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SeDDaRA
Image Gallery
Quarktet's
blind deconvolution
algorithm, SeDDaRA, has
been named as one of
Advanced
Imaging Magazine's
Solution of the Year by
unanimous decision! The
winning
solution is the removal of
blur from an image of the
background
radiation
of the universe. A portion
of the image and its
restoration appear
below.
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Fig1:
Image of the background
radiation of the universe as
taken by the NASA
Wilkinson Microwave Anistropy
Probe (WMAP)
satellite. The image has been
false-colored to highlight the
contrast.
This
image, together with four images
in four other spectral bands,
allowed
NASA/WMAP scientists
to more accurately define the
age of the universe and the rate
of
expansion.
Run your mouse over the image
to reveal the restored figure.
Fig 2: Using a fractal
image as a model, a
blur function, resembling
a clover-leaf, was extracted
from the image. A
pseudo-inverse filter
removed the blur to sharpen
the image. The image is
cleaner and reveals
greater resolution. We hope
the use of this processing
technique will
enable scientists to achieve
even greater accuracy in
their
calculations.
Image
Courtesy of the
NASA/WMAP Science Team.
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About
the Gallery....
Here
and on the following pages, you will
see more examples of blind
deconvolutions performed using
the
SeDDaRA process. A great advantage of
this technique
is that it can be applied to any data
type, such as consumer
photographs,
medical images, one dimensional
signals, microscopy, and astronomy
images.
For most, the improvement is obvious.
In some cases, the
improvement more subtle. SeDDaRA
removes the blur that is present
in the image (or signal) by extracting
the point spread function (or
impulse
function). Thus, the method returns
only the physical aspects of the
image, and does not create any new
information. This is how the process
differs from a standard edge-enhancing
filters.
If you have viewed other deconvolution
websites, you may have noticed
that the images displayed here are
significantly larger. When we apply
SeDDaRA, we do not hesitate at
processing larger images, and have had
to
crop many of the images on display
here. This is a testament to the
efficiency
of the process. We do, however,
apologize for the longer download
times.
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Fig1: Image of Saturn, taken
by the
Hubble Space Telescope before
the optical correction was
applied in
December
1993. This image has become a
standard image deconvolution
example.
Run your mouse over the
image to reveal the restored
figure.
Fig 2: Restored Image.
Not only is the planet
much cleaner, but if you
look close enough you will
see stars behind
the planet that were not
apparent before.
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Fig1:
A
microscope image of
fission yeast that already
undergone some
processing.
This image was displayed
on several websites
as an example of good
deconvolution.
Run
your mouse over the
image to reveal the
restored figure.
Fig 2: Restoration of the
microscope
image. Even though the
image has already been
processed by more
conventional means, the
image is significantly
enhanced using SeDDaRA.
This
occurs because it is very
difficult to measure or
calculate the exact
blur
function of a system. Many
times, a little help is
needed to see
clearly.
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Quarktet
has contacted the producer of the
fission yeast image about
retrieving
the
original data. To date, no reply
has been received.
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Gallery
Index
1 Gallery Into
2 Home Pics
3 X-rays
4 1-D Signals
5 Astronomy
6 Microscope
7 Misc.
8 Ultrasound
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