Robust laser speckle recognition system for authenticity identification

Chia Hung Yeh, Po Yi Sung, Chih Hung Kuo, Ruey Nan Yeh

研究成果: Article同行評審

12 引文 斯高帕斯(Scopus)


This paper proposes a laser speckle recognition system for authenticity verification. Because of the unique imperfection surfaces of objects, laser speckle provides identifiable features for authentication. A Gabor filter, SIFT (Scale-Invariant Feature Transform), and projection were used to extract the features of laser speckle images. To accelerate the matching process, the extracted Gabor features were organized into an indexing structure using the K-means algorithm. Plastic cards were used as the target objects in the proposed system and the hardware of the speckle capturing system was built. The experimental results showed that the retrieval performance of the proposed method is accurate when the database contains 516 laser speckle images. The proposed system is robust and feasible for authenticity verification.

頁(從 - 到)24382-24393
期刊Optics Express
出版狀態Published - 2012 十月 22

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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