@inproceedings{cca097f42ad24c1281eaf49aea40a49b,
title = "Key frame-based video super-resolution using bi-directional overlapped block motion compensation and trained dictionary",
abstract = "This paper presents a video super-resolution algorithm to interpolate an arbitrary frame in a low resolution video sequence from sparsely existing high resolution key pictures. Firstly, hierarchical motion estimation is performed between the input and the key low resolution frames on a patch basis. If motion-compensated error is small, an input LR patch is super-resolved by bi-directional overlapped block motion compensation. Otherwise, the input patch is spatially super-resolved using the dictionary which is learned from the key low resolution and its corresponding high resolution pictures beforehand. Finally, possible blocking artifacts between a motion-compensated patch and a spatially super-resolved patch are concealed using a specific de-blocking process. Experimental results show that the proposed algorithm provides significantly better subjective visual quality as well as objective quality than previous interpolation algorithms.",
keywords = "Bi-directional overlapped block motion-compensation, Dictionary, Hierarchical motion estimation, Key pictures, Super-resolution, Training",
author = "Song, \{Byung Cheal\} and Jeong, \{Shin Cheal\} and Yanglim Choi",
year = "2010",
doi = "10.1109/IPTA.2010.5586726",
language = "English",
isbn = "9781424472482",
series = "2010 2nd International Conference on Image Processing Theory, Tools and Applications, IPTA 2010",
pages = "181--186",
booktitle = "2010 2nd International Conference on Image Processing Theory, Tools and Applications, IPTA 2010",
note = "2010 2nd International Conference on Image Processing Theory, Tools and Applications, IPTA 2010 ; Conference date: 07-07-2010 Through 10-07-2010",
}