1. L. B. Wolf; Using Polarization to Separate Reflection Components, Proc. IEEE Computer Society Conf. CVPR'89, pp.363–369 (1989).
2. L. B. Wolf and T. A. Mancini; Liquid Crystal Polarization Camera, Proc. of IEEE Workshop on Application of Computer Vision, pp.120–126 (1992.12).
3. K. Yamada, T. Nakano and S. Yamamoto; A Vision System for Removal of Specular Reflection Component Using a Liquid Crystal, Trans. of IEE Japan, Vol. 113-C, No. 12, pp. 1087–1093 (1993.12).
4. K. Ueda, I. Horiba, K. Ikegaya and F. Ooi; A Detecting Method of Wet Condition on Road Using Image Processing, Trans. of Information Processing Society of Japan, Vol. 35, No. 6, pp. 1072–1080 (1994.02).