In this paper, its historical development is at first outlined, followed by a detailed review on the main matting technologies, including blue screen matting, natural image matting, as well as some extended technologies of matting on image, such as environment matting, shadow matting, and video matting.
回顾了该技术的历史发展过程,包括光学场景抽取、蓝屏抠图和图像合成技术,重点介绍了数字蓝屏抠图、自然图像抠图以及数字抠图技术的扩展和应用,如环境抠图、阴影抠图、视频抠图等,并对这几种技术的局限性以及发展方向做了简要的说明。
Algorithm of real-time soft shadows based on shadow maps;
一种基于阴影图的实时软阴影算法
Variance shadow maps algorithm adopts a probability method to estimate the up-bound of the probability of a pixel falling in shadow,it effectively reduces the aliasing in traditional shadow maps algorithm by filtering the shadow maps themselves.
方差阴影图算法使用概率的方法计算像素被遮挡的上限概率,通过对深度图滤波的方法来有效地减少阴影图算法中的走样问题,但在深度比较复杂的场景中方差阴影图算法会出现光渗现象,即在应该是阴影的区域却有了亮度。
A real time method of rendering fake soft shadows based on shadow map
一种基于阴影图的实时伪软阴影生成方法
This method combines the strengths of shadow maps and shadow volumes.
该算法将阴影图和阴影体算法相结合,先通过阴影图绘制出阴影的轮廓,再利用阴影体算法更新轮廓处象素的模板缓冲值。
Based on shadow map algorithm,an improved project-distance based soft shadow generating algorithm is proposed.
利用显卡的可编程性实现了软阴影的生成,并且生成的阴影根据距离物体远近呈现出不同的模糊程度,在视觉上改进了阴影图生成的阴影效果,使之更加符合现实中的光照情况。
A real time method of rendering fake soft shadows based on shadow map
一种基于阴影图的实时伪软阴影生成方法
Drag to add a colored 3-D block with shaded pattern.
通过拖动添加带阴影图案的彩色三维块。
Furthermore, the computational shadowgraph images were plotted based on the numerical results and relevant computational flow imaging( CFI) methods.
根据计算结果和相关的计算流动技术(FI)绘制了计算阴影图。
variegate with different colors, shades, or patterns.
用不同的颜色阴影或图案使多样化。
(of pictures) not having shadow represented.
（指图画）没有表现出来的阴影。
unshaded drawings resembling cartoons.
像卡通画一样没有阴影的图画。
A Shadow Elimination Algorithm in Moving Insect Image Segmentation
昆虫运动图像分割中的阴影消除算法
Drag onto the page, then right-click the shape to choose shading options.
拖到绘图页上，然后右击该形状可选择阴影选项。
Sun and shodow made the landscape a kaleiodoscope of color and pattern.
阳光和阴影使风景的颜色和图案千变万化。
Plato All shit is a shadow of the Ideal Shit.
柏拉图:所有的大便都是理型大便的阴影。
a monochrome picture made by using several different shades of the same color.
一种颜色的几种不同的阴影制作的黑白图片。
Research on Shadow Detection Techniques for Moving Vehicles in Video Sequences;
基于视频图像的车辆阴影检测方法研究
SAR IMAGE RECOGNITION BASED ON MULTI-ASPECT OF SHADOW INFORMATION
基于阴影信息的多视角SAR图像识别(英文)
Shadow extraction based on layered reactive agents in remote sensing optical images
基于层次反应型agent的可见光遥感图像阴影提取
A SAR image shadow region segmentation method and evaluation metrics
SAR图像阴影区域分割技术及其评估准则
Shadow removal and information recovery for remote sensing images of lunar surface
月球表面遥感图像阴影消除及其信息恢复研究
Object Detection Based on Graph Cuts and Shadow Elimination
基于图切割和阴影抑制的目标检测算法
This is the concept of the scene, a very rough line drawing with simple shading.
下图是场景的构思图，都是些简单的线条再加上简单的阴影。