Improving image quality of super-resolution with total variation regularization and shock filter

The need for super-resolution technology increases with increasing sizes of display devices. In this paper, we propose a super-resolution system that combines a total variation filter and a shock filter, which is a non-linear filter, to emphasize the edges in images and to obtain high-resolution images in a short time. In this study, we improved the performance of the shock filter to obtain higher quality images. We consider this system to be a practical solution, especially for the super-resolution of video signals for devices, such as HDTV receivers and PCs with 4K-pixel display panels.