查询词典 fast algorithm

The fast Fourier transform technology is adopted to calculate the dyadic Green's operator and its adjoint operator during each iteration of CSI, which ensures the high efficiency of the algorithm in stratified medium.

CSI的每一次迭代过程均采用快速Fourier变换技术计算并矢Green函数算子及其共扼算子，确保了该算法在三维层状介质情况下的高效率。

In order to overcome the disadvantages of large computation and poor matching efficiency in image stitching, a fast image stitching algorithm based on simple affine transformation was proposed.

针对自动光学检测在电路板元器件检测中对图像拼接的实时性要求比较高的特点，提出了简化的仿射变换模型的快速图像拼接算法。

The algorithm had the feature of fast convergence and so it was a good approximator.

本算法具有快速收敛性，是一个良好的逼近器。

Simple, fast and adaptive spatial filtering and arithmetic operation are adopted by the algorithm and image quality is improved.

该算法采用了简单快速的自适应空间域滤波和代数运算，提高了图像质量。

It is also fast and exact to reconstruct the 3D shape of object by triangulating the 3D data points. The study in this thesis is about the algorithm of obtaining 3D data on the basis of range image obtained by structure light and the algorithm of object reconstruction.

利用结构光可以简单、快速并且精确地对被测物体进行三维测量，对获取的三维数据点集进行三角剖分，可以快速准确地重建被测物体的三维形状。

This paper provides a fast defect detecting algorithm for the seal of cigarette case. This image processing algorithm can be used on DSP platforms.

本文提出并实现了一种能够运行在DSP 嵌入式系统的针对软包装香烟盒上封条的缺陷识别快速算法。

On the basement of conventional direct fan-beam reconstruction, this paper gives a newly improved algorithm-"fast filtering-backprojection". This method utilizes the symmetrical circle geometry to sample projection data, and reconstructs image on the Polarcoordinate firstly, then translates this reconstructed image onto the cartesian coordinate system with two interpolating operations so that the computer can show the result image on the VGA screen. This algorithm rebates the calculating backprojection greatly, and shortens a few times of reconstructing time than same kinds of means. With the size of image enlarging, the reconstructing time abates with 2 exponent times. In addition, according to the idea of parallel-beam, we rearrange the fan-beams and reconstruct image using parallel-beam method fastly. The rearranging constraint condition is given here.

本文首先在传统的扇束直接重建方法的基础上，提出了一个改进的快速滤波反投影重建算法，它利用旋转采集投影数据的圆周对称的几何关系，先在极坐标系统内进行图象的重建，然后通过两次内插运算再将图象转换到计算机显示方式下的笛卡尔坐标系中去，该方法将以往的直接重建方法中的反投影时所需的运算大大降低，并将重建时间比同类方法缩短了几倍，而且随着重建图象的尺寸的增大，重建时间以2的指数次方倍相对缩短，并获得了较好质量的重建图象；另外，又根据平行束投影重建图象的思想，对扇形射束进行了重排，然后利用平行束重建图象的方法进行扇束的重建，并推导了&扇束重排重建图象&方法的约束条件。

And then, combing a proposed feature data preprocessing mechanism and the multiple classifiers fusion, an ultrasound uterus image recognition framework is proposed.4, A fast and automatic ultrasound uterus image recognition algorithm for the intra-uterine device is proposed and realized. The algorithm is composed of automatic ultrasound uterus image segmentation and the specific recognition framework, which are connected by object of interest.

随后结合特征降维进一步提出了一种特征数据预处理机制，并在此基础上结合多分类器融合提出了一种超声子宫图像识别框架。4、设计并实现了一种快速全自动的超声子宫图像节育环物体识别及定位算法，其包括全自动超声子宫图像分割和特定模式识别框架两大部分，通过感兴趣物体(Obiect of interest，OOI)进行连接。

The study found that free-stage has no effect on performance, to be end as soon as possible; the pressure and oil-filling time in oil-filled stage are the key, which directly determines the speediness of the starting; slipping-stage decides the comfort of the starting, and the friction coefficient is important for this stage, synchronous engaging-stage don't product slipping loss, and don't impact the jerk of the vehicle, needing to be finished fast. According to control object and evaluate guidelines, the fuzzy control algorithm is developed and different experiments verify the correction of algorithm.5 With the debug of CVT control software, the experiment is finished in two years which includes test bench experiment, 60℃high temperature test in Tulufan of Sinkiang province, 4647 meters high altitude test at Kunlun mountains, as well as the minimum temperature of -32℃test at Heihe.

根据控制目标及评价指标，开发了湿式离合器接合过程模糊控制算法，各类试验证实了算法的有效性。5湿式离合器的起步试验伴随CVT控制软件的调试，历时二年，经过台架试验，新疆吐鲁番环境温度高达60℃的高温标定试验，昆仑山口海拔高度4647米的高原标定试验，以及黑河最低温度为-32℃严寒标定试验，所取得的研究成果对离合器软件开发和标定流程具有很好的借鉴意义和工程应用价值。6自动变速器起步离合器的标定是软件产品开发的核心技术。

The engine monitor requires accurate predictions of rational velocities. A prediction model is constructed on the basis of flat neural network A fast recursive algorithm is used to improve the learning speed by forgetting factor. Accordingly, the present neural network algorithm leads to considerable reduction of effort in network weighting matrix as well as increase of self-learning and adaptability of neural network algorithms to nonlinear and nonstationary systems.

发动机监测器以精确的转速预测为前提，通过构建扁平化神经网络预测模型，并根据遗忘因子思想改进快速递推算法，既减少网络权矩阵的计算量，又充分发挥神经网络算法对非线性和非平稳系统的自学习能力。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。