Object Recognition Using a Multichannel Vision System

1.表面反射模型的分析首先，提出了两种类型的二色反射模型，用于表示由热染料升华，喷墨，墨粉和银卤化物四种打印机打印的各种硬拷贝对象的表面光谱反射率。接下来，我们提出了一个实验装置和一套计算确定的表面反射模型的各种参数。该仪器包括一个照明系统，以发射平行光束，测角旋转工作台，和一个视觉系统与六个光谱通道。相机数据被用来估计各种参数，如光谱反射率，光源光谱，表面粗糙度，体界面强度比，折射率.使用多通道视觉系统的目标识别首先，我们提出了一个多通道成像系统和算法，用于识别自然场景中的物体的表面光谱反射率的基础上。该成像系统由液晶显示管和液晶显示管组成， ...更多信息 一台单色CCD照相机和一台个人电脑。提出了从光谱图像数据估计光源光谱功率分布和表面光谱反射率的光谱函数的算法。接下来，我们提出了一种用于识别原始电路板上的对象材料的方法。我们已经开发了一个多通道相机系统，用于观察微小物体。根据不同光照几何条件下反射率的差异，可以区分金属和金属.利用多通道视觉系统记录和绘制艺术画我们提出了一种只利用物体表面光谱反射率数据记录和绘制艺术画的方法。一个多通道相机系统，具有六个固定波段的光谱通道，用于光谱成像。首先，描述用于估计粗糙表面的体反射分量的光谱反射率的方法。然后提出了一种实用的图像绘制方法。结果，使用针对三个照明方向获得的反射率数据来绘制从任何方向照明的艺术绘画对象的图像。少

1. Analysis of surface reflection modelsFirst, two types of dichromatic reflection models are proposed for representing the surface-spectral reflectances of a variety of hard copy objects printed by four printers of thermal dye-sublimation, ink jet, toner, and silver halide. Next, we present an experimental apparatus and set of calculations for determining various parameters of the surface reflection model. The apparatus consists of a lighting system to emit parallel beams, a goniometric rotating table, and a vision system with six spectral channels. The camera data are used to estimate various parameters such as spectral reflectance, illuminant spectrum, surface roughness, ratio of body to interface intensity, and index of refraction.2. Object recognition using a multichannel vision systemFirst, we propose a multichannel imaging system and algorithms for identifying objects in a natural scene based on surface-spectral reflectances. The imaging system is composed of a liquid-crystal tu … More nable filter, a monochrome CCD camera, and a personal computer. Algorithms are presented for estimating both spectral functions of the illuminant spectral-power distribution and surface-spectral reflectance from the spectral image data. Next, we propose a method for identifying object materials on a raw circuit board. We have developed a multichannel camera system for observing tiny objects. We can distinguish metals and dielectrics based on the difference of reflectance in changing illumination geometries.3. Recording and rendering of art paintings by using a multichannel vision systemWe propose a method for recording and rendering of art paintings using only spectral reflectance data of the object surfaces. A multichannel camera system with six spectral channels of fixed wavelength bands is used for spectral imaging. First, a method for estimating spectral reflectance for body reflection component of a rough surface is described. Next a method is proposed for practical image rendering. As a result, the image of an art painting object illuminated from any direction is rendered using the reflectance data obtained for three illumination directions. Less