristics can be recognized by said recognition system.