Noise filtering is a necessary step on image pre-processing stage in digital image processing.
在图像处理领域中噪声滤除是图像预处理阶段一项必不可少的工作。
The principle framework of driver forewarning system is introduced firstly. then two sections of pre-processing namely the filtering and making thinner are discussed.
该文首先介绍了驾驶员预警系统的原理结构，然后讨论了驾驶员预警系统中人脸图像识别预处理的滤波和细化两个环节。
Firstly the data pre-processing technologies are researched, which include coordinate transform, coordinate fusion, data filtering.
本文首先研究了坐标变换、坐标归一化和数据滤波的数据预处理技术。
This method includes the following steps: pre-processing, noise filtering, sentences weighting and summary generation.
该方法包括预处理、噪声过滤、句子权值计算和文摘生成等步骤。
The advantage and disadvantage of the method of azimuth pre-filtering and undersampling and the method of subaperture processing are compared.
比较了方位向预滤波降采样方法与子孔径处理方法各自的优缺点。
This method contains steps as follows: pre-processing raw material, adding extracting agent which contains ionic liquid, centrifuging, filtering, purifying and condensing the extracting liquid.
该方法包括下列步骤：原料预处理，加入含离子液体的萃取剂，萃取液离心、过滤、纯化、浓缩即可。
In the image pre-processing, we produces an improved multi-weighted filter algorithm which has a better denoising result with a variety of filtering algorithms.
在图像预处理中，针对图像采集过程中产生的噪声问题，结合多种中值滤波算法，得出一种改进的多级加权滤波算法。
The research of the character image pre-processing focuses on the gray-scale image filtering algorithm, the skew detection of image and character segmentation algorithm;
在字符图像预处理方面，重点研究了灰度图像滤波算法、图像的倾斜检测和字符分割算法；
The research of the character image pre-processing focuses on the gray-scale image filtering algorithm, the skew detection of image and character segmentation algorithm;
在字符图像预处理方面，重点研究了灰度图像滤波算法、图像的倾斜检测和字符分割算法；
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