查询词典 convolution equation

multi-channel correlators are widely used in traditional pseudo-random code cw radar,which makes the ranging system more complicated.this paper proposes a method of digitalizing the return signal directly and then convoluting the signals on dsp,which can replace multi-channel correlation in analog circuit.but the computation of convolution is too huge for the dsp to fulfill.to solve this problem,this paper analyzes five fast algorithms including fft,and then chooses one according to the characters of prc-cw radars.the digital method and fast algorithm have been verified by simulated signal and real signal.

摘 要：传统的伪码调相连续波雷达采用多路模拟相关电路实现对回波信号的相关接收，通过多路试探搜索各距离单元的目标，电路复杂。提出的数字化方案，对回波信号直接数字化，利用高速dsp实现数字卷积，可替代多路模拟相关电路。但是直接卷积的运算量过大，dsp无法承受。本文对此进行了研究，分析了包括fft在内的五种快速算法，结合prc-cw雷达的具体情况，确定了一种适于dsp实现的快速卷积算法。仿真和实测数据证实了数字化方案及快速算法的正确性。

In a method and an arrangement for processing a skin print image, and particularly a fingerprint image, which image exists as a gray-level image, provision is made for the gray-level image to be convolved in the direction of two axes by generalized gradient filters, for the generalized gradients obtained in this way to be normalized, for the normalized, generalized gradients each to be convolved with generalized gradient filters, and for the sum of the two results of the convolution of the normalized, generalized gradients to be converted to binary form.

在处理皮肤印迹图像的方法和设备中，具体来说，处理指纹图像的方法和设备中，指纹图像是作为灰度级图像存在的，对于灰度级图像进行如下的规定：通过通用梯度滤波器沿两个轴的方向卷积灰度级图像，归一化以这种方式获得的通用梯度，利用通用梯度滤波器卷积每一个归一化的、通用梯度，并且转换归一化的、通用梯度的卷积的两个结果之和为二进制形式。

A generic face mesh was deformed and the texture image was computed using image-based modeling technique. The deformed mesh was then convolved with a kernel function to generate a convolution surface, and wrinkles were generated by modulating the surface with a designed profile function.

运用基于图像的建模方法将通用人脸网格变形并计算出纹理图像，变形后的网格再与一个核函数卷积生成卷积曲面，通过轮廓函数调整曲面的形状而产生皱纹。

The detection results of traditional edge detection method are fuzzing and sensitive to noise for convolution operation,and the detection results of morphological edge detection method are easy to lose edge information for various detection results.

针对传统的边缘检测方法因卷积运算造成模糊图像边缘，且对噪声敏感，各种形态学边缘检测方法因检测到的边缘信息类型不同而容易使边缘信息丢失，提出一种组合式抗噪型形态学边缘检测算子；并利用不同尺度的结构元素具有不同的图像边缘检测效果，进行形态结构元素的尺度调整，得到不同尺度结构元素下的图像边缘位置；然后进行加权合成来获得边缘图像；实验表明，与其他的传统或者形态学边缘检测方法相比，该文方法不仅具有更好的噪声抑制功能，而且其检测到的边缘轮廓更加清晰完整，边缘细节更加丰富。

Convolution can be divided into three categories: Pleated, small folds and natural fold.

他将布料折叠缝制成多种形态的线条状，外观富于立体感，给人以飘逸、自然的印象。

All impulse responses can be exported in high resolution for use in convolution reverbs.

所有脉冲响应可以出口，在高分辨率的使用在卷积混响。

08 Ns using deconvolution from the combination of the phase plane method and iterative convolution method.

通过相平面法和迭代卷积法相结合的解卷积处理，测得乙醛40％水溶液的真实荧光寿命为（7.25±0.08）ns，表明这是一种采用纳秒量级的仪器测量纳秒甚至亚纳秒荧光寿命的有效方法

PixTwix is an image processing ActiveX control featuring: advanced selection routines including irregular and non-contiguous selection regions, local and global magic wand selection, unlimited file based undo capabilities, both loss-less and lossy rotation routines, color channel manipulation functions such as mixing, adding, and multiplying, red eye effect removal by color clamping, unlimited number of user defined 3x3 convolution filters, image encryption and decryption, file checksum calculator, color count and histogram functions, blurring, sharpening, softening, edge enhancement, drop shadow, border and frame effects, range of low pass and high pass filters, logical operations on pixels, clipboard support, masking, skewing, range of color replacement functions, reversing, flipping and reflecting, blending, colorizing, tinting, grayscale conversion with user defined channel weights, texture filling, adjustment of brightness, contrast, saturation, dithered black and white images with user defined bias, embossing in different directions, antialiasing, zooming, tile, spray, mosaic and many other special effects and filters.

pixtwix是一个图像处理ActiveX控制项主题：高级遴选例程，包括非正规和非连续选择地区，当地和全球的魔术棒选择，无限的文件为基础的复原能力，无论是亏损少耗和旋转例程，颜色频道操控功能，如混合，加入，再乘以，红眼效应去除颜色夹紧，无限数量的用户定义的3x3卷积过滤器，图像加密和解密，文件的校验和计算器，彩色计数和直方图功能，模糊，锐化，软化，边缘增强，下拉阴影，边界和框架的影响，一系列的低通和高通滤波器，逻辑运算对像素，剪贴板支持，掩蔽，拉动了，各种颜色的更换功能，扭转，翻转和反映，共混， colorizing ，调色，灰阶转换与用户定义的频道权重，纹理填充，调整亮度，对比度，饱和度，抖动黑白影像与用户定义的偏见，压花，在不同的方向，抗锯齿，缩放，瓷砖，喷雾，马赛克和其他许多特殊效果和过滤器。

This program can be used to obtain the true and high-resolved spectra by means of techniques of inverse Fourier convolution and nonlinear least squares fitting.

论文工作主要由三部分组成，一是编制了用于光谱数据和光谱图象处理以及等离子体参数诊断的程序包—ESDAP，为精密实验数据分析提供了可靠手段和得力工具；二是对X射线激光增益介质的物理特性和规律进行了实验研究；三是在对X射线激光增益介质研究的基础上，依据现有的实验条件，主要通过靶设计探索了提高复合泵浦X射线激光增益的新途径。

On the basis of summarizing and discussing the gamma inversion, we point out that an analytic method of volume attribute is very important. The method integrates multiple stepwise regression and cross verification to optimize and combine the attribute, adopts the convolution factor to eliminate frequency difference between the seismic and logging data, uses the neural network as a matching and predicting tool. Because of its religious theoretic base, the method is more accurate than other ones.

在对目前常用的伽玛反演方法进行总结、讨论的基础上，指出地震体属性分析法具有明确的物理意义，有效结合了多元逐步回归和交互验证法进行属性的优选和组合，采用褶积因子消除地震信息和测井信息的频率差异，并以神经网络为拟合和预测手段，具有严谨的理论基础，相比其它几种方法更为准确合理。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。