摘要
光源的位置和颜色影响到景物在摄像机中的成像,高光(highlight)的出现使一般的分割算法得不到理想的分割结果。文中根据二色反射模型(Dich-romatic Reflectioa Model),将图像分解成两个本征图像(intrinsic image)——本色图像(matte image)和高光图像(highlight image)。本色图像是去掉高光后的图像,反映了景物本身的不变性,不受外部因素(如光源的位置和颜色)的影响。而高光图像是只含有高光的图像,反映了外部因素的影响,有助于确定物体的形状。文中的彩色图像是指单一颜色光照(非单一波长的光照)下的单色物体在彩色CCD 摄像机中成的像。
The position and the color of a light source affect the image ofan object,and ideal results can't be obtained by usual segmentation algorithmdue to the appearence of highlights.The Dichromatic Reflection Model is usedto divide a color image into two intrinsic images——matte image and highl-ight image.The matte image is the original image with the highlights remo-ved,reflecting the invariance of the object and being not affected by theenvironmental factors(such as the position and the color of the light sour-ce);but the highlight image is just an image of highlights,reflecting theenvironmental factors,and providing information for shape from gloss.The color image in this paper refers to that of a monochrome object gene-rated by color CCD camera under monochrome light(not the light with singlewavelength).
出处
《中国空间科学技术》
EI
CSCD
北大核心
1991年第5期25-28,共4页
Chinese Space Science and Technology
关键词
二色反射模型
彩色分解
本征图像
Dichromatic reflection model,Color analysis,Intrinsic image.
