A shape descriptor based on new projective invariants. - Zhongxuan Luo; Daiyun Luo; Xin Fan 001; Xinchen Zhou; Qi Jia 001 (ICIP, 2013)

Characteristic Number: Theory and Its Application to Shape Analysis. - Xin Fan 001; Zhongxuan Luo; Jielin Zhang; Xinchen Zhou; Qi Jia 001; Daiyun Luo (Axioms, 2014)

Fiducial Facial Point Extraction Using a Novel Projective Invariant. - Xin Fan 001; Hao Wang; Zhongxuan Luo; Yuntao Li; Wenyu Hu; Daiyun Luo (IEEE Trans. Image Process., 2015)