[1] [1] Z. Zeng, M. Pantic, G. Roisman et al.. A survey of affect recognition methods: audio, visual, and spontaneous expressions［J］. IEEE Trans. on PAMI, 2009, 31(1): 39～58

[2] [2] Liu Ruian. Study on Eye Gaze Tracking Using One Camera［D］. Tianjin: Tianjin University, 2007. 16～17

[3] [3] Guojian Shao, Ming Che, Bingyi Zhang et al.. A novel simple 2D model of eye gaze estimation［C］. 2010 2nd International Conference on Intelligent Human-Machine Systems and Cybernetics(IHMSC), 2010, 300～304

[4] [4] Zhiwei Zhu, Qiang Ji. Novel eye gaze tracking techniques under natural head movement ［J］. IEEE Trans. Biomedical Engineering, 2007, 54(12): 2246～2260

[5] [5] J. J. Kang, M. Eizenman, E. D. Guestrin et al.. Investigation of the cross-ratios method for point-of-gaze estimation［J］. IEEE Trans. Biomedical Engineering, 2008, 55(9): 2293～2302

[6] [6] E. D. Guestrin, M. Eizenman. Remote point-of-gaze estimation with single-point personal calibration based on the pupil boundary and corneal reflections［C］. 2011 24th Canadian Conference on Electrical and Computer Engineering, 2011, 000971

[7] [7] Jixu Chen, Qiang Ji. 3D gaze estimation with a single camera without IR illumination［C］. 19th International Conference on Pattern recognition, 2008, 1～4

[8] [8] M. Reale, T. Hung, L. Yin. Viewing direction estimation based on 3D eyeball vonstruction for HRI［C］. 2010 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2010, 24～31

[9] [9] Wen Zhang, Taining Zhang, Shengjiang Chang. Eye gaze estimation from the elliptical features of one iris［J］. Opt. Eng., 2011, 50(4): 0470031

[10] [10] Jing Xie, Xueyin Lin. Gaze direction estimation based on natural head movements［C］. Fourth International Conference on Image and Graphics, 2007. 672～677

[11] [11] Zhang Qiong, Wang Zhiliang, Chi Jiannan et al.. Calibration for gaze tracking system based on stereo cameras and plane mirror［J］. Acta Optica Sinica, 2011, 31(4): 0415002

[12] [12] E. D. Guestrin, M. Eizenman. General theory of remote gaze estimation using the pupil center and corneal reflections［C］．IEEE Trans. Biomedical Engineering, 2006, 53(6): 1124～1132

[13] [13] Jiang Guangwen, Chao Zhichao, Fu Sihua et al.. High-accurate camera calibration technique based on controllable rotation［J］. Acta Optica Sinica, 2010, 30(5): 1308～1314

[14] [14] Zhu Jia, Li Xingfei, Xu Yingxin. Camera calibration technique based on active vision［J］. Acta Optica Sinica, 2010, 30(5): 1297～1303

[15] [15] Huo Ju, Yang Wei, Yang Ming. A self-calibration technique based on the geometry property of the vanish point［J］. Acta Optica Sinica, 2010, 30(2): 465～472

[16] [16] Xiang Zhiyu, Sun Bo. Mirror pose self-calibration method for catadioptric camera system［J］. Acta Optica Sinica, 2012, 32(4): 0415001

[17] [17] Zhengyou Zhang. A flexible new technique for camera calibration［J］. IEEE Trans. Pattern Analysis and Machine Intelligence, 2000, 22(11): 1330～1334

[18] [18] H. Kubota, M. Takeshi, H. Saito. 3D head pose tracking using a particle filter with nose template matching［J］. IEEE Trans. Electronics, Information and Systems, 2008, 128(9): 1447～1454

[19] [19] K. Berthold, P. Horn. Closed-form solution of absolute orientation using unit quaternions［J］. J. Opt. Soc. Am. A, 1987, 4(4): 629～642

[20] [20] Sun Nan, Zhang Liyan, Ye Nan et al.. Calibration of binocular stereo measurement system based on calibration cross［J］. Acta Optica Sinica, 2012, 32(4): 0412001