{"title":"Radiometric calibration of eight-channel parallel multi-spectral imaging","authors":"屈亮 Qu Liang, 廖宁放 Liao Ningfang, 董志刚 Dong Zhigang, 杨奇开 Yang Qikai, 吕航 Lü Hang, 董淑雯 Dong Shuwen","doi":"10.3788/GXJS20144003.0240","DOIUrl":null,"url":null,"abstract":"In order to calibrate the eight-channel parallel multi-spectral imaging,the principle of the multi-spectral imaging is introduced.The radiation response of the camera is analyzed.Based on the eight channels and the characteristics of the narrowband filters,a method which takes the G channel output of each digital camera as calibration channel is proposed.Depending on the spectral radiance of the integrating sphere under different color temperatures and exposure time of the camera,the camera's radiation characteristic curve is fit.The results show that the method is accurate and valid. An accurate absolute spectral radiance output of the object is got.The eight channel multi-spectral imaging system′s data processing requirements is met.","PeriodicalId":35591,"journal":{"name":"光学技术","volume":"40 1","pages":"240-244"},"PeriodicalIF":0.0000,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"光学技术","FirstCategoryId":"1089","ListUrlMain":"https://doi.org/10.3788/GXJS20144003.0240","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Physics and Astronomy","Score":null,"Total":0}
引用次数: 0
Abstract
In order to calibrate the eight-channel parallel multi-spectral imaging,the principle of the multi-spectral imaging is introduced.The radiation response of the camera is analyzed.Based on the eight channels and the characteristics of the narrowband filters,a method which takes the G channel output of each digital camera as calibration channel is proposed.Depending on the spectral radiance of the integrating sphere under different color temperatures and exposure time of the camera,the camera's radiation characteristic curve is fit.The results show that the method is accurate and valid. An accurate absolute spectral radiance output of the object is got.The eight channel multi-spectral imaging system′s data processing requirements is met.
光学技术Physics and Astronomy-Atomic and Molecular Physics, and Optics
CiteScore
0.60
自引率
0.00%
发文量
6699
期刊介绍：
The predecessor of Optical Technology was Optical Technology, which was founded in 1975. At that time, the Fifth Ministry of Machine Building entrusted the School of Optoelectronics of Beijing Institute of Technology to publish the journal, and it was officially approved by the State Administration of Press, Publication, Radio, Film and Television for external distribution. From 1975 to 1979, the magazine was named Optical Technology, a quarterly with 4 issues per year; from 1980 to the present, the magazine is named Optical Technology, a bimonthly with 6 issues per year, published on the 20th of odd months.
The publication policy is: to serve the national economic construction, implement the development of the national economy, serve production and scientific research, and implement the publication policy of "letting a hundred flowers bloom and a hundred schools of thought contend".
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