不同需要可选用不同的物镜，例如，投影物体轮廓和外形的投影仪，物镜应较好地矫正畸变和像场弯曲；
For example, Projection objects profile and appearance of the projector. The objective should be better correction distortion and like a crooked.
把光敏电阻传感器对准地面，扫清地面上的障碍——你的机器人会避开在行进路线上的物体投影。
Aim the photoresistors on the ground and you have instant obstacle avoidance - your robot will avoid the shadows cast on the ground by objects in the way.
御夫座ε星每27年就会发生一次蚀变，科学家们趁此良机拍下了它的特写照片，通过照片他们发现有一片奇怪的黑色物体投影在该星体上。
Scientists taking close-up photographs of the Epsilon Aurigae during its eclipse, which happens every 27 years, noticed the strange dark object's shadow on the star.
阴影深度取决于光照方向和强度，以及物体和投影面的距离。
The qualities of a shadow depend on the light direction and intensity, as well as the distance between the object and the surface where the shadow is cast.
售价150美刀的Giovannoni时间球是一个俏皮的闹钟——呃，尽管实际上它不是一块表，但是它能够利用一个红外球将时间投影到任何物体的表面。
At $150, the Giovannoni Timesphere is a nifty alarm clock – well yes not a watch practically though, however is capable of projecting the time onto any surface via a wireless orb.
它们计算的是物体的顶点而不是像素。这意味着它们不支持投影遮罩和发现贴图。
They are computed at object's vertices, not pixels. This means they do not support light Cookies or normal maps.
在闪光无法与旋转物体角移严格同步时，为进行CT图像重建，需对这些随机投影的投影角进行识别和确定其在正弦图上的位置。
In case of no way to make synchronizing between the flash and the rotating, one has to identify the Angle of all the random projections on the Sinogram before doing ct image reconstruction.
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.
本论文探讨了一种非接触式快速获取三维物体外形的检测方法——面结构光投影三角测量法。
It presents a method named surface Structured Light Projection Triangle Measurement, by which we can capture the surface topography of a three-dimensional object without any contact.
提出了一种新的投影云纹偏转法用于实时显示和定量测量位相物体的全场密度和温度。
This paper presents a novel method based on projection moire deflectometry for the visualization and quantitative evaluation of full-field density and temperature variations in phase object.
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.
基于莫尔效应，本文提出了一种利用白光面光源进行双编码栅反向投影，以等位线条纹的形式测量物体相位变化的新方法。
Based on the Moire effect in shadow-casting of two coded masks a new kind of optical method is proposed to map phase variation on the object image with an extended incoherent illumination.
论述了由单幅X射线投影进行轴对称物体密度重建的正则化方法。
The regularization method for density reconstruction of axially symmetric objects using a single Xray projection is described.
体视投影利用了人眼观察物体的原理，立体感很强。
Therefore the stereo effects are worse, but the stereo effects of the stereo projection are very strong.
本论文探讨了一种非接触式快速获取三维物体外形的检测方法——面结构光投影三角测量法。
This dissertation presents a method named surface Structured Light Projection Triangle Measurement, by which we can capture the surface topography of a 3d object without any contact.
为实现小凸多面物体面形快速重建，提出了基于投影轮廓的新方法。
A projective silhouette based method was proposed to reconstruct the shape of little convex polyhedron.
垂直投影乍眼一看有点古怪，由于物体的尺寸并没有因为它们的距离而改变，而是保持大小相同。
Orthographic projection often seems a bit odd at first, because objects stay the same size independent of their distance: it is like viewing the scene from an infinitely distant point.
采用像素点变换法，实现了根据三维物体的二维投影图像恢复物体表面的真实几何面积的设想，大大降低了缺陷面积计算的误差；
To decrease the relative errors, the pixel transform method was adopted to recover the geometrical feature of sphere fruit surface from projected image while the area of defect was calculated.
基于数字图像相关法解调被物体高度调制的投影栅线平移量的原理，提出了显微栅线投影相关法的概念。
Based on the principle of demodulating the displacement of the projected fringes with digital image correlation method, a micro fringe projection correlation method is proposed.
型：打破物体除了和投影。
它采用了一种可由计算机控制的、可变空间频率的莫尔条纹投影仪，利用不同空频的两次变精度测量，以适应待测物体形面的突然起伏。
A new kind of moire fringe projector controlled by computer is used for changing the spacial frequency to adapt the contour of the object to be measured.
它的基本思想是通过投射激光线光束到被测物体表面，在物体表面形成一条投影亮线。
It is to project a laser sheet onto the tested surface, and form a light line on the surface.
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.
一种光学装置，可将物体虚像投影到一平面之上，多用于跟踪。
An optical device that projects a virtual image of an object onto a plane surface, especially for tracing.
本文分析FDK算法在中大锥角时重建产生伪影的主要原因是投影数据不完全，被扫描物体雷当空间数据缺失。
The main reason is the radon space data of scanned object is not complete, which will result in the image artifacts when using FDK algorithm to reconstruct with moderate or large cone angles.
接下来，如果你将顶视图和右侧视图向前翻折的话，你就会得到一个能够显示该物体三视图的正交正投影。
Next, if you could fold the top and right-side views forward, you would have an orthographic projection showing three views of the object.
同时还讨论了体素尺寸、几何映射获取投影矩阵以及探测器尺寸与成像物体尺寸比值对断层图像空间分辨率的影响。
Then the effects of the voxel size, the geometrical mapping of the projection matrix and the ratio of detector size to imaging object size, on the spatial resolution were discussed.
对投影光栅方法获得的位相调制空间载波图进行二维数字图象处理，实现了散射物体的三维曲面测量。
The shape measuring of a diffuse abject is conducted based on 2-D digital image processing phase modulated fringe pattern acquired by the projection of Ronchi rulings.
应用投影栅线法在现场检测三维物体的形状时，参数标定是影响测量精度最重要的一个因素。
In projected grating method used for measuring 3d surface topography, parameter calibration is the most important factor which affects the measurement precision.
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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