Title
Multi-frame image super resolution based on sparse coding
Abstract
An image super-resolution method from multiple observation of low-resolution images is proposed. The method is based on sub-pixel accuracy block matching for estimating relative displacements of observed images, and sparse signal representation for estimating the corresponding high-resolution image, where correspondence between high- and low-resolution images are modeled by a certain degradation process. Relative displacements of small patches of observed low-resolution images are accurately estimated by a computationally efficient block matching method. The matching scores of the block matching are used to select a subset of low-resolution patches for reconstructing a high-resolution patch, that is, an adaptive selection of informative low-resolution images is realized. The proposed method is shown to perform comparable or superior to conventional super-resolution methods through experiments using various images.
Year
DOI
Venue
2015
10.1016/j.neunet.2015.02.009
Neural Networks
Keywords
Field
DocType
Image super resolution,Multi-frame super-resolution,Sparse coding
Computer vision,Pattern recognition,Neural coding,Adaptive selection,Artificial intelligence,Superresolution,Degradation process,Mathematics,Machine learning
Journal
Volume
Issue
ISSN
66
C
0893-6080
Citations 
PageRank 
References 
12
0.65
28
Authors
3
Name
Order
Citations
PageRank
Toshiyuki Kato1192.10
Hideitsu Hino29925.73
Noboru Murata3855170.36