象的

The first part is from chapter 2 to chapter 5, which makes the research of fast rendering of 3D scene in VR. The second part is from chapter 6 to chapter 12, which researches the optimal bit allocation and arithmetic coding in wavelet image compression.

从第二章到第五章是第一部分，研究了虚拟现实系统三维场景图象的快速生成算法；从第六章到第十二章为第二部分，研究了小波图象压缩编码中的最优比特分配和算术编码。

The blind man who touched the side of the elephant said that an elephant was like a wall.

摸著象的侧面身位的盲人说：象很像一座墙。

X→Y has a closed graph are provided,and the classical closed-graph theorem is generalized.

本文给出了算子T具有闭图象的一些等价条件，并推广了经典的闭图象定理。

An eyelike principle for the imaging at monofrequency, monoincidence and small imaging angle is proposed and an interesting complementary relation between the imaging angle and operation wave length for the inverse scattering is revealed.

文中提出在单一波数，单一入射并且小成象角条件下成象的似视原理。揭示了在散射成象问题中存在着成象角与工作波长的互补关系。

When making a 4:3 graphic on a square pixel device for conversion to a 720 by 576 video image, the width of the 768 by 576 image must be increased to

在基于一个方形象素设备上制作一个4：3图象为了转换成一个720*576的视频图象的情况下，768*576必须增加到以下结果

First scanning the known handwriting materials then number them ,In pretreatment, we convert the valid part of the image into a standard size, as images carries out duotone and go throw off chirp handling in order to achieve better effect.draw features from the known handwriting materials with the Co-occurence,especially,we divided a copy of handwriting into 25 little pieces with the size of 128*128 ,drawing features from every little piecese with four directions(0 degree, 45 degrees, 90 degrees as well as 135 degrees) and calculate the four major feature values( veins and the statistical quantity of veins contrast and the statistical quantity of veins consistency Shang the statistical quantity of statistical quantity as well as the veins correlation of gray scale ), preservation all the feature value that drawn from all known ma terials to the handwriting characteristic database,then input the unknown handwriting materials, also using the method of the Co-occurence to draw those features, recycling the minimum European Distance law match the unknown writing material feature value with the handwriting characteristic feature database, export the label of the known hand writing materials which is most similar to the unknown material with minimum European Distance, and then we can confirm who is the author of the unknown material.

首先将笔迹材料作为图象扫描输入，并对其进行编号。预处理部分可将笔迹图象的有效部分规范化到一个统一尺寸，接着对其进行二值化和去除噪声的处理，以便于更好的提取图像的特征。在此我们采用了灰度共生矩阵法提取手写笔迹材料的纹理特征，与以往有所不同的是，我们将一份手写材料分割成64块大小为80*80象素的子图象，每个小块都从四个方向（0度、45度、90度以及135度）来更全面的提取特征，并计算出四个最主要的特征值（纹理一致性的统计量、纹理反差的统计量、纹理熵的统计量以及纹理灰度相关性的统计量），将从所有已知材料提取的特征值保存到纹理特征库中，对于待检手写材料，同样采用灰度共生矩阵的方法提取其纹理特征，再利用最小欧氏距离分类法将从待检手写材料中提取的特征值与纹理特征库中的特征值进行比对，与欧氏距离比对值最小的相匹配，输出匹配成功的原材料的标号，进而识别出待检材料书写者的身份。

Seismic tomography is used to study the 3-D seismic velocity structure andattenuation structure of earth by the seismic wave information obtained from a largenumber of passive earthquakes and artificial earthquakes.

地震层析成像是一项通过综合大量天然震源或人工源激发的地震波信息来研究三维地震速度图象或地球衰减结构图象的技术。

High speed and cheap wide band web make it possible to transmit a mass of medical image in long distance.

图象存档及通信系统实现了临床医学图象的有效管理和共享，目前已在国内大中型医院得到了比较广泛的应用。

Increasing the kilovolt peak or milliamperes used during scanning can reduce noise and improve scan quality, but this is not generally necessary to obtain diagnostic scans.

增加扫描时的管电压和电流能够减少噪声，改善图象质量，但是这不是获得诊断扫描图象的必要条件。

Furthermore, a motion estimation technique for sequential thermal images is presented which measures the parameters of global motion in the image plane due to zoom and pan of the camera or the process of the vehicle, and a motion compensation interpolation technique is also presented which can compensate the global motion. The algorithm is based on a three-parameter model for motion description, and some improyement is given in this method. Good results are shown in the computer simulation experiments.

在研究了帧内编码的情况后，本文进一步分析了序列图象的特点，并对由摄象机运动和车辆行进所造成的全局运动进行了运动估值和补偿研究，对现有的三参数估值算法进行了分析和改进，推导出热图的序列图象的平移及缩放的运动估值与补偿的公式，通过计算机模拟进行了全局运动的估值和内插实验，获得了较好的结果。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。