Image reconstruction from low-count positron emission tomography (PET) projection data is
challenging because the inverse problem is ill-posed. Prior information can be used to …

Exploiting sparsity in the image gradient magnitude has proved to be an effective means for
reducing the sampling rate in the projection view angle in computed tomography (CT). Most …

Abstract Since Donoho and Candes et al. published their groundbreaking work on
compressive sampling or compressive sensing (CS), CS theory has attracted a lot of …

计算机断层成像(computed tomography, CT) 技术在医学和工业无损检测中都具有非常广泛的
应用, CT 重建算法是其中的核心, 而不完全角度重建问题则是实际应用中重建算法研究领域的 …

Three-dimensional (3D) computed tomography (CT)–like reconstructions of patients based
on image data acquired in the interventional suite during an intervention first became …

To improve the spatial resolution of the image reconstructed by the conventional total
variation (TV) algorithm, we propose a prior image based anisotropic edge guided TV …

Background Patients with a pericardial effusion can have a pendulum-like movement of the
heart. No reports associate the presence of pericardial fluid with coronary CT angiography …

Abstract Magnetic Resonance Imaging (MRI) has been widely used in cancer treatment
planning, which takes the advantage of high-resolution and high-contrast provided by it. The …

Exploiting sparsity in the image gradient magnitude has proved to be an effective means for
reducing the sampling rate in the projection view angle in computed tomography (CT). Most …

Iterative image reconstruction methods have been proposed in computed tomography to
address two major challenges: one is to reduce radiation dose while maintaining image …