查询词典 transform

A new method of coordinate transform based on recursion was proposed,and was compared with the traditional and iterated method of coordinate transform.

提出了一种递推的坐标转换方法，并与传统的坐标转换方法和基于迭代的坐标转换方法进行了比较。

Remote sensing image was decompressed into frequency domain image by wavelet transform and the bit planes in frequency domain image were permuted by SBI transform seperately. The resulting data was compressed by arithmetic encoder.

采用小波变换对遥感图像进行分解，将生成的频域数据按不同比特平面分别进行SBI变换并用算术编码进行压缩。

The basic theory of remote watching system for an unmanned substation is introduced. The necessity of image compaction in dada transmission, the theory of 2?dimension wavelet transform, and Mallat algorithm are also explained. Based on that, the method for reconstituting the site image with the original picture and the effective area,which is compacted by the wavelet transform and transmitted to dispatch center, is analyzed.

介绍了无人值守变电站遥视系统的基本组成原理，阐明了压缩传输图像的必要性，论述了二维小波变换的原理与Mallat算法，在此基础上，着重分析了利用二维小波变换压缩传递图像的有效区域并传至调度中心与底图重构出现场实况的方法。

In comparison with the drawbacks related to the Fourier Transform and Smoothed Instantaneous Wave Energy History(SIWEH, the Wavelet Transform will be show to be much better suited for analyzing wave shoaling In which signal is believed to be non-stationary and wide band.

在使用小波转换作为分析波浪工具之前，我们选择 Morlet wavelet、Paul wavelet与Gaussian三种型态之小波函数进行讨论，最终考虑视窗面积之大小、复数型态之小波函数及频率视窗的集中度，而以 Morlet wavelet较适合分析波浪。

This article attempts to attain the research goal that is identifying the ecotypes of wet lands located at the source of Yellow River on the basis of the operation of slicing which was imposed on NDVI ,TM4 and the wetness component derived from the Tasseled cap transform and the operation of classification which was implemented based on the characteristic images coming from LBV transform.

本文尝试基于NDVI，TM4，缨帽变换湿度分量进行密度分割和基于LBV变换图像进行分类的方法达到识别黄河河源湿地生态类型的研究目标。

For the process of preparation of lanolin acid from the calcium soap, transform reaction of the calcium soap and extraction of lanolin acid carried simultaneously through, then that the reation velocity was improved and the transform degree and production quality were increased.

对羊毛酸钙转化制取羊毛酸过程，采用了羊毛酸钙转化反应与羊毛酸的萃取过程同时进行的方案，不仅提高了反应速度，同时也提高了羊毛酸的转化率和产品质量。

If the Laplace transform of an infinite series were equal to the sum of its term-by-term Laplace transform then the Borel sum would be equal to the usual sum.

如果无限系列的 Laplace 转换然后等于其逐条款的 Laplace 转换的总和 Borel 总和会等于通常总和。

Then based on CWMS, we propose a new method to enhance the resolution of seismic traces. Firstly, we divide the seismic signal into proper segments by Gabor molecule-windows adaptive to the signal, where each segment is regarded stationary, and then transform it into the Gabor domain. Secondly, we deal with the amplitude spectrum for each segment to expand the frequency band of the spectrum in the Gabor domain. Finally, taking inverse Gabor transform on modified time-frequency coefficients, we get the high-resolution signal.

然后基于变子波模型，提出了一种新的提高地震记录分辨率的方法：第一步，用自适应于地震记录的Gabor分子窗把地震记录恰当地划分成若干片断，每段内信号近似平稳，然后将地震记录变换到时间-频率域；第二步，在变换域对每个分子窗内信号的振幅谱进行处理以拓宽频带；最后把处理后的时间-频率域函数反变换回时间域得到提高分辨率后的结果。

The adaptive filter approach, the Park transform approach,the Hilbert transform approach and the instantaneous power approach are usually utilized to detect the rotor bar breaking fault on-1ine.

针对异步电动机轴承故障，本文就基于振动信号分析和定子电流信号分析的轴承故障检测方法分别进行了讨论。

To detect the position of crop-rows, a method based on Hough transform and connected component labeling was put forward. First, a true color image of field crops was processed with gray histogram and OSTU respectively. Then the noises in the image were eliminated by means of eight connected component labeling according to their areas. The centroid coordinates of each labeled crop were computed after the second labeling, through which the center line of the crop-row was regressed by Hough transform. Experimental results show that the method is effective.

该方法分别用直方图法和最大类间方差法二值化图像后，经过8连通区域标记后据其面积属性去除噪声，然后再经一次标记后找出各标记作物的重心点坐标，最后通过Hough变换检测过重心点的直线，即到得到过作物行的中心线，试验结果表明了该方法的有效性。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。