The paper introduces the process of voice pattern recognition, including the method for pre-processing, extraction of feature and classification of pattern.

该文主要介绍了在声音模式识别的一般过程，其中包括声信号预处理、特征提取、模式分类过程的方法。

youdao

In this thesis, we study on text detection. It includes five parts: pre-process, multi-scale analysis, feature extraction, classification and text area extraction.

本文针对文本区域提取这个问题来进行研究，包含预处理、多分辨分析、特征提取、分类(检测)、区域提取五个步骤来解决文本区域的准确提取问题。

youdao

In order to improve the accuracy rate of recognition of handwritten number, the researchers have done a lot of work at the pre-processing stage, feature extraction and classification stage.

为了提高手写数字的识别率，研究者在预处理阶段、特征提取和分类识别阶段都提出了很多方法。

youdao