2. Authors
Daniel Glasner
› B.Sc and M.Sc at Tel Aviv University, Israel.
› Reading for a PhD at The Weizmann Institute of
Science, Israel.
› Web - http://www.wisdom.weizmann.ac.il/~glasner/
Shai Bagon
› PhD at The Weizmann Institute of Science, Israel.
› Web - http://www.wisdom.weizmann.ac.il/~bagon/
3. Authors
Michal Irani
› Professor in Computer Science at The Weizmann
Institute of Science, Israel.
› Research Interests - Computer Vision and Video
Information Analysis
› Web - http://www.wisdom.weizmann.ac.il/~irani/
4. The need of Super Resolution
Main approaches of SR
Proposed method
Experimental results of the proposed
method
Outline
6. Generating high resolution image
with more resolving power
using one or more low resolution
images.
› more resolving power – more details
What Is Super Resolution?
7. Multi image super resolution
Example based super resolution
Super Resolution Methods
8. Several images of the same scenery.
Each image will have different
information of the same scenery.
Multi Image Super Resolution
9. Image database with HR/LR image pairs
Replace similar LR patches with
corresponding HR patches.
Example Based Super Resolution
+
LR HR
10. Combine multi image SR with example
based SR
Without use external source
Proposed Approach
11. 5x5 pixel image patches
More than 60% of image patches have 9
or more recurrences within same scale or
in different scales
Patch Redundancy
12. Use patch redundancy in same scale to
model multi image super resolution
problem
Use patch redundancy in different scales
to model example based super
resolution problem
Proposed Method
22. RGB YIQ
Extract Y component (Luminance)
Apply SR to Y component
Use interpolation methods to I and Q
components (Chrominance)
Combine YIQ
Color Images
27. Two main approaches of Super
Resolution
Observation about patch redundancy
Unified approach of Super Resolution
Experimental results
Summery
28. D. Glasner, S. Bagon and M. Irani, "Super-resolution from a single
image," in IEEE 12th International Conference on Computer Vision
(ICCV 2009), Kyoto, Japan, Sep. 29 - Oct. 2, 2009, pp. 349-356.
http://www.wisdom.weizmann.ac.il/~vision/SingleImageSR.html
http://cs.brown.edu/courses/csci1950-g/results/final/pachecoj
References
In the previous case when we using interpolation methods they have no more resolving power than the LR image.How can we have more details than the LR image.
Differencese in angleTime diff
not guaranteed to provide the true (unknown) high resolution details.
Statistically analyzed a large image database to find the redundancy of image patches within the same image
Statistically analyzed a large image database to find the redundancy of image patches within the same image
Statistically analyzed a large image database to find the redundancy of image patches within the same image