Image/video quality enhancement and super-resolution using sparse transformations

摘要

A method and apparatus is disclosed herein for a quality enhancement/super resolution technique. In one embodiment, the method comprises receiving a first version of media at a first resolution and creating a second version of the media at a second resolution higher or equal to the first resolution using at least one transform and adaptive thresholding.

主权项

1. A method comprising:
receiving a first version of media at a first resolution; selecting sub-frames adaptively in an image created by upsampling the first version of the media; creating, with a computer processing system, a second version of the media at a second resolution higher or equal to the first resolution by applying at least one transform and adaptive thresholding to each of the selected sub-frames in the image, wherein the at least one transform is a directionally warped adaptive transform; and wherein the at least one directionally warped adaptive transform is selected based on local edge direction to render the highest quality output for the second version of the media by modulating the adaptive thresholding according to local pixel statistics for pixels at each of the selected sub-frames in the image.