阵列相机多光谱图像采集技术  

Multi-spectral Image Acquisition Technology Based on Camera Array

作　　者：孙振[1] 冉鑫[1] 应士君[1] 

机构地区：[1]上海海事大学,上海200135

出　　处：《计算机与现代化》2012年第4期175-178,191,共5页Computer and Modernization

基　　金：国家自然科学基金资助项目(51109128)

摘　　要：过去几年里,开展了大量的多光谱图像采集领域的研究工作,但主要采用的是轮盘变换式的多光谱图像采集系统。近来,一种新的多光谱图像采集方法被提出,基于阵列相机延伸范围来形成多个通道,因此引入多光谱阵列相机的概念。本文构造基于阵列相机的多光谱图像采集系统。该阵列相机采用12个大恒DH-HV1300FM型相机,11个镜头装有波长不同的滤光片。本文结合阵列相机多通道数的优势,提出一种光谱反射率重建算法,能够可靠并有效地重建场景的光谱反射率。仿真实验结果验证了该系统的有效性。In the past few years there has been a significant volume of research work carried out in the field of multispectral image acquisition.The most of focus is a type of multispectral image acquisition systems that usually requires multiple subsequent shots.Recently,an alternative approach for multispectral image acquisition has been proposed;based on an extension of the camera array,it produces more than three channels.This paper introduces the concept of multispectral camera array（MCA）,develops an eleven-shot multispectral image capturing system,consisting of twelve DH-HV1300FM cameras and eleven interference filters with different wavelengths.Combining with the advantages of multiple channels for multispectral camera array（MCA）,an algorithm to reconstruct the scene spectral reflectance is proposed.Finally the recovered spectral measurements are used to recover the continuous spectral reflectance for each scene point by using a linear model for spectral reflectance.

关 键 词：阵列相机 光谱反射率 多光谱 滤光片 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]