Title
Single image super-resolution via sparse KPCA and regression
Abstract
In this paper, we present a new approach to single image super-resolution (SR). The basic idea is to learn a dictionary which can capture the high-order statistics of high-resolution (HR) images. This is of central importance in image SR application, since the high-order statistics play a significant role in the reconstruction of HR image structure. Kernel principal component analysis (KPCA) is used to learn such a dictionary. To reduce the time complexity of learning and testing for KPCA, a sparse solution is adopted. Meanwhile, kernel ridge regression is employed to relate the input low-resolution (LR) image patches and the HR coding coefficients. Experimental results show that the proposed method can effectively reconstruct image details and outperform state-of-the-art algorithms in both quantitative and visual comparisons.
Year
DOI
Venue
2014
10.1109/ICIP.2014.7025427
ICIP
Keywords
Field
DocType
kernel principal analysis (KPCA),pre-image,regression,Super-resolution (SR)
Computer vision,Regression,Pattern recognition,Computer science,Kernel ridge regression,Kernel principal component analysis,Coding (social sciences),Artificial intelligence,Image structure,Time complexity,Superresolution
Conference
ISSN
Citations 
PageRank 
1522-4880
1
0.37
References 
Authors
0
4
Name
Order
Citations
PageRank
Tingrong Yuan1182.64
WM222134.28
Zhou37811.31
QM446472.05