液晶与显示2018，Vol.33Issue(12)：1008-1018,11.DOI:10.3788/YJYXS20183312.1008
基于多核支持向量回归的光谱反射率重建方法
Spectral reflectance reconstruction based on multi-kernel support vector regression
摘要
Abstract
In the process of spectral reflectance reconstruction by traditional methods, it doesn't take into account of the characteristics of highly dimensional and redundant multi-spectral training data, which results in low reconstruction accuracy, poor learning ability and generalization ability of the reconstruction model.In order to solve such problems, the spectral reflectance reconstruction of multikernel support vector regression was proposed.Firstly, the product of Cauchy kernel function and polynomial kernel function was introduced as multi-kernel function combining with the characteristics of overall situation and part of kernel function, and then the parameters to improve the performance of the model were obtained from the training samples by cut-and-trial.Finally, the multi-kernel support vector regression model was used to reconstruct the reflectance of the test samples, and evaluation was made through spectral error and fitness.The experimental results show that compared with the pseudo-inverse and single-kernel support vector regression, the spectral error of the reconstruction method is reduced by 0.4-0.785, the decision-making coefficient is increased by 2.84-5.27％, and the average fitness coefficient is increased by 2％-3％.In color reproduction, the reconstruction accuracy is high and the chromatic aberration is small, so that it can meet the tolerance range of human vision.关键词
支持向量回归/多核/光谱反射率重建Key words
support vector regression/multi-kernel/spectral reflectance reconstruction分类
数理科学引用本文复制引用
赵丽娟,王慧琴,王可,王展,刘加林,杨蕾..基于多核支持向量回归的光谱反射率重建方法[J].液晶与显示,2018,33(12):1008-1018,11.基金项目
国家自然科学基金青年基金(No.61701388) （No.61701388）
教育部归国留学人员科研扶持项目(No.K05055 （）
住建部科学技术计划(No.2017-K2-014) （No.2017-K2-014）
陕西省科技厅国际合作项目(No.2017KW-036) （No.2017KW-036）
陕西省自然科学基础研究计划(No.2018JM6080) （No.2018JM6080）
西安建筑科技大学青年基金(No.QN1628,No.JC1514) （No.QN1628,No.JC1514）
