查询词典 light image

This is a HubbleSpace Telescope NICMOS (Near Infrared Camera and Multi-Object Spectrometer) coronagraphic image of a planet orbiting the star HR8799, located 130 light-years away.

这是哈勃的NICMOS拍摄的HR 8799恒星的遮光图片，HR 8799离我们130光年，图中恒星的光已经被星冕仪遮掉了。

It is an important disquisitive direction that applying video processing technology, which is centered about high-speed digital signal processor, to improve low-light-level and infrared video systems" image quality and systems" vision distance. It has significant military value. And it also enlarges the applying domain of DSP and digital signal processing technology.

将以高速DSP器件为核心的视频图像处理技术应用于改善微光与红外视频系统的成像质量、提高系统视距，是当前军用夜视技术的一个重要研究方向，具有重要的军事应用价值；同时，也拓展DSP器件与技术的应用领域，具有重要意义。

ResultsOne example was misdiagnosed,and the ultrasound diagnosis coincidence rate was 94.1%.The basic acoustic image characteristics of retroperitoneal abscess was:fluid or mixing masseslocated in the retroperitoneal space,with the shapes of round,ellipse or fusiform,echoless or mix echo in it,and light-spot,laminated echo and facula was seen.

结果：本组误诊1例，超声诊断符合率为94.1%，腹膜后脓肿基本声像图特征为：位于腹膜后间隙的液性或混合性包块，呈圆形、椭圆形或梭形，内为无回声或混合回声，并见光点、片状回声及光斑。

Results One example was misdiagnosed, and the ultrasound diagnosis coincidence rate was 94.1%. The basic acoustic image characteristics of retroperitoneal abscess was: fluid or mixing masseslocated in the retroperitoneal space, with the shapes of round, ellipse or fusi-form, echoless or mix echo in it, and light-spot, laminated echo and facula was seen.

结果：本组误诊1例，超声诊断符合率为94.1%，腹膜后脓肿基本声像图特征为：位于腹膜后间隙的液性或混合性包块，呈圆形、椭圆形或梭形，内为无回声或混合回声，并见光点、片状回声及光斑。

According to the special structure of the large visual field CCD camera used in moving target tacking, a new method based on adjusting the electronic shutter steplessly is proposed to get the high quality image. Through adjusting the exposal time in real time,we could make the light adjusting fast and accurately.

针对用于目标跟踪的大视场CCD相机的特殊结构，为了获得高质量图像，提出了一种基于电子快门无级调节的自动调光方法，即通过实时调整CCD相机的曝光时间来实现快速、高精度调光。

In order to tracking with the beacon facular real time and high precisely for fine tracking system in space light communication, a suit of fine tracking control flat based on high frame frequency CMOS camera is designed, image processing and control algorithms are all integrated into the large scale FPGA chip.

针对空间光通信系统对信标光斑实时准确跟踪需求，设计了基于高帧频相机的精跟踪处理控制平台，并将图像处理和控制算法全部集成在大规模现场可编程门阵列芯片内部。

In view of the facts that traditional graphical construction has less pertinence to stray light and tracing different incidence angle rays is fatiguesome and more likely to omit some rays, we proposed a reverse ray-trace method based on the ray reversibility. According to the method, a dot-matrix source was set at the image plane. Each dot emitted rays to fully cover the system aperture. A detector surface, large enough to receive all possible rays from the source, was set at object plane.

针对传统作图法设计遮光罩的针对性不强，且追迹不同入射角的光线繁琐、容易遗漏的问题，本文提出一种逆向追迹法，依据光的可逆性，在像面处设置点阵面光源，每一点都发出充满系统孔径的光束，在物面设置足够大的探测面，使之有充足的余量记录所有到达物方的光线，利用该方法可以在探测面上直观地区分出非成像杂散光。

China Aero Geophysical Survey and Remote Sensing Center for Land and Resources,Beijing 100083,ChinaIt is a difficult task for shadow and feculent water area processing when extracting water body from remote sensing image by traditional methods.Light Laser Detection and Ranging is robust to gain point cloudy data from shadow and feculent water as it has less affection from that area.However,the point cloudy data is always with low resolution which results to contour line with low accuracy.

从遥感影像中提取水体的传统方法在阴影处和水体浑浊处存在一定局限；机载激光雷达获取点云数据时水体受阴影和浑浊的影响小，因此使用点云数据提取水体比使用影像数据更加稳健；但点云数据的分辨率低，所提取的轮廓线精度不高。

When the incident pupil 2h of focimeter is corresponding with human pupil, the measuring value of the back vertex power is the real back vertex power of contact lens-the reciprocal of distance on the orientation of image L0.87h′of band height 0.87h light.

焦度仪的入瞳2h与人眼瞳孔相匹配时，测量的接触镜后顶焦度就是接触镜实际后顶焦距——带高0.87h光线的像方截距L0.87h′的倒数。

It has the and of shape world, showing as voice, image, data and information, existing in the form of sound, light, electric, magnetism forms of particle. It is vivid, formative, audio visional; it is actual, reliable and objective. Wielding modern science and technological means recording suits; independent from subject; it can reappear the process of criminal, having more accuracy and forgeable.

它是借助于有形物质而存在的无形物质，表现为声音、图象、数据、信息等的视听资料是以声、光、电、磁以及其他粒子形式存在的；视听资料生动、形象、直观，它望之有形、闻之有声、查之有据；视听资料准确、可靠、客观，它是运用现代科技手段记录案件的观客事实，不受主观意识制约；视听资料可以原声原貌地再现犯罪过程；视听资料还具有信息量大、科技含量大、精密度高、易于作假等特征。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。