查询词典 convolution equation

The multiples will be predicted with the spatial convolution between the original record and the initially estimated value of primary reflection or the seismic record itself. The multiples were scaled using the inverse of the surface operator obtained from the inversion by using the least - squares criterion.

首先通过原始记录与一次波的初始估计值的空间褶积预测多次波，再用最小能量准则反演求得的表层算子的逆来标定多次波，最后从原始记录中将多次波消除。

Another drawback of these techniques is that they need numerical pre-processing like inverse fourier transformation or convolution to compute the field induced time-domain sources.

这些技术的另外一个不利点是他们数字的预先处理相似的倒转 fourier 变形或回旋计算领域感应时间-领域来源。

We can obtain the n-dimensional inversion reconstruction formula of the image convolution-back projection by one-dimensional wavelet transform on Radon transform.

在医学上，问题的一种重要方式是从多个X射线投影值获得人体内部的密度分布，这个过程被称为计算机断层扫描。

But Janus is rather absent-minded, and he, being lost in thoughts about his convolution problem, forgot about the weak fuse next day.

但是Janus是相当丢三落四的，并且他，丢失在关于他的卷积问题的想法，次日忘掉了微弱的保险丝。

To enhance computation efficiency and coverage of streamlines of fast line integral convolution, an improved algorithm of fast LIC with Sobol sequence was presented.

为提高快速线积分卷积法的计算效率和流线的覆盖率，提出了一种改进的基于Sobol序列的快速线积分卷积法。

This paper proposes an extension to the existing automatic pencil drawing generation technique based on Line Integral Convolution.

提出了一种新的基于线性卷积积分自动铅笔画生成方法。

Aimed at the needs of virtualized relationship in virtual environment, we introduce non-photorealistic rendering into virtual reality and presented a novel algorithm for virtualized relationship generation in image based virtual environment based on line integral convolution.

针对基于图像的虚拟场景虚化关联的需要，将非真实感绘制技术引入虚拟场景中，提出了一种基于线积分卷积的场景虚化关联生成方法。

Firstly,the color image is sharpen by Unsharp Mask to extract detail information,and color scaling is used to strength contrast degree.Secondly,stroke direction is generated by the method of vector field.Finally results of the pencil-drawing are gained by the line integral convolution algorithm.

首先对用户输入的图像进行Unsharp Mask锐化提取细节信息，并进行颜色放大处理以增强对比度，然后采用基于点的向量场技术生成笔画方向，最后应用线积分卷积得到具有素描风格的结果图像。

In order to create a virtual flow analysis system, three algorithms (Marching Cube, LIC——Line Integral Convolution,and IBFV—— Image Based Flow Visualization ) were improved in their real time, objective and realistic aspect.

首先研究了CFD计算所必须的、也是耗费人工最多的网格生成技术，及其与CAD系统的集成。

The lorentzian spectrum line resolution enhancement is analysed and simulated by computer with the convolution difference method.

用数字加权处理来提高谱分辨率的方法已得到广泛应用，新的加权方法还在不断出现。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。