Block Pyramid Based Adaptive Quantization Watermarking for Multimodal Biometric Authentication

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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	智能感知与计算研究中心
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.