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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
专题类脑智能研究中心
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.
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