Block Pyramid Based Adaptive Quantization Watermarking for Multimodal Biometric Authentication | |
Bin Ma; ChunLei Li; Yunhong Wang; Zhaoxiang Zhang; Yiding Wang | |
2010-08-23 | |
会议名称 | International Conference on Pattern Recognition |
会议录名称 | ICPR 2010 |
会议日期 | 23-26 August 2010 |
会议地点 | Istanbul, Turkey |
摘要 | This paper proposes a novel robust watermarking scheme to embed fingerprint minutiae into face images for multimodal biometric authentication. First, a block pyramid is layered according to the block-wise face region distinctiveness estimated by Adaboost; upper level indicates informative spacial regions. Then, we adopt a first-order statics QIM method to perform watermark embedding in each pyramid level. Numeric watermark bits with higher priority are embedded into upper pyramid level with a larger embedding strength. By joint differentiation of host image regions and watermark bits priority, our scheme achieves a trade-offs among watermarking robustness, capacity and fidelity. Experimental results demonstrate that our approach guarantees the robustness of hidden biometric data, while preserving the distinctiveness of host biometric images. |
关键词 | Quantization Index Modulation Multimodal Biometric Authentication Digital Watermarking |
文献类型 | 会议论文 |
条目标识符 | http://ir.ia.ac.cn/handle/173211/13302 |
专题 | 模式识别实验室 |
通讯作者 | Zhaoxiang Zhang |
推荐引用方式 GB/T 7714 | Bin Ma,ChunLei Li,Yunhong Wang,et al. Block Pyramid Based Adaptive Quantization Watermarking for Multimodal Biometric Authentication[C],2010. |
条目包含的文件 | 条目无相关文件。 |
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