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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。

Eikon {i-kone'} from 1503; TDNT - 2:381,203; n f AV - image 23; 23 1 an image, figure, likeness 1a an image of the things 1a1 used of the moral likeness of renewed men to God 1a2 the image of the Son of God, into which true Christians are transformed, is likeness not only to the heavenly body, but also to the most holy and blessed state of mind, which Christ possesses 1b the image of one 1b1 one in whom the likeness of any one is seen 1b2 applied to man on account of his power of command 1b3 to Christ on account of his divine nature and absolute moral excellence

相关经文回前一页 1504 eikon {i-kone'}源於 1503； TDNT - 2：381，203；阴性名词 AV - image 23； 23 1 像，外形，外表 1a 事物的形像 1a1 用以指新造的人在德行上和神的相似 1a2 神子的形象，指真基督徒所被改造成的样子，不只是和天国中的灵物相似，共且是达到一种心智上的绝对圣洁，就像是基督的样子 1b 一个人的外貌，形象 1b1 指和所见过的某人很像 1b2 用於指有指挥权柄，有地位的人 1b3 用以指基督基洁的本质和至高的德行

"Five-line", that is strongly pushing forward the development of Jinzhou Bay and establish a new image of an open Jinzhou; strongly promote the county's economic development, and foster coordination of a new image-based Jinzhou; strongly push forward the expansion of urban South, establish urban jinzhou a new image; strongly promoting the people's livelihood projects, establish a new image of harmony-based Jinzhou; strong new pillar industries to promote the cultivation and growth, and foster innovative new image of Jinzhou.

&五线&，就是强力推进锦州湾开发，树立开放型锦州新形象；强力推进县域经济发展，树立协调型锦州新形象；强力推进城市南扩，树立都市型锦州新形象；强力推进民生工程，树立和谐型锦州新形象；强力推进新兴支柱产业的培育与壮大，树立创新型锦州新形象。

This paper is maining on the composing system of rural landscape image planning, that is the establishment of country carrier exhibiting system-rural settlements image, rural architecture image, rural environment image and their renovation and reconstruction; and the refiguring means of country landscape image- reconstruction, recombination and creation of ideal environmental feeling.

本文探索的重点内容在于乡村景观意象规划的组成系统，即乡村载体展现体系的建构——乡村聚落意象、乡土建筑意象、乡村环境意象及其有机更新与改造；以及乡村景观意象再塑造手段——乡村景观意象重构、乡村景观意象整合、乡村景观意象造境。

As very large collections of images are becoming common, there is a growing interest in image database that can be quired based on image content. Content-Based Image Retrieval has become an important research issue aiming at providing effective means for image retrieval on large image databases.

随着图象数据的大量涌现，基于内容的图象检索技术已成为研究热点，其目的是为了对大容量图象库提供有效的检索手段。

Removing different kinds of impulsive noise in image is systematically researched, and proposes three image removing noise filter based on fuzzy information processing technique, i e., fuzzy entropy-based filter for removing noise in multilevel image, histogram-based filter for removing salt and pepper noise in image, and histogram- based adaptive filter for removing image impulsive noise.

该章对图像中不同类型加性脉冲噪声的去噪问题进行了系统地研究和分析，提出了三种基于模糊信息处理的图像平滑去噪滤波器，分别为基于模糊熵的多值图像去噪滤波器、基于直方图的图像椒盐噪声滤波器、基于直方图和区域信息的自适应图像脉冲噪声滤波器。

By applying machine vision and digital image processing technology to fabric defect detection ,this paper puts forward a new method of detection of fabric defect,namely image distance difference arithmetic,which includes image collection,image precess and defect detection.

将机器视觉与数字图像处理技术引入到织物疵点检测中，提出了一种织物疵点检测算法———图像距离差算法，即图像采集、图像处理、疵点识别等。

In this article, an automatic elliptic pore size measuring system is developed based on digital image processing techniques, in which, CCD camera grabs the microscopic image of to-be-measured end surface, video image grabber digitizes it and computer processes it by way of digital image processing and gives the result.

本文研制了基于数字图像处理的椭圆型孔径自动检测系统，它由CCD摄像机采集被测端面的显微图像，视频图像采集板将其数字化，计算机利用数字图像处理技术进行处理给出结果。

In this paper, three types of image data base is proposed, that is, attribute-oriented, feature-oriented and knowledge-oriented; the public fundamental structure of image data base system in each field is implemented, the improved expression of image geometrical feature is given, the strong command language and necessary auxiliary means to manage image data base are designed.

文中提出了图象数据库的3种类型，即面向属性型、面向特征型和面向知识型；实现了各领域上的图象数据库系统共有的基本结构；给出了一种改进的用于表示图象几何特征的方法；设计了一种具有较强功能的命令语言和管理图象数据库所必要的辅助手段。

Image mining is the important branch of data mining.It is more than just an extension of data mining to image domain but an interdisciplinary endeavor.Image clustering and similarity retrieval are two basilic parts of image mining.

图像挖掘是数据挖掘的重要分支，它不仅仅是数据挖掘简单的扩展到图像领域，而是一个多学科交叉的研究方向周像的聚类和相似性搜索是图像挖掘的两个非常重要的领域。

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。