Objective: to study the factors influencing multi-slice ct image artifacts.
目的对多层螺旋CT图像伪影的成因及其影响因素进行分析。
An apparatus and method of reducing image artifacts on ink coverage areas of a lithographic printing plate are provided.
本发明提供了一种降低平版印刷版油墨覆盖区上图像伪影的设备和方法。
Reconstructing MR images from under-sampled measurement data using traditional reconstruction methods usually results in image artifacts and low signal to noise ratio.
用传统MR图像重建方法对降采样数据进行重建往往会产生严重的伪影或导致重建图像的信噪比下降。
The main reason is the radon space data of scanned object is not complete, which will result in the image artifacts when using FDK algorithm to reconstruct with moderate or large cone angles.
本文分析FDK算法在中大锥角时重建产生伪影的主要原因是投影数据不完全，被扫描物体雷当空间数据缺失。
The article puts great emphasis on the reasons of ultrasound image artifacts, discusses the image artifacts caused by complicated interface and presents a new view on ultrasound image artifacts.
文章讨论了各种超声图像伪像形成的原因，并在此基础上从声波的传播角度，对超声伪像给出了新的认识，提出了一些控制方法。
Hardly seen in literary texts, but commonly found in Han archaeological artifacts, was the image of the nine-tailed fox as one of the Queen Mother of the West's animal attendants (figure I.).28.
文献罕见，但是汉代的考古文物中常常见到这样的图像，九尾狐作为西王母的一个动物扈从列侍(如图：西王母、九尾狐和其他侍从，公元1至2世纪四川墓砖，感谢四川大学陈霞)。
The image in this article has been cropped and enhanced to improve contrast. Lens artifacts have been removed.
文章中的图片已经过了裁剪和强调以增加对比度，镜片处理工具已被移除。
The image has been cropped and enhanced to improve contrast. Lens artifacts have been removed.
此照片已被重新剪裁以更好地凸显图中对比，模拟镜头效果已被移除。
Dual-energy CT has also been shown to allow for improvements in image quality and reduction in artifacts such as beam hardening that have traditionally limited CT perfusion imaging(101).
双能CT也已被证明能够改进图像质量和减少伪影如射线硬化等在CT灌注成像方面的传统局限性（101）。
The algorithm keeps edges smooth, sharp and clearly defined, while improving image appearance by removing unwanted noise and compression artifacts.
该算法保持优势顺利，锐利和明确界定，同时提高影像外观消除不必要的噪点和压缩文物。
Conclusion: image reconstruction in the optimal phase can decrease the artifacts of cardiac motion as possible and improve the quality of images.
结论：选择最佳时相进行图像重建可以最大限度减轻心脏运动伪影，提高图像质量。
We take ge Corporation xenon detector ct as the research object, discuss the ct image performance of the rare artifacts and introduce the general maintain method.
以GE公司氙气探测器型CT为研究对象，讨论CT图像平常不常见伪影的图像表现，并给出一般的检修方法。
Conclusion The optimal R-R phase of retrospectively ECG-gated reconstruction images can decrease the artifacts of cardiac motion and improve the reconstructive image quality of coronary arteries.
结论选择回顾性心电门控最佳R R时相重建冠状动脉可以最大限度减轻心脏运动伪影，提高图像质量；
These artifacts seriously influence image quality and bring huge difficulties for judgment.
这些伪影严重影响了图像的质量，给人们的判断带来极大困难。
The image of the dragon is ever present in a variety of works of art, languages and scripts and in all kinds of artifacts.
在各种艺术作品中，在语言文字中，在各类物品上，都不乏龙的形象。
Once this kind of data is used to reconstruct the image directly, beam-hardening artifacts appear in the reconstructed image.
若直接用多色投影数据来重建图像，就会出现射束硬化伪迹，这种硬化伪迹如果不校正就会影响医学诊断和工业检测的结果。
ARTIFACTS - unnatural distortion, defects, noise, or patterns in the image.
人造物品—图片上的非自然造成的变形，缺陷，噪音或图案。
In the process of MR scan, because patient' s motion affects the collected data, the reconstructed image would contain severe motion artifacts.
在MR扫描过程中患者的自主或非自主运动使获得的采集数据的相位发生偏移，因而重建图像含有运动伪影，严重地影响临床诊断。
Conclusion: For those artifacts of DTI which cant been removed by adjusting sequence parameters, the method of medical image processing can be implemented.
结论：对于依靠调节成像参数难以去除的弥散张量成像伪影，借助医学图像处理方法则能够有效的改善。
Objective To explore the image stability of CR900system and avoid artifacts caused by improper operation.
目的探讨CR900系统工作中图像的稳定性，尽量避免各种操作不当产生的伪影。
A metal artifacts reduction method using nonlinear weights was developed to suppress metal artifacts in X-ray CT(computerized tomography) images to improve the image quality.
为抑制计算机层析造影（CT）系统重建图像中出现的金属伪影，提高图像的质量，采用一种基于金属投影非线性权重衰减的方法进行校正。
The block-Based Discrete Cosine Transform (BDCT) suffers from visible blocking artifacts between adjacent image blocks at low bit rates, which reduces the image visual quality.
块离散余弦变换在低比特率时其恢复图像的块边界上会出现明显可见的方块效应，从而降低了图像的视觉质量。
But, most compositing software deals with a pre-multiplied image differently, which can produce artifacts when color correcting and compositing.
但是，很多合成软件在校色和合成处理预乘是不同的。
Why do occur in this region so many stone artifacts?All the music in the reflected image in the propagation of Buddhism, the image covers the Buddhist ritual bowing secularization;
为什么在这个地区会出现如此多的石刻文物?在所有的音乐图像中反映出的佛教传播问题，在图像中涵盖了佛教中礼佛仪式的世俗化问题；
Objective To solve the problem of low resolution and more artifacts in image reconstruction from incomplete projections.
目的解决少数据投影图像重建中分辨率差、伪影严重等问题。
However, due to the ill-posed nature of the super-resolution image reconstruction, the ringing artifacts can not be easily removed in the reconstruction process.
但是，由于超分辨率图像重构本身是一个病态求逆过程，在重构图像中所产生的边缘振荡效应往往很难在重构过程中予以消除。
According to the above analyses, a hybrid algorithm for image zooming based on stair thinning is proposed to decrease the artifacts.
根据上述分析，本论文提出了基于阶梯细化的图像放大算法。
The result showed that the method can effectively reduce the scatter artifacts and increase the quality of the reconstructed slice image.
实验结果表明，研究提出的散射校正方法能有效减少基于平板探测器的锥束CT 系统散射伪影，提高了重建切片图像的质量。
The small scale artifacts generated by aliasing noise existing everywhere in an image, bring difficulties to some applications, such as target identification.
欠采样噪声产生分布于整个画面的小尺寸附加像，给目标识别等应用带来困难。
The small scale artifacts generated by aliasing noise existing everywhere in an image, bring difficulties to some applications, such as target identification.
欠采样噪声产生分布于整个画面的小尺寸附加像，给目标识别等应用带来困难。
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