Laplacian and orthogonal wavelet pyramid decompositions in coarse-to-fine registration. - Ronald L. Allen; Farhad Ahani Kamangar; Ernest M. Stokely (IEEE Trans. Signal Process., 1993)

Automated Gland Segmentation and Classification for Gleason Grading of Prostate Tissue Images. - Kien Nguyen 005; Anil K. Jain 001; Ronald L. Allen (ICPR, 2010)