Secondly, a 2-D Wavelet Packet best basis characteristic extraction method which is essentially different to the familiar basis matching method is described.
接着，本文论述了一种与较常出现的小波基匹配降维方法有着本质区别的二维小波包最好基特征提取方法。
参考来源 - 一种基于小波包分析和神经网络的笔迹鉴别方法At first, basic concepts in wavelet theory is expounded, focused on wavelet transform, multi-resolution analysis, Mallat algorithm and filter-banks etc. By examining the time-frequency characteristics of the wavelet basis, the rule of best basis selection is proposed.
论文首先阐述了小波理论的一些基本概念，包括小波变换、多分辨率分析、Mallat算法和等效滤波器组等，在此基础上考察了小波基的各种时频特性，提出了图像编码中最优基的选取原则。
参考来源 - 高性能图像编码研究·2,447,543篇论文数据，部分数据来源于NoteExpress
"Hope may not be the best basis for a management decision," Mr Zetsche conceded this week.
“希望并非管理策略的最佳依据，”Zetsche本周坦言。
Wavelet analysis is very preponderant in acoustic emission detection of discharge in high voltage equipment. In its application, selection of best basis is important.
小波分析在高压电器放电检测中有很大的优越性，最优小波基的选择是小波分析的应用中的重要问题。
After joint best basis selection, eigen-images are generated and applied in a volume holographic correlation recognition system to implement optical iris recognition.
生成最优基的特征图像，采用体全息相关识别系统实现虹膜的光学识别，实验取得较好的效果。
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