光栅投影成像是3维物体重建和测量的重要技术。
Raster projection imaging is an important technology for 3d object reconstruction and measurement.
在光栅投影图像的处理中，作者提出了几种优化算法。
In the raster projection image processing, the author of this thesis proposes a few optimized methods.
我想让我的头周围的光栅投影使用D3的地理课，是有点困。
I'm trying to get my head around raster reprojection using D3's geo class and am a bit stuck.
为解决该问题提出了利用双频虚拟光栅投影的三维测量方法。
So a method of 3d measurement technology based on virtual grating of double frequency was present in the paper.
提出了一种光栅投影式立体照相系统中光栅投影平面的标定方法。
In this paper, a method is proposed for projector calibration in 3d photography systems using grating projection.
首先分析光栅投影法的结构原理，得出高度拟和系数并非常量的结论。
The structural principle of grating is analyzed at first, and then a conclusion is reached that the height fit coefficients are not constant.
利用双目CCD相机记录的光栅投影测量技术是一种新型的光学测量方法。
Projection grating measuring technique, which records the measurement results with binocular CCD camera, is a new optical measuring method.
光栅投影法是计算机辅助设计、逆向工程等领域用于物体轮廓测量的常用方法。
Grating project is a common method use for profilometry in Computer-Aided Design, Reverse Engineering and other fields.
分析在光栅投影三维形貌测量中，用于对变形光栅像解调的低通滤波器的性能。
In 3-d profilometry based on structured light projection, the choice of low-pass filter to be used in the deformed pattern demodulation is crucial.
实验表明，采用编码光栅投影视觉测量能够高效准确地测量自由曲面的三维轮廓。
Using grating projection and stereo matching based on these constraints, free-form 3-D profiles can be measured efficiently and accurately.
首先将矩形光栅投影在被测表面上，利用光栅投影法测量自由曲面上每点高度信息。
First, grating is projected on measured free surface, and height data of each point on free surface is measured by the grating projection method.
将光栅投影到已知目标平面，通过数字摄影得到光栅平面与目标平面相交的光栅图像。
An image with intersection lines between grating planes and a known objective plane can be captured by a digital camera.
在光栅投影三维轮廓术中，直接条纹位移分析法存在着垂直条纹方向分辨率低的缺点。
Among all methods of 3-d profilometry with projecting grating, direct fringe displacement analysis has the fault of low resolution in vertical fringe direction.
叠相还原的困难是光栅投影式轮廓测量技术中影响可靠性和阻碍自动化测量的最大问题。
The difficulty in phase unwrapping is the key problem that compromises reliability and prevents automatic measurement in grating projection profilometry.
实验结果表明本文采用的光栅投影式物体表面三维形貌测量方法能够获得比较满意的结果。
It is proved that this measurement method for three-dimensional shape of object surface with grating projection presented in this dissertation can obtain good results.
建立了数字光栅投影轮廓测量系统的简易标定模型，以实现测量系统的简便化和便携式应用。
A simple calibration model was developed for digital fringe projection profilometry(DFPP) based on absolute phase extraction and space mapping techniques to simplify the measuring system.
阐述了一种非接触式结构光光栅投影三维测量技术原理，给出了利用该原理测量零件的过程和测量结果。
It is expatiated a not on the principle that using structured light grating projection measurement. Detailed measurement processes and results.
本文对光栅投影条纹图像进行预处理，提出采用重心法提取条纹中心线位置，可以获得亚像素级的精度；
The method of barycenter, which can obtain the sub-pixel accuracy to abstract the fringe-centerlines, is presented in this paper after preprocessing the picture using grating projection.
利用此结论创建用于压缩的二值掩模矩阵，并对光栅投影图之一的位相图进行基于离散余弦变换的压缩。
Using this conclusion and considering the characteristic of grating projective images, the paper creates the 0-1 value mask to compress the DCT coefficient matrix.
光栅投影测量物体三维轮廓技术利用计算机生成光栅条纹，通过投影仪投射到被测物体表面，采用CCD摄像机捕获条纹图像。
The technique of 3-D profile measurement based on grating strips project, which created the strips by the computer, projected it through the projector, and captured the strips image by CCD camera.
与传统的光学测量方法不同，测量系统采用两个CCD相机记录投影光栅，减小了测量误差，提高了测量精度。
Differing from the traditional optical measuring method, the measuring system USES two CCD cameras to record projection grating, thus reduces errors and improves measuring accuracy.
本文提出了一种用于投影显示的新型光栅光调制器。
A novel grating light modulator for projection display is introduced.
以余弦光栅作为投影光栅和参考光栅，对投影型莫尔法从物理光学的角度进行了理论分析。
The cosine grating is taken as the projected grating and the referenced grating; the projection moire method is analyzed by the physical optics.
本文介绍了一种液晶相位光栅大屏幕投影系统，讨论了液晶相位光栅的基本衍射特性。
In this paper, liquid crystal phase grating large screen protection system is introduced, and its fundamental diffraction characteristics are discussed.
实验系统光源采用数字光学投影仪，并用计算机生成电子光栅。
A digital optical projector is used as the optical source, and the electrical grating is generated by computer.
在第四章，根据标量衍射理论，首先讨论了两平面波干涉场的空间分布与平行投影正弦光栅的等价性。
In chapter 4, According to the theory of scalar diffraction, firstly, the equipollence of spatial distribution of the plane-wave interferential field and parallel projective sine grating is discussed.
采用光栅技术，用98J型精密测量投影仪对X光底片进行测量，用微机采集和处理数据。
The 98J mode precision measurement projector is used for measurement of X ray plate by grating technique and a personal computer is used to collect and to process the data.
用软件在计算机上生成虚拟光栅，将两种频率的光栅合成为投影复合光栅进行测量。
The virtual grating was computer generated, so the grating was very fine and the frequency was easily changed.
研究了光栅图象的投影、采集及预处理方法，并对得到的被测物体表面三维数据点进行重构显示。
The preprocessing methods of grating image are studied, and the 3d object surface data is reconstructed.
研究了光栅图象的投影、采集及预处理方法，并对得到的被测物体表面三维数据点进行重构显示。
The preprocessing methods of grating image are studied, and the 3d object surface data is reconstructed.
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