@article {12599,
	title = {Face and Gesture Recognition-Appearance Characterization of Linear Lambertian Objects, Generalized Photometric Stereo, and Illumination-Invariant Face Recognition},
	journal = {IEEE Transactions on Pattern Analysis and Machine Intelligence},
	volume = {29},
	year = {2007},
	month = {2007///},
	pages = {230 - 245},
	author = {Zhou,S. K and Aggarwal,G. and Chellapa, Rama and Jacobs, David W.}
}
