Okutomi Lab.

Super-Resolution

Example of Super-resolution

The left side image is the result of expansion by bilinear interpolation. The right side image is the result of expansion by zero-order interpolation.
Before super-resolution

Color-demosicing by bilinear interpolation.

Color-demosicing by bilinear interpolation & expansion by zero-order interpolation.

Color-demosicing by an edge-preserving method & expansion by bi-cubic interpolation.

In the images above, the characters are not recognizable.
However, those becomes possible if the super-resolution algorithm which we develped is applied, as shown below.
After super-resolution

Using 1 frame	Using 2 frames	Using 5 frames
Using 10 frames	Using 50 frames	Using 100 frames

Other examples

Observed images	Super-resolution images

Related Papers

Fast and Robust Video Super-Resolution
Dabi Wei, Masayuki Tanaka and Masatoshi Okutomi
the 12th IEEE International Conference on Computer Vision (ICCV2009) (Demo), September, 2009
Robust and Accurate Estimation of Multiple Motions for Whole-Image Super-Resolution
Masayuki Tanaka, Youichi Yaguchi and Masatoshi Okutomi
Proceedings of 15th IEEE International Conference on Image Processing (ICIP2008), pp.649-652, October, 2008
Robust and Precise Registration for Super-Resolution in the Presence of Multiple Motions
Youichi Yaguchi, Masayuki Tanaka and Masatoshi Okutomi
MIRU International Workshop on Computer Vision 2008 (MIRU-IWCV2008), July, 2008
Super-Resolution from Image Sequence under Influence of Hot-Air Optical Turbulence
Masao Shimizu, Shin Yoshimura, Masayuki Tanaka and Masatoshi Okutomi
Proceedings of IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR2008), pp.1-8, June, 2008
A Raw Data Compression for Digital Cameras with a Color Filter Array
Masayuki Tanaka and Masatoshi Okutomi
Proceedings of IS&T/SPIE 19th Annual Symposium Electronic Imaging (EI2008), January, 2008
Image Super Resolution and Related Techniques
Masatoshi Okutomi
Proceedings of The 14th International Display Workshops (IDW07) (invited talk), pp.323-324, December, 2007
Near-real-time Video-to-video Super-resolution
Masayuki Tanaka and Masatoshi Okutomi
Proceedings of 8th Asian Conference on Computer Vision (ACCV2007), Demo-A pp.1, November, 2007
Reconstruction of a High Dynamic Range and High Resolution Image from a Multisampled Image Sequence
Harald Bergur Haraldsson, Masayuki Tanaka and Masatoshi Okutomi
Proceedings of 14th International Conference on Image Analysis and Processing (ICIAP2007), pp.303-308, September, 2007
Introduction of Our Researches on Super Resolution
M.Okutomi
MIRU International Workshop on Computer Vision (invited talk), July, 2007
A Fast Algorithm for Reconstruction-Based Superresolution and Evaluation of Its Accuracy
Masayuki Tanaka and Masatoshi Okutomi
Systems and Computers in Japan, Vol.38, No.7, pp.44-52, June, 2007
Super-Resolution Using a Multi-Mixture Imaging System
M.Tanaka and M.Okutomi
Proceedings of International Conference on Image Processing (ICIP2006), pp.1725-1728, October, 2006
A Fast MAP-Based Superresolution Algorithm for General Motion
M.Tanaka and M.Okutomi
Proc. of SPIE-IS&T Electronic Imaging 2006, SPIE Vol. 6065-49, pp. 1-12, 2006.
Color Super-Resolution using Hand-Held Camera
M.Tanaka and M.Okutomi
International Conference on Instrumentation, Control and Information Technology(SICE Annual Conference 2005)，pp.2096-2100, 2005.
Theoretical Analysis on Reconstruction-Based Super-Resolution for an Arbitrary PSF
M. Tanaka and M. Okutomi
Proceedings of IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR2005)，Vol.II，pp.947-954，June，2005.
Direct Super-Resolution and Registration Using Raw CFA Images
Goto and Masatoshi Okutomi
Proceedings of IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR2004)，Vol.II，pp.600-607，June，2004.
Super-Resolution under Image Deformation
Shimizu, Takahiro Yano and Masatoshi Okutomi
Proceedings of 17th International Conference on Pattern Recognition (ICPR2004)，August, 2004.
Color Super Resolution from a Single-CCD
Tomomasa Gotoh and Masatoshi Okutomi
CD-ROM Proceedings of The IEEE Workshop on Color and Photometric Methods in Computer Vision, 2003.