symmetric periodic extension 对称周期延拓
anti-periodic extension method 反周期扩展法
anti periodic extension method 反周期扩展法
Anti-symmetric periodic extension 反对称周期延拓方法
First of all, one-dimensional wavelet transform, Multi-Resolution Analysis and Mallat algorithm are briefly introduced, and then the boundary extension problem in Mallat algorithm’s realization is also discussed, moreover, an illustration of Mallat algorithm is given with periodic extension methods.
文中首先简要地介绍了一维小波变换、多分辨分析和Mallat算法,讨论了Mallat算法实现中的边界延拓问题,并以周期延拓方式为例给出了Mallat算法实例。
参考来源 - 提升小波二叉树编码算法研究The main research contributions and conclusions are summarized as follows. (1)obtain better reconstruct image choosing the bi-orthogonal (9,7) wavelet basis and symmetric periodic extension.
本论文的主要研究成果和结论有：(1) 对一般自然图像作小波变换时，采用(9，7)双正交小波并对图像作对称周期延拓能获得较好的重构质量。
参考来源 - 基于小波零树的嵌入式图像编码技术的研究与改进·2,447,543篇论文数据，部分数据来源于NoteExpress
Therefore, full-sampled symmetric periodic extension method is adopted here in order to alleviate boundary effect.
为此采用全样本对称周期延拓的方法进行边界延拓。
As the extension of the optimal loading problem, periodic task scheduling of TTCAN has many important applications in real-time distributed systems that are communication time critical.
TT CAN周期性任务调度是最优装载问题的推广，它在通信时间关键的实时分布式系统中有着很强的应用背景。
Based on the fixed point theorem of two-point extension type, sufficient conditions are derived for the existence of positive periodic solutions of delay difference equations.
利用两点拉伸型不动点定理给出一阶时滞差分方程周期解存在性的充分条件。
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