期刊
OPTICS EXPRESS
卷 20, 期 22, 页码 24382-24393出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.20.024382
关键词
-
类别
资金
- Chung-Shan Institute of Science and Technology, Taiwan [XV98K61P134PE, CSIST-757-V204, CSIST-757-V305]
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. (C) 2012 Optical Society of America
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据