title: Estimation of reflectance from camera responses by the regularized local linear model.
abstract: Because of the limited approximation capability of using fixed basis functions, the performance of reflectance estimation obtained by traditional linear models will not be optimal. We propose an approach based on the regularized local linear model. Our approach performs efficiently and knowledge of the spectral power distribution of the illuminant and the spectral sensitivities of the camera is not needed. Experimental results show that the proposed method performs better than some well-known methods in terms of both reflectance error and colorimetric error.
authors.affiliation: Department of Applied Mathematics, South China Agricultural University, Guangzhou 510642, China. zhangwf@scau.edu.cn
authors.forename: Wei-Feng
authors.initials: WF
authors.lastname: Zhang
authors.forename: Gongguo
authors.initials: G
authors.lastname: Tang
authors.forename: Dao-Qing
authors.initials: DQ
authors.lastname: Dai
authors.forename: Arye
authors.initials: A
authors.lastname: Nehorai