Photometric and Geometric Measurements based on Multi-primary Image Projector
Photometric and Geometric Measurements based on Multi-primary Image Projector
复制标题
基于多基色图像投影仪的光度和几何测量
DOI：
10.1109/cvcs.2015.7274879
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
D.Irie and T.Horiuchi
中科院分区：
文献类型：
--
作者：
K.Hirai;D.Irie and T.Horiuchi
本文介绍了基于多基色投影仪的光度测量和几何测量方法。该投影机主要配置有一光源组件及一影像投射组件。光源可以维斯计算机编程，可以再现任何光谱曲线。空间图像由数字反射镜器件（DMD）芯片投射，该芯片提供对光源光谱强度的快速控制。多原色图像通过多路复用具有各种原色光源光谱的时序2D图像图案投影来再现。在本文中，我们还将投影仪应用于光度测量和几何测量。第一个应用，光度测量，是一个拍摄型相机光谱灵敏度测量中，我们重现彩虹投影的测量。第二个应用是投影彩色图像的几何校准，其中我们测量投影仪和摄像机之间的几何关系的基础上可见和不可见的图像投影。
This paper presents photometric and geometric measurement methods based on a multi-primary image projector. The projector is primarily configured with a light source component and an image projection component. The light source, which can be programmed vis a computer, can reproduce any spectral curve. Spatial images are projected by a digital mirror device (DMD) chip that provides rapid control of the intensity of the light source spectra. The multi-primary images are reproduced by multiplexing the time-sequential 2D image pattern projections with various primary illuminant spectra. In this paper, we also apply the projector to photometric and geometric measurements. The first application, photometric measurement, is to one-shot-type camera spectral sensitivity measurement in which we reproduce rainbow projection for the measurement. The second application is to geometric calibration of projected color images in which we measure the geometrical relation between the projectors and camera based on visible and invisible image projection.