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【期刊论文】RESEARCH ON MICROWAVE HUMIDITY TESTING OF CERAMIC PRODUCTS
刘泉, LIU Quan ZHOU Jian
Journal of Wuhan University of Technology, June, 2000, Vol. 15, No.2,-0001,():
-1年11月30日
This paper analyses the principle of microwuve humidity testing. According to the problems in the production procedure of ceramic products. A microware humidity testing system is designed and analyzed for its advantages. Furthermore, the system has been applied to the production line that produces ceramic p0roducts and the testing reaults are also satis fying.
ceramic products, microwave humidty testing, spacial wave testing method
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刘泉, 余娜敏
武汉理工大学学报,2003,25(7):71~74,-0001,():
-1年11月30日
基于扩频技术研究了数字图像水印的相关特性, 采用直接序列扩频技术对水印信号进行频谱扩展, 然后通过基于空间视觉掩盖的可感知噪声阈值矩阵JND 门限决定水印强度和嵌入位置, 实现了空域中图像自适应的水印算法。实验证明数字水印保证了人眼视觉不可察觉性, 并且对包括JPEG 压缩、均值滤波、亚抽样等具有很强的稳健性。
数字水印, 扩频技术, 人类视觉系统
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