基于双色反射模型的柱状体类物体光谱分布特征研究

Pixel Distribution Characteristics of Color Columnar Objects Based on Dichromatic Reflection Model

研究彩色柱状体类物体在最大色度-强度空间的图像像素分布特征,提出了通过双色反射模型提取图像反射成分的方法.采用理论分析和实践验证相结合的方法,以Matlab为平台设计程序,得出柱状体类物体图像在最大色度-强度空间像素的分布,阐明柱状体类物体图像像素的最大色度和强度之间的关系,提出了有效分离图像中高光像素和漫射像素的方法.研究表明,彩色柱状体类物体图像的高光像素和漫射像素的分布规律不同,可以通过拟合直线将二者有效分离,还可获得图像的本体颜色及光源颜色信息,在计算机视觉领域具有很好的理论及应用价值.

The pixel distribution characteristics of the color columnar objects in maximum chromaticity-intensity space wasstudied.A method was put forward to extract the constituents of reflection by the Dichromatic Reflection Model.Using Matlabplatform to design programs and through theoretical analysis and practical verification,the pixels distribution of objectsin maximum color image pixel intensity space was got,which clarified the relationship between the columnar body imagepixel maximum color and intensity,and then an effective technique for separating specular pixels and diffuse pixels in theimage was put forward.Studies have shown that the color columnar object images’highlight pixels and diffuse pixels havedifferent distribution regularities,and can be effectively separated through the fitted line in the color space.Obtaining theinformation of the intrinsic color image and the lighting source of the scene has great value in theory and application forcomputer vision research.