OPT OpenIR  > 月球与深空探测技术研究室
Method for Obtaining Truth Color Values Based on Relative Spectral Power Distribution of Light Source
Alternative Title基于光源相对光谱功率分布的颜色真值获取方法
Wang Hong1,2; Yang Jianfeng1; Xue Bin1; Song Yansong1,2; Xie Peiyue3; XUE Bin (xuebin@opt.ac.cn)
Department月球与深空探测技术研究室
2018
Source PublicationSpectroscopy and Spectral Analysis
ISSN1000-0593
Volume38Issue:3Pages:877-882
Contribution Rank1
Abstract

Chang'E-3panoramic camera is designed for color imaging,and a color calibration has to be performed before the launch of the detector.The first step when calibrating the camera is to obtain the ground truth color values of the samples.The color values measured by the traditional method have some significant deviations with the actual values and differ at the color difference and human visual perception.When the values are used to perform calibration,the color differences are not ideal,and the images have a negative effect on human perception.In this study,the white reference coordinates adopted in transformation matrix between XYZ and sRGB color space are redefined by using the relative spectral power distribution of D65calibration light source.After that,based on the CIE color-computing formula and H.Grassmann color mixing law,the transformation matrix to recalculate RGB color values from XYZ color space is modified.In addition,by means of calculating spectral tristimulus values in sRGB with modified matrix,we give analysis to the factors that caused color distortions.The results of the ground experiment showed that the color differences DE76for cameras A and B after calibration reduced 0.8and 0.73respectively compared with those achieved using traditional method.And when the calibrated matrix is used to correct images taken on lunar surface,color difference reduced 26.50%and 34.47%respectively,and the images have a positive effect on human perception.

KeywordChang'e-3 Truth Color Values Spectral Power Distribution Tristimulus Values Color Calibration
Indexed ByEI ; CSCD
Language中文
WOS Research AreaOptics ; Physics (provided by Clarivate Analytics)
EI Accession Number20183605785356
Citation statistics
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/30166
Collection月球与深空探测技术研究室
Corresponding AuthorXUE Bin (xuebin@opt.ac.cn)
Affiliation1.Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi'an, Shaanxi 710119, China
2.University of Chinese Academy of Sciences, Beijing, 100049, China
3.Xidian University, Xi'an, Shaanxi 710071, China
Recommended Citation
GB/T 7714
Wang Hong,Yang Jianfeng,Xue Bin,et al. Method for Obtaining Truth Color Values Based on Relative Spectral Power Distribution of Light Source[J]. Spectroscopy and Spectral Analysis,2018,38(3):877-882.
APA Wang Hong,Yang Jianfeng,Xue Bin,Song Yansong,Xie Peiyue,&XUE Bin .(2018).Method for Obtaining Truth Color Values Based on Relative Spectral Power Distribution of Light Source.Spectroscopy and Spectral Analysis,38(3),877-882.
MLA Wang Hong,et al."Method for Obtaining Truth Color Values Based on Relative Spectral Power Distribution of Light Source".Spectroscopy and Spectral Analysis 38.3(2018):877-882.
Files in This Item:
File Name/Size DocType Version Access License
Method for Obtaining(2408KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang Hong]'s Articles
[Yang Jianfeng]'s Articles
[Xue Bin]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang Hong]'s Articles
[Yang Jianfeng]'s Articles
[Xue Bin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang Hong]'s Articles
[Yang Jianfeng]'s Articles
[Xue Bin]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Method for Obtaining Truth Color Values Based on Relative Spectral Power Distribution of Light Source.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.