And if there are multiple light sources, why does each object only cast one shadow?
而且如果说有多个光源的话，为什么每个物体只有一个影子呢？
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.
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。
When light from a single direction (e.g. our sun) hits an object, part of the object is in shadow.
当单一光源例如太阳照到某个物体上，物体的一部分会处于阴影中。
Wrong perception of an object eg one thinks one's own shadow as belonging to someone else.
对一个目标的错误的觉知，例如一个人以为自己的影子是别人的。
An object, such as the style of a sundial, that projects a shadow used as an indicator.
日晷仪一种物体，用它的影子作指示器，如日晷仪。
Harry was just able to make out the indistinct features of an object that looked like a skull, and something like a mountain that was more shadow than substance.
哈利只能看到一个模糊的、头盖骨似的物体，还有似乎是一座山的影子，而以前的图像清晰逼真。
Shadow generation of composited object is always a research hotspot in Computer Graphics and Computer Vision, which has very important application value.
合成物体的阴影生成是当前计算机图像学、计算机视觉中的一个研究热点，它具有十分重要的应用价值。
In this paper, I have done a deeper and more meticulous research on this method, and present the image-based shadow generation method of composited object in complex scene.
在本篇论文中，作者对这一方法进行了更为深入、细致的分析研究，并提出了基于图像的在复杂场景中生成合成物体阴影的方法。
Proxy objects will be placed wherever there is an object in our shot that will receive a shadow from our CG object.
在实拍中有实际物体的地方都应放置相应的虚拟物体来接收CG物体产生的阴影。
In virtual environment, the object shadow silhouette is same as the perspective view at the position of light.
在虚拟环境中，对象阴影的轮廓与在光源位置对对象的观察视图相同。
I've also outlined the shadow and some details in the object that will help guide my over-sketch.
也勾出了阴影，和一些可以帮助我做整体描绘的细节。
My second card is the earth's shadow: When cast on the moon during eclipses, it appears to be the shadow of a round object.
我的第二张牌是地球的影子：月食期间，地球投在月亮上的影子看上去呈圆形物体状。
Shadow has great impact on visual tracking system, especially in some applications that need to measure the size of the object. It is a meaningful job to deal with shadow.
阴影对于视频跟踪系统是一种严重的干扰，尤其是在一些测定目标尺寸的应用中，因此对阴影处理的研究是一项很有意义的工作。
The new algorithm based on color hue is put forward to detect the shadow of moving object, and the shadow is detected successfully.
提出了基于颜色色度信息的阴影检测算法，成功地检测出运动物体的阴影。
The term attenuated refers to the dissipation or softening of the shadow as it gets further from the shadow-casting object.
这个削弱的条件提到了阴影的分散或柔化，如果它是从能产生阴影的物体上得到的。
This book shows you how to consider the shape of an object, render light and shadow, and make your drawings more realistic by understanding perspective.
本书为你展示了如何认识对象的形体，光线和阴影，通过对透视的认知使你的画作更为真实。
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.
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。
Software can not only deal with the general profile of the object, but also supports a translucent outline and shadow matting, especially complex hair matting edge.
软件不但可以处理普通物体轮廓，还支持半透明轮廓和阴影的抠图，特别是复杂的毛发边缘抠图。
Moving object detection is the important technology of scene monitoring. The shape of the object is affected mostly by its shadow, which the true object detection is interfered.
运动目标检测是场景监控的核心技术，而目标的阴影在很大程度上影响了目标的形状，干扰了真实目标的检测。
In comparison with the traditional algorithm, it can remove the discontinuous influence of the carrier frequency, object edge, shadow and blind spots.
与传统的条纹相位去包裹方法相比较， 该方法能够消除光载频、物体边缘、阴影和盲点的影响。
By the process of moving area detection, yawp elimination, object detection based on connected region label, shadow elimination, the whole vehicle targets area is obtained.
通过运动区域检测、噪声去除、连通单元标记、目标提取、阴影检测等处理，能获取完整的车辆目标区域。
Beginning with half-past six, he hovered like a shadow about the Thirty-ninth Street entrance, pretending always to be a hurrying pedestrian and yet fearful lest he should miss his object.
从6点半钟开始，他就像个影子似地在三十九街入口处的附近徘徊，总是假装成一个匆匆赶路的行人，可又生怕自己会漏掉要等的目标。
Tip 1: if you go to use many Mr Omni's for an object because you want to create many different specular highlights, you will risk creating a less visible shadow of an object.
提示1：如果你要给一个物体使用大量的MR泛光灯，因为你希望创建大量的高光，物体的阴影将变得不可见。
Experimental results demonstrate the proposed algorithm can effectively detect cast shadow and moving object, and has higher practicability.
实验结果表明，该算法能有效地检测出投射阴影和运动目标，具有较高的实际应用价值。
We do not know if he is seeing the details of the object, or just a shadow or blurry image, but it is a start!
我们不知道他能不能看清物体，或许他只是看到物体的影子或模糊的影像，但这的确是个开始。
When a Beam of light falls on the edge of an object, it is Bent slightly by the contact and causes a Blur at the edge of the shadow of the object.
当一束光照到某物体的边缘时，光不再继续沿直线前进，而要在边缘处少许弯曲，致使物体阴影的边缘变得模糊。
The paper focuses on moving object detection, shadow inhibition and moving object tracking and so on in the single stationary camera environment.
重点研究了静止的单摄像机所拍摄的视频中运动目标的检测，运动目标的阴影抑制以及运动目标跟踪等方面。
The rationale behind Augmented Shadow is that shadow present distorted silhouette of object due to various lighting conditions.
虚影实幕的原理是因应光暗程度，投射出被歪曲的影子。
Another method of shadow removal based on edge information is presented too, which is independent of the direction of shadow, and can effectively remove the cast shadow of a moving object.
针对前景检测时出现的阴影，提出基于边缘信息的阴影消除算法。
Another method of shadow removal based on edge information is presented too, which is independent of the direction of shadow, and can effectively remove the cast shadow of a moving object.
针对前景检测时出现的阴影，提出基于边缘信息的阴影消除算法。
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