Optical watermarking robust to object with low-reflectance
Optical watermarking robust to object with low-reflectance
复制标题
对低反射率物体具有鲁棒性的光学水印
DOI：
10.1109/icme.2009.5202861
复制
发表时间：
2009
期刊：
影响因子：
--
通讯作者：
K. Yanaka
中科院分区：
文献类型：
--
作者：
K. Uehira;Y. Ishikawa;K. Yanaka
我们提出了一种新的光写水印技术，可以防止非法使用的对象，不能包含水印，如绘画的图像。新方法涉及整个区域的DCT和iDCT以增加鲁棒性，即使由于例如对象表面的低反射率而丢失了信息的某些部分，也能够准确地读出来自水印的嵌入信息。我们进行了模拟和实验，其中一位二进制数据被嵌入在高频区域的几十个组件。实验结果表明，即使物体表面有40%是黑暗的，嵌入式数据也可以100%非常准确地读出。因此，我们证明了我们提出的技术的可行性是实用的。
We propose a new optically written watermarking technology that can prevent the illegal use of images of objects that cannot contain watermarking such as paintings. The new method involves DCT and iDCT of the whole area to increase robustness that enables the embedded information from watermarking to be accurately read out even when some parts of the information have been lost because of, for example, low reflectance from the object's surface. We conducted simulations and experiments where one-bit binary data were embedded in some tens of components in a high-frequency area. The experimental results revealed that embedded data could be read out extremely accurately at 100% even when up to 40% of the object's surface was dark. As a result, we demonstrated the feasibility of the technology we propose is practical.