Rabbani, H., Vafadust, M. (2009). Using Minimum Mean Squared Error Estimator for Quality Improvement of Abdominal Computerized Tomography Images Based on a Bivariate Laplacian Mixture Model for Complex Wavelet Coefficient. *Nashriyyah -i Muhandisi -i Barq va Muhandisi -i Kampyutar -i Iran*, 7(2), 162-169.