Improving the translation parameter estimation of linear algorithms. - Sassan Pejhan; Sundararaj Ragupathi; Robert A. King (J. Vis. Commun. Image Represent., 1991)

Using moments for 3-d Motion parameter Estimation: a Pure Rotation Case. - S. Ragupathi; Robert A. King (J. Circuits Syst. Comput., 1992)

A Fast and Robust Approach for Document Segmentation and Classification. - Han Wang 001; Stan Z. Li; S. Ragupathi (MVA, 1996)

Document segmentation and classification with top-down approach. - Han Wang 001; Stan Z. Li; S. Ragupathi (KES (1), 1997)