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Detection and robustness of digital image watermarking signals: A communication theory approach.

机译：数字图像水印信号的检测和鲁棒性：一种通信理论方法。

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摘要

The detection and robustness of the watermark signal is studied from a communications point of view. The contributions of this dissertation are presented in two parts. The first part, which covers the detection aspect, introduces a new digital image watermarking approach that embeds meaningful information in a copyright protection watermark signal; demonstrates the need to approach the watermark signal as a power-constrained signal; studies the relationship between the watermark signal dimension and the image capacity to the signal; explains the similarities and differences between detecting the watermark signal and detecting a signal over a spread-spectrum communication channel; and analyzes the application of sequence detection techniques (MAPSD and MLSD) to the watermark signal. The second part, which covers the robustness aspect, introduces a novel multidimensional interleaving algorithm that increases the signal's robustness against burst errors; presents, analyzes, and compares two techniques for implementing the algorithm (a sliding window technique and a successive partitioning technique); and demonstrates the increase in watermark signal robustness as a result of applying this multidimensional interleaving. This increase of the signal's robustness is shown in the 2-D case by applying the 2-D version of the interleaving algorithm to watermark signals embedded in still images (where the signal layout is in 2-D), and in the 3-D case by applying the 3-D version of the interleaving algorithm to watermark signals embedded in video sequences (where the signal layout is in 3-D).
机译：从通信的角度研究了水印信号的检测和鲁棒性。全文分为两部分。第一部分涵盖了检测方面，介绍了一种新的数字图像水印方法，该方法将有意义的信息嵌入版权保护水印信号中。证明有必要将水印信号作为功率受限信号；研究水印信号尺寸与信号图像容量之间的关系；解释了检测水印信号和检测扩频通信信道上的信号之间的异同。并分析了序列检测技术（MAPSD和MLSD）在水印信号上的应用。第二部分涵盖了鲁棒性方面，介绍了一种新颖的多维交织算法，可以提高信号对突发错误的鲁棒性。提出，分析和比较用于实现该算法的两种技术（滑动窗口技术和连续分区技术）；并证明了应用此多维交织后水印信号鲁棒性的提高。通过将2-D版本的交织算法应用于嵌入在静止图像（其中信号布局为2-D）和3-D中的水印信号，在2-D情况下显示了信号鲁棒性的这种提高。通过将3-D版本的交织算法应用于视频序列中嵌入的水印信号（信号布局为3-D）来解决这种情况。

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