1) extended difference function
扩展差值函数
2) difference expansion
差值扩展
1.
Lossless audio data hiding algorithm based on difference expansion;
基于差值扩展的音频无损信息隐藏算法
2.
New reversible data hiding algorithm using difference expansion embedding;
利用差值扩展进行可逆数据隐藏的新算法
3.
In this scheme, authentication data is encoded using error correction code to prevent them from malicious manipulation and difference expansion is exploited to conceal the encoded data into image.
针对一些敏感数字图像在认证水印嵌入过程中不能引入失真的问题,提出一种能够定位图像篡改块的可逆图像认证方案,利用纠错编码使认证数据能抵抗可能受到的篡改攻击,并用差值扩展的方式将编码后的认证数据嵌入到图像中。
3) spreading function
扩展函数
1.
Rebollo Neira discussed the reconstruction problem of wideband spreading function under the frame condition.
Rebollo-Neira讨论了框架条件下的宽带扩展函数重构问题。
4) point-spread function
点扩展函数
1.
A restoration algorithm based on the mathematical models of point-spread function was proposed and a Wiener filter algorithm avoiding the.
并通过建立相应的数学模型推导了系统的点扩展函数 。
2.
Through analyzing the degraded image model and related point-spread functions, they show that Parzen-window function has some characteristics which are similar to point-spread function.
通过对降质图像离散退化模型与Parzen窗估计法基本公式的对比和对几种退化模型的点扩展函数特点的分析 ,揭示了点扩展函数与Parzen窗函数之间的对应关系 。
3.
There exist three sampling methods according to the sampling objects: the transfer function sampling,the point-spread function sampling and the weighting function sampling.
理论分析表明,按照抽样对象的不同,存在三种适用范围不同的算法:传递函数抽样法、点扩展函数抽样法和加权函数抽样法。
5) Point spread function
点扩展函数
1.
Research of X-ray imaging system point spread function in theory and experiment;
X射线成像系统点扩展函数理论模型及其实验验证
2.
Point spread function of neutron pinhole imaging in high gamma ray background;
强γ背景下中子针孔成像的点扩展函数
3.
Research on estimation algorithms for Gaussian point spread function parameter in image restoration;
图像复原中高斯点扩展函数参数估计算法研究
补充资料：点扩展函数
见光学传递函数。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条