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The influence of the crystal and collimator on the property of gamma camera based on position sensitive photomuli...

本论文通过计算机Monte-Carlo模拟，研究了晶体和准直器对单管γ相机性能的影响。

This paper proposes a flexible and reliable camera calibration of stereo vision measurement system based on unit quaternions with optical reference bar, which has three small collinear infrared LED feature points and the lengths between these feature points have been precisely calibrated.

提出了一种利用光学参考棒，基于单位四元数法的灵活、有效的立体视觉测量系统现场校准技术。

A comprehensive calibration model was established through the analysis of the distortion factors in the camera imaging process.A collinearity equation of the calibration parameters was derived and linearized.

通过对摄像机成像过程中各种畸变因素的分析，建立一个更加全面的校准模型；建立了关于校准参数的共线性方程，并对其进行线性化。

Collinearity equations through collinearity restriction to model of pinhole camera are got, and given the whole process of the optimization method based to the transform of collinearity equations.

视频测量技术用于确定三维空间物体坐标和与之相对应的二维图像坐标之间的关系[1]，对成像系统的精确定标，确定空间对应的几何关系是先决条件[2]。

Based on projective geometry,the research works about 3D invariances extraction and application have been done in this thesis as following:(1) The basic theories and concepts in projective geometry are systematically summarized. It includes:the camera models of perspective imaging,projective collineation,cross ratio,a simple compare about invariance among some geometry transformations,fundamental matrix,epipolar and epipolar line in epipolar geometry,and so on.

基于射影几何理论，论文围绕3D不变特征的提取和应用进行了如下的研究工作：(1)系统总结了射影几何中的若干基础概念，包括：透视成像的相机模型、射影对应、交比不变量、基于不同几何变换下的不变量的简单对比、对极几何中的基础矩阵、对极点、对极线等。

Gibbons is both a classical and regional photographer, an aspect that is note unusual as the wet collodion process requires one to carry the processing equipment into the field. It is also large:14×11 inches-the size of the camera.

Gibbons 是专业的古典摄影师，一方面关注的领域是可以达到湿版火棉胶摄影法需求的设备，同时也对：14×11英尺的相机很感兴趣。

Another way to achieve correct color balance, if your camera supports it, is to save your photos in raw format.

要获得正确的色彩平衡，如果相机支持的话，可以将照片储存为RAW格式。

Experimental results show that octree color quantization and vector median filter can perform well in preprocessing of color image for digital camera.

结果表明，用八叉树结构量化和矢量中值滤波对数码相机采集到的彩色图像进行预处理可达到较理想的效果。

Using the color changing information of phase change paint, this technique mainly applies an image capturing and processing system which consists of a CCD video camera and a computer to measure the characteristic parameter and the heat transfer rate of model surface in hypersonic flow.

该技术主要是运用CCD摄像机与计算机组成的图像采集与处理系统，利用涂料发生相变的颜色变化信息，测定高超声速流场中模型表面气动加热的特性参数和热流分布情况。

undertakes with digital camera photography of color separation polarized light is effective, relatively traditional method improved work efficiency.

结论用数码相机进行分色偏振光摄影是有效的，相对传统方法提高了工作效率。

A strange and mysterious deep sea creature.

一种奇异、神秘的深海生物。

It's a yellow rectangle .

这是黄色的长方形。