查询词典 matrix transform

The blind digital watermarking algorithm based on Fresnel diffraction transform, phase encryption mask and discrete wavelet transform is proposed.

基于菲涅耳衍射变换和相位密码板，结合离散小波变换，设计了一种新的盲数字水印算法。

Since CGH is not real-time available,many scholars are studying the real-time applications of CGH with modern display devices, such as liquid crystal display, The applications include, real-time pattern recognition using liquid crystal display based joint transform correlator, CGH interferometric technology for anti-counterfeiting, and real-time application of Furrier transform CGH.

但由于存在不能实时实现的弱点，许多学者用现代显示器件进行了计算全息实时应用研究，如：光学联合变换滤波器图像识别技术，实时计算全息干涉防伪技术，傅里叶变换实时全息图应用。

All the algorithms referred hereinbefore are implemented through experiments and compared with traditional separable wavelet transform to demonstrate the effectiveness and superiority of contourlet transform for image processing.

以上算法都通过实验与传统可分小波变换的图像处理结果作对比以证实Contourlet变换在图像处理中的有效性和优越性。

A filter of capillary electrophoresis signals with online wavelet transform was developed. The online wavelet transform with fixed time window was used and how to select the hest length of time window was discussed.

将在线小波变换用于毛细管电泳信号的滤噪处理，满足了毛细管电泳信号采集过程中实时处理和监控的需求。

On the basis of the definition of the extraordinary Radon transform, the theory of rebuilding image from extraordinary Radon transform result is proposed, and some category such as image structure notation, topology of image structure notation and topological space, homeomorphism in topological space, equivalence of homeomorphism relation, topological constant of image structure notation.

与现有的基于区域内部或外形变换的形状分析方法相比，在理论方法上本质不同的是，本文提出的广义Radon变换，直接将原始的图象数据影射到特征空间，给出图象构图特征的描述，给出了可以用来进行图象检索或图象识别的结构特征谱。

The commonly used real time detecting theory of instaneous reactive and harmonic current based on vector transform has the shortcomings of complexity of vector transform and illegibility of physics meanings.

针对建立在瞬时无功功率理论的基础上的瞬时无功和谐波电流检测算法存在的矢量变换复杂，物理意义不明确的缺陷。

In the data acquisition system, CD4051 and AD574- the A/D transform, are used as hard core to receive the signal from the infra-red ray temperature sensor; the data acquisition depend on CPU; in the keyboard/ display system, a 74LS48 as the driver to drive LED works; in the warning circuit, I used two color LED and a buzzer as one unit to work; DAC0832 converter is the center of the D/A transform; execution unit, I used DDZIII type electromotive unit; the auto-man, it is a disabling of the other control circuit, this can secure production all the time.

在数据采集部分，以多路开关CD4051和AD574模/数转换器为核心接收来自红外线传感器的信号；数据处理依赖CPU；键盘/显示部分，以74LS48驱动LED数码管工作；报警单元，采用了双色LED加蜂鸣器的组合；D/A转换采用了DAC0832转换器；执行器采用DDZIII型电动执行器；手/自动切换装置则屏蔽了之前的电器部分，安全可靠。

Combining with discrete wavelet transform, the integral wavelet transform has been realized on hardware system, and the experimental results are satisfying.

同时结合离散整数小波变换算法，在硬件系统上实现了整数小波变换，取得了较好的试验效果。

The fundamental solutions are obtained by Hankel integral transform and numerical inverse transform.

采用Hankel变换及数值逆变换得到饱和土的基本解。

The digital algorithms of integral and discrete wavelet transform are presented for purpose of electric power system protection, based on the analysis of wavelet transform for sampled digital signals under the Shannon sampling theorem.

从电力系统继电保护应用的角度，结合香农采样定理，深入探讨了连续信号和离散信号的小波变换的关系，给出了离散信号的积分小波变换和离散小波变换的数字计算方法。从理论上研究了信号小波变换的误差与尺度函数和小波函数的关系。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。