Nonlinear feature extraction for perceptually-based low-bit-rate image coding. - Michael L. Lightstone; Stefan Thurnhofer; Sanjit K. Mitra (VCIP, 1993)

Adaptive interpolation of images with application to interlaced-to-progressive conversion. - Stefan Thurnhofer; Michael L. Lightstone; Sanjit K. Mitra (VCIP, 1993)

A general framework for quadratic Volterra filters for edge enhancement. - Stefan Thurnhofer; Sanjit K. Mitra (IEEE Trans. Image Process., 1996)