The distance the wall could be seen depends on the angular resolution of the imaging system (the eye) and the contrast of the wall vs. background.
能看清长城的最远距离取决于成像系统(眼睛)的角度分辨率以及长城与它周围环境的对比度。
The images are often then polished up in Photoshop, or some digital imaging package, but only the background and shadows are manipulated, the actual fluid shape is left untouched.
这些照片通常要通过Photoshop或其他的数码图像处理工具加以改善，但是这种修饰仅限于背景和阴影，流动的形态是不做任何加工的。
Background: There is no consensus on the optimum imaging method to use to confirm the diagnosis of true scaphoid fractures among patients with suspected scaphoid fractures.
背景：在用以证实可疑舟状骨骨折患者准确诊断的最佳影像学方法上未达成一致意见。
Background Functional imaging studies have investigated the human brain activity during analogy tasks.
研究背景：功能性成像已经应用于人脑类比推理研究。
Detecting targets from infrared cloud background is a typical application of infrared imaging techniques.
红外云背景中小目标检测是红外成像技术的一种典型应用。
Through studying the historical background of the focus detection and principles of optical imaging, the auto focusing system adopts image gradient as the auto focusing evaluation function.
从焦点检测的历史背景出发，结合光学的成像原理，提出了以图像梯度为对焦评价函数的自动调焦技术。
One of the most important contents about coherent imaging laser radar range image processing is suppressing the background.
相干激光成像雷达距离像处理的一个重要内容就是进行背景抑制。
Infrared Imaging Guidance is a homing method that using the image produced by different radiation of heat between target and background.
红外成像制导是利用目标和背景间的热辐射差，形成目标和周围景物的轮廓图像，来实现自动导引的一种制导方法。
The imaging algorithm can incorporate new data into the image in a recursive fashion which causes image background noise to diminish over time.
该成像算法能够以递归方式将新的数据融入到成像中，这使成像背景噪声随时间减少。
The Stokes parameters images of metal objects and camouflage nets in earth background are acquired by the thermal imaging polarization system in experiment.
利用该系统对地物背景(土壤)中的不同种类金属目标板及红外伪装遮障进行了热红外偏振成像探测实验。
This paper, in connection with ir target signature research, deals with the principle and realization for the ir imaging terminal-guidance technology of air-to-air missile in clutter background.
通过结合目标红外特征，研究了空-空弹在复杂背景条件下的目标红外成像末制导的技术原理和实施途径。
This image is a composite of clouds from GOES merged with background data of the land surface from NASA's Moderate Resolution Imaging Spectroradiometer (MODIS).
这些图像是GOES云朵与NASA(美国国家航空航天局)中解析度影像光谱仪(MODIS)地表背景数据相融合的合成物。
Detecting, recognizing and tracking moving targets in cluttered background is important to IR imaging guidance systems.
复杂背景下的运动目标检测、识别和跟踪对红外成像制导系统具有重要意义。
CEUS actions as a supplement means of ct, MRI and other imaging diagnosis, for to elevate the early diagnosis rates of SHCC under the background of liver cirrhosis.
可作为CT等影像诊断的补充手段，有助于提高肝硬化背景下小肝癌的早期诊断率。
The system is composed of off-axle paraboloid reflector, cross line target, background light, imaging collecting system and other devices.
该装置由离轴抛物面反射镜、十字靶标、背景光源、图像采集装置及其它附件组成。
Imaging, diagnosing and treating of bio tissues by use of red and infrared light is a hot research topic in the world due to its background of medical applications.
由于有医学的应用背景，利用红外和近红外波段的光对生物组织进行成像、诊断和治疗是国际上的一个热门课题。
According to the imaging difference of target, background clutter and noise, a moving small target detection method based on spacial high-pass filtering and N-frame track accumulating is presented.
根据目标、背景干扰和噪声在红外序列图像中的差异，提出了一种基于空间高通滤波和时间域上N帧轨迹积累的运动小目标检测方法。
Combined with the research on ir imaging signature of target, the principle of ir imaging homing guidance technology of air defence missile in clutter background is described.
结合对目标红外特性的研究，阐述了在复杂背景条件下防空导弹对目标的红外成像寻的制导原理。
Infrared polarization imaging technology is a new detection technique, and it can distinguish background and target through the infrared polarization characteristics of target.
红外偏振成像技术是一种新的探测技术，其主要利用目标的红外偏振特性背景与目标区分开来。
In chapter I, the background of the article is introduced. The theory and method of space target recognition and space ISAR imaging is introduced too.
第一章介绍了本文的研究背景，系统地介绍了空间目标识别以及空间目标ISAR成像的理论与方法。
The dissertation first introduces the background of medical image segmentation, MRI imaging mechanism, the segmentation target, and the assessment rules for segmentation results.
文章首先介绍了医学图像分割的相关背景、MRI成像机理和分割目标，以及分割结果的评估方法。
Due to LiveScience's early involvement in the controversy, the website has been able to reconstruct some background on how the U. S. brain imaging device could have been copied.
由于《直通科学》在这次纷争中的早期介入，网站已可以重组部分关于美国脑图像设备如何被剽窃的背景信息。
Summary of Background Data. Rotations of lumbar spinal motion segments can be measured with dynamic CT imaging.
背景知识概要：腰椎活动节段的旋转可以用动态ct来测量。
Summary of Background Data. Rotations of lumbar spinal motion segments can be measured with dynamic CT imaging.
背景知识概要：腰椎活动节段的旋转可以用动态ct来测量。
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