Title :
Performance analysis of multiplicative distortion-compensated quantized projection
Author_Institution :
Coll. of Inf. & Electron. Eng., Zhejiang Gongshang Univ., Hangzhou, China
Abstract :
Quantization index modulation (QIM) technology was always applied to inserting watermark in an additive way formerly. In this paper, we propose the concept of multiplicative distortion-compensated quantized projection (MDC-QP), which differs from the conventional DC-QP in working in a multiplicative way. The locally most powerful (LMP) detector is used to judge whether or not a watermark exists. Its detection performance is characterized by the probability of miss at a given probability of false alarm. Theoretical analysis agrees well with realistic experiment on detection performance.
Keywords :
distortion; modulation; probability; quantisation (signal); watermarking; MDC-QP; false alarm; locally most powerful detector; multiplicative distortion-compensated quantized projection; probability; quantization index modulation; realistic experiment; watermark insertion; Additives; Approximation methods; Indexes; Modeling; Modulation; Quantization; Watermarking; Locally most powerful (LMP) detector; multiplicative distortion-compensated quantized projection (MDC-QP);
Conference_Titel :
Computer Application and System Modeling (ICCASM), 2010 International Conference on
Conference_Location :
Taiyuan
Print_ISBN :
978-1-4244-7235-2
Electronic_ISBN :
978-1-4244-7237-6
DOI :
10.1109/ICCASM.2010.5623183
