光电工程, 2018, 45 (12): 180054, 网络出版: 2018-12-18  

基于左右视点相关性的立体图像鲁棒水印方法

Robust stereo images watermarking based on correlations of left and right views
作者单位
1 宁波大学信息科学与工程学院,浙江 宁波 315211
2 宁波大学科学技术学院,浙江 宁波 315212
3 浙江科技学院信息与电子工程学院,浙江 杭州 310023
摘要
针对立体图像版权保护问题,提出了一种基于左右视点相关性的立体图像鲁棒水印方法。由于张量分解能够较好保存图像的主要能量,因此,首先利用彩色视点中RGB 三通道之间的相关性,对左右视点分别进行张量分解。每一个视点分解出三个特征图,其中每个视点的第一特征图保留了每个视点中较强的三通道关系。其次,结合左右视点之间的相关性,联合左右视点的第一特征图进行张量分解,得到立体图像的主要能量特征图。最后,将主要能量特征图进行奇异值分解,并嵌入水印从而提高鲁棒性。实验结果表明,该方法具有较高的鲁棒性和不可见性,并且实现了水印的盲提取。
Abstract
To solve the copyright protection of stereo images, a robust stereo image watermarking method based on correlations of left and right views is proposed. Because the tucker decomposition can preserve the main energy of the image well, tucker decomposition is performed on left and right views, respectively, to make full use of the correlations of three channels in the color view. Each view is decomposed into three feature images, where the first feature map retains relationships of three channels in each view. Secondly, considering correlations between the left and right views, the first feature images of the left and right viewpoints are combined to be performed by using tucker decomposition, and the main energy features images of the stereo image are obtained. Finally, the main energy feature image is decomposed by singular value decomposition, and watermark is embedded for the purpose of improving the robustness. Experimental results show that the proposed method has high robustness and invisibility, and realizes blind extraction of watermark.

张芳燕, 骆挺, 蒋刚毅, 徐海勇, 周武杰. 基于左右视点相关性的立体图像鲁棒水印方法[J]. 光电工程, 2018, 45(12): 180054. Zhang Fangyan, Luo Ting, Jiang Gangyi, Xu Haiyong, Zhou Wujie. Robust stereo images watermarking based on correlations of left and right views[J]. Opto-Electronic Engineering, 2018, 45(12): 180054.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!