2008 IEEE Conference on Computer Vision and Pattern Recognition (2008)
Anchorage, AK, USA
June 23, 2008 to June 28, 2008
Jian Sun , Xi¿an Jiaotong University, China
Jian Sun , Microsoft Research Asia, Beijing, China
Zongben Xu , Xi¿an Jiaotong University, China
Heung-Yeung Shum , Microsoft Research Asia, Beijing, China
In this paper, we propose an image super-resolution approach using a novel generic image prior — gradient profile prior, which is a parametric prior describing the shape and the sharpness of the image gradients. Using the gradient profile prior learned from a large number of natural images, we can provide a constraint on image gradients when we estimate a hi-resolution image from a low-resolution image. With this simple but very effective prior, we are able to produce state-of-the-art results. The reconstructed hi-resolution image is sharp while has rare ringing or jaggy artifacts.
Jian Sun, Zongben Xu, Heung-Yeung Shum and Jian Sun, "Image super-resolution using gradient profile prior," 2008 IEEE Conference on Computer Vision and Pattern Recognition(CVPR), Anchorage, AK, USA, 2008, pp. 1-8.