Moment invariants in theory and practice. - J. S. Wiejak (Image Vis. Comput., 1983)

Region digitization and boundary estimation. - J. S. Wiejak (Image Vis. Comput., 1983)

Convolution with separable masks for early image processing. - J. S. Wiejak; Hilary Buxton; Bernard F. Buxton (Comput. Vis. Graph. Image Process., 1985)