List of Articles sedigheh Ghofrani Article 1 - Using Heavy-Tailed Levy Model in Nonsubsampled Shearlet Transform Domain for Ultrasound Image Despeckling Saeed Jafari Sedigheh Ghofrani Journal of Advances in Computer Research , Issue 2 , Year , Spring 2017 Article 2 - A New IRIS Segmentation Method Based on Sparse Representation Mohammad Rajabi Sedigheh Ghofrani Ahmad Ayatollahi Journal of Advances in Computer Research , Issue 1 , Year , Winter 2017