Reversible Image Authentication Based on Difference Expansion and Error Correction Code 基于差值扩展和纠错编码的可逆图像认证
This paper proposed a reversible data hiding algorithm for color images based on prediction error difference expansion and Least Significant Bit ( LSB) replacement. 将差值扩展技术应用于彩色图像,提出一种基于预测误差差值扩展和最低有效位(LSB)替换的彩色图像可逆数据隐藏算法。
During combine environmental reliability test, the sensitivity of the acceleration transducer will produce certain and reversible change with the test temperature change, and the change will lead to the system error of the vibration control system. 在综合环境可靠性试验中,加速度传感器的灵敏度会随不同的试验温度产生确定的、可逆的变化,而灵敏度的变化会导致振动控制系统产生系统误差。
The author has studied current several methods of mesh simplification and put forward a reversible progressive mesh based on LOD model through using the mesh simplification method which joined edge collapse and quadric error metrics. 本文研究了目前各种网格模型简化的方法,利用了基于边折叠和二次误差度量相结合的网格简化方法,提出了一种基于LOD可逆的累积网格。