Digital image enhancement for display of bone radiographs

Kelly Rehm; Michael J. Pitt; Theron W. Ovitt; William J. Dallas

doi:10.1117/12.59452

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1 June 1992 Digital image enhancement for display of bone radiographs

Kelly Rehm, Michael J. Pitt, Theron W. Ovitt, William J. Dallas

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Proceedings Volume 1652, Medical Imaging VI: Image Processing; (1992) https://doi.org/10.1117/12.59452
Event: Medical Imaging VI, 1992, Newport Beach, CA, United States

Abstract

We present a solution method for adaptively smoothing magnetic resonance (MR) images while preserving discontinuities. We assume that the spatial behavior of MR data can be captured by a first order polynomial defined at every pixel. The formulation itself is similar to Leclerc's work on piecewise-smooth image segmentation, but we use the graduated non- convexity (GNC) algorithm as an optimizing tool for obtaining the solution. This requires initial values for polynomial coefficients of order greater than zed all three images displayed on laser-printed film. Two radiologists made subjective quality judgments of each film individually and then ranked the trio in terms of quality. The results indicated that the observers preferred ASAHE-processed low-resolution films to both high- and low-resolution unprocessed films.

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Kelly Rehm, Michael J. Pitt, Theron W. Ovitt, and William J. Dallas "Digital image enhancement for display of bone radiographs", Proc. SPIE 1652, Medical Imaging VI: Image Processing, (1 June 1992); https://doi.org/10.1117/12.59452

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