光图像

After analyzing and processing the grating reticle image collected by CCD, the mapping coefficient can be accurately calculated from grid size to pixels. Comparing the fore-and-aft two grating reticle images after the worktable moved. Adopting phase difference ratio arithmetic based on Lissajous figures,the phase difference of two images will be figured out. The displacement of the worktable can be further calculated by the mapping coefficient.

调整光路使CCD获取清晰的光栅图像，对图像进行分析处理，计算出栅距与像素之间的映射关系，再对工作台移动前后的光栅图像进行对比，采用基于李萨如图的相位差比率算法获取它们的像素位置差，从而计算出工作台的实际运行位移。

The normal directions of light stripes in an image are determined by using Hessian matrix.

利用Hessian矩阵确定图像中光条法线方向，在光条法线方向上求解光条中心亚像素位置，用8方向搜索法剔除干扰光条。

This system included s light micro-scope to magnify the image of the micro-structure and project the image of the CCD camera; froze the high speed motion station of micro-structure based on stroboscopic principle to get a serial of dynamic images; and used the optical algorithm based on label field and neighborhood optimization method to motion estimation for sequential images of micro-structures to obtain dynamic characteristics parameters.

系统包括：利用光学显微镜来实现微结构的放大，并将图像投影到CCD摄像机上；基于频闪成像原理来冻结微结构的高速运动状态，获取一系列动态图像序列；基于提出的标号场和邻域优化法相结合的光流算法对微结构的运动序列图像做运动估计，获取其重要动态特性参数。

A new self-adaptive background approximating and updating algorithm based on optical flow theory is first presented in this paper.

在光流场等技术的基础上，提出了一种自适应背景逼近更新方法，以适应光线的变化以及噪声的影响；根据彩色差值模型计算当前帧图像和当前逼近背景图像的差分图像；并引入Gauss模型实现了运动目标的自适应阈值分割。

Computer video judge system incepts two video signals, video collection and video disposing adopting parallel fashion, real-time disposes video image and judge, obtains undershoot value s and relatively distortion of vessel by combining two meas.

计算机视频判读系统接收两组光电自准直平行光管的视频信号，采用图像采集和图像处理并行工作方式，进行实时图像处理和判读，得出动态脱靶量，并对两路图像的测量结果进行叠加得出舰艇的相对变形量。

Digital image measuring is a new measuring technology. It is based on the optics and composed of optics, electronics and computer. It syncretizes electronics, computer science, laser science, and image processing technology. It is used widely in the following fields such as geometry dimension measurement, aviation remote sensing measurement, high precision locating and face location about image.

数字图像测量是近年来基于光学测量原理形成的一种新型测量技术，它以光学为基础，融合电子学、计算机技术、激光技术、图像处理技术等现代科学技术为一体，组成光、电、计算机综合的测量技术，它被广泛应用于几何量的尺寸测量、航空遥感测量、高精度定位、精密复杂零件的微尺寸测量和外观检测等与图像有关的技术领域中。

Considering the contributions due to viewed cone centred on the object point and extending through the luminnor body, the distribution of intensity in the image plane can be expressed by the integration of emitted powers of luminor body over the entire sightline under the paraxial approximation.

考虑到成像光锥的贡献，在近轴近似下，得到了用发光体的辐射强度表示像平面上照度分布的积分表达式，由此得到下列结果：1沿光路上每一垂直于光路的平面上能量贡献是一样的。2由于光路积分，探测器测到的光强涨落的幅度小于实际的涨落幅度，但在一定的条件下，发光体的涨落图像可重现。

The fixing structure for preventing screen filter from bending and distortion possesses following characters of structure: screen for focusing projective light from back side; filter in front of the screen; bracket having pinholes installed at certain position at back side of the filer; holding frame having pothooks for to be inserted into pinholes and fixing the filter into device case.

本发明将涉及一种可以防止发生设在屏幕前面的滤光片的弯曲和变形的图像显示设备的屏幕滤光片固定结构，具有下述的结构特征：设有从背面投射的光线得以结像的屏幕；设有设在屏幕前面的滤光片；设有安装在滤光片背面一定位置上的形成有针孔的托架；设有使滤光片固定到机壳上的，而且形成有挂钩，以便能插入针孔中的支撑架。

Based on the system, the arithmetic of the image processing was analyzed systematically and the process flow as well as the arithmetic of the structured light-based weld seam Image processing was compiled.

设计完成了用于焊缝跟踪图像处理的硬件结构系统，在此基础上对图像处理算法进行了系统的分析，设计完成了针对基于结构光的焊缝图像处理的工艺流程和算法。

Based on analyzing the optical activity of BSO and the principle and structure of the BSO-based optical-addressed spatial light modulator, the influences of the optical activity of BSO on the performance of SLM are concluded.

对BSO晶体的旋光效应特性及BSO基光寻址空间光调制器的结构及工作原理的研究表明晶体旋光效应会影响空间光调制器的图像转换质量。

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。