An Overview of SR Techniques Applied to Images, Videos and Magnetic Resonance Images

In this paper, we have summarized the necessary statistical theory behind an image reconstruction, and it discusses the idea of super resolution as an inverse problem. Moreover, it presents the various contributions of various techniques to improve spatial resolution of images, video, and magnetic resonance images using super resolution methods. Subsequently, it portrays the major findings pertaining to the study. Additionally, we give a glimpse of the numerous factors influencing the performance of super resolution.