Robust laser speckle recognition system for authenticity identification

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

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

17 引文 斯高帕斯(Scopus)

摘要

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.

原文英語
頁(從 - 到)24382-24393
頁數12
期刊Optics Express
20
發行號22
DOIs
出版狀態已發佈 - 2012 10月 22
對外發佈

ASJC Scopus subject areas

  • 原子與分子物理與光學

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