مشخصات پژوهش

عنوان	The Second-Order Shannon Total Generalized Variation for Image Restoration
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Total variation Total generalized variation Shannon TV Shannon TGV Image denoising Image deconvolution Primal-dual algorithm Staircase effects
چکیده	In this paper, a Shannon-based second-order TGV (Shannon TGV) is proposed. Shannon first and second- order operators are defined and their corresponding adjoints are investigated leading to design a vari- ational model as an optimization problem. We obtain the dual form of the proposed model and utilize it to formulate imaging problems, i.e., denoising and deconvolution. Moreover, we examine numerically the effectiveness of the proposed scheme in imaging problems and compare the results to the classic total variation (TV), the second-order total generalized variation (TGV) and Shannon total variation. The outcomes confirm that the proposed model retains the advantages of both TGV and Shannon TV in elim- ination of artifacts simultaneously and admit the greater capability of the new model to remove artifacts.
پژوهشگران	علیرضا حسینی (نفر اول)، سهراب بزم (نفر دوم)