光斑

20个结节内可见散在或斑片样强光斑，病理诊断为伴发钙化。

20 microglial nodule scattered or patchy strong flare , pathological diagnosis companion hair calcification .

光斑常按照它在图象中的位置来描述，例如，边沿光斑、底部光斑。

Flare is often described in terms of its position in the picture , e. g. , edge flare , bottom flare .

基于FPGA的红外光斑中心实时检测

Real ! time detection of infrared spot based on FPGA

提出了一种对激光光斑的CCD数字图像进行预处理的方法。

A method to preprocess the CCD digital image of laser spot is proposed .

采用CCD的空间光通信光斑位置提取重心算法的分析及实验

Analysis and Experiment of CCD-applied spatial optical communications light spot position locating gravity center calculation

Matlab与VC（++）混合编程在光斑位置测量中的应用

The Application of Mixed Programming between Matlab and VC_ ( + + ) on Speckle Position Estimation

通过实验在高增益的TEACO2激光器中，得到了基模环形光斑输出。

The ring output spot of the fundamental mode is obtained from a high gain TEA CO2 laser by experiment .

典型的光斑检测系统由CCD模拟摄像机、图像采集卡和计算机组成，对图像信号的图像处理都是在计算机内完成。

Typical visual inspection systems are simulated by the CCD camera , frame grabber and a computer .

PSD位置特性与光斑及背景的关系研究

Relation Study of Position Characteristic of PSD with Lightspot and Background

对角度的测量方案作了分析、研究，对常用的三种光斑定位器件：QD、PSD和CCD的性能进行了对比分析。

Analysis and study for angle measuring schemes is conducted .

实验结果表明，负载电阻对四边形PSD的总光电流没有影响，但对光斑定位有影响。

The results show that the total photocurrents are not affected but positioning error .

PSD光斑定位中的抗干扰技术研究

The Research of Antijamming in Facula Orientation

测量系统基于PSD传感器的光斑定位原理。

The measurement system is based on facular-orientation theory of position sensitive detector ( PSD ) .

用Hough变换提高激光光斑中心定位精度的算法

An Algorithm To Raise the Locating Precision of Laser Spot Center Based on Hough Transform

在此装置中，采用同步式电荷耦合器件（CCD）相机对强激光散射光斑和弱背景进行不等时曝光来获取离子源内部图像。

In the instrument , a synchronous CCD camera is used to expose different time for lasers and background to capture the image .

PTR系统空间分辨率受光斑尺寸影响的理论和实验研究

Effect of Beam Size on Spatial Resolution of the PTR Systems

主要介绍GRIN透镜在红外波段聚焦光斑直径的测量方法及误差分析。

The measurement method and error analysis method of GRIN lens focal spot diameter in IR wavelength are described .

axicon透镜焦点光斑的点列图计算

The calculation of spot diagram of focal spot of axicon lens

以面阵CCD为传感器，检测光纤端部出射光斑，采用重心法提取光斑的特征点表征光纤的位置。

With planar array CCD sensor , exit spot from optic fiber end is detected through extracting the characteristic points of spot for characterizing the position of optic fiber .

激光束垂直入射到火车车轮上，再用透镜将火车车轮上的激光光斑成像到CCD上，当火车车轮产生磨损时，CCD上激光光斑的像也将发生位移。

The laser spot of the upright incidence to train wheel is imaged on CCD . While the train wheels are frayed , the image of spot will take place displacement .

通过ABCD矩阵进行了腔参数优化，选取了更有效压缩KTP上基模光斑半径的V腔进行腔内倍频实验。

Using ABCD matrix to optimize cavity parameters , V-shaped folded cavity which could compress the laser mode radii on KTP effectively was selected .

论文的基本思想是采用激光光源照射被测物体，物体表面产生漫反射光斑，利用三角测量原理，光斑在CCD表面成像。

The main idea of this issue is that Irradiating the measured object with laser , light-spot was produced on the surface , and then imaged on CCD surface by triangulation principle .

脉冲激光通过光学系统的聚焦之后，利用衰减器将脉冲激光能量衰减至CCD相机的线性响应区，从而在CCD相面上形成光斑图像。

Pulsed laser focused by through the optical system , then the energy of pulsed laser is attenuated to the CCD linear response zone by attenuator , and formed facula at CCD .

级光斑示rpe、感光细胞和外核层细胞大量溶解破坏；

With ⅱ grade photic spot , many RPE cells , photoreceptors and cells in outer nuclear layer were lysed and destroyed ;

对横流电激励连续CO2激光器正支共焦非稳腔的环形输出光束，进行了近场和远场光斑图样和强度分布理论计算及实验测量，两者基本一致。

The intensity and the near and far-field patterns of an unstable confocal resonator of the transverse-fiow electrically excited CW CO2 laser have been studied theoretically and experimentally and their results are in good agreement .

本软件的开发主要采用基于WINDOWS编程方法，用C/C++语言混合编码，同时结合调用OpenGL图形库的路线，对CCD获取的激光光斑图像进行系统的数字分析和结果显示。

The software developing mainly takes the method that combines WINDOWS programming , C / C + + programming with OpenGL library functions , and makes systematic data analysis and result display .

针对实验室用大功率CO2激光的光束特性和烧结陶瓷实验时对光斑的特定要求，本研究从理论设计了一套激光均束装置。

According to beam properties of the CO2 laser in the laboratory and light spot requirement for laser sintering , a set of laser beam homogenizing equipment is designed in this thesis .

设法让电子快门的触发脉冲在每个激光脉冲到来前的固定时间间隔产生，保证CCD捕捉到光斑的全部能量，从而可以使CCD输出最亮的光斑图像。

Manipulating the trigger pulses of a CCD electronic shutter , the shutter will be pre_opened . Therefore , the full energy of the laser spot lasting only several nano_seconds can be caught .

在厚度为100μm的Ta靶背表面观测到渡越辐射光斑呈现出星状结构，光斑较小，与高能质子发射出现的星状结构极其相似；

For a 100 μ m thick target Ta , the facula was a star-structure and became smaller , which resembles a star-structure of the energetic proton emission .

PSD具有位置分辨率高、灵敏度高、响应速度快、位置与光强同时测量、不受光斑约束等优点，特别适合作为非接触式传感器的检测装置。

With high resolution , high sensitivity , fast response speed , location and light intensity simultaneous measurement , PSD is suitable for detector as contactless sensor .