光学仪器, 2017, 39 (1): 18, 网络出版: 2017-04-10
一种分析视频眼镜图像清晰度的新方法
A new method to analyze image clarity of video glasses
工业技术 视频眼镜 光学传递函数 Imatest软件 industrial technology video glasses optical transfer function Imatest software
摘要
依据光学传递函数与级联光学传递函数理论,通过CCD相机拍摄视频眼镜显示的ISO12233分辨率测试图像卡,运用Imatest软件分析视频眼镜中光学成像系统的质量和图像分辨率(SFR)参数。对Google Glass,Epson BT-200,Optinvent ORA-1,奥图科技Cool Glass One以及Raypai的几种视频眼镜进行了测试与分析,获得每一种视频眼镜的图像分辨率调制传递函数(MTF)结果并进行比较。MTF结果与实际视觉观测结果基本相符,表明这种测试方法与Imatest软件分析计算的正确性。
Abstract
Based on the theory of optical transfer function and cascade optical transfer function,we shoot the image of ISO12233 resolution test card,which is shown in the video glasses,by a CCD camera,and use the Imatest software to analyze the quality of the optical imaging system in the video glasses and the image spatial frequency resolution(SFR) parameter.Eight kinds of video glasses,including Google Glass,Epson BT-200,Optinvent ORA-1,AltoTech Cool Glass One,and several models from Raypai,are tested and analyzed,and the modulation transfer function(MTF) of each kind of video glasses is obtained and compared.The MTF results are consistent with the actual visual observations,indicating the validity of the proposed method and the Imatest analysis and calculation.
孙保伟, 张文君, 向望华, 张大伟, 常晓君, 裴增智, 王之凤, 梅培俊, 许键. 一种分析视频眼镜图像清晰度的新方法[J]. 光学仪器, 2017, 39(1): 18. SUN Baowei, ZHANG Wenjun, XIANG Wanghua, ZHANG Dawei, CHANG Xiaojun, PEI Zengzhi, WANG Zhifeng, MEI Peijun, XU Jian. A new method to analyze image clarity of video glasses[J]. Optical Instruments, 2017, 39(1): 18.