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Solar Image Processing: A Multiscale View. C. Alex Young NASA/GSFC. UCLA - IPAM (January 28, 2004). Outline. My motivations - where I got interested in multiscale methods. A gallery of data. A standard analysis - that surprised me. My approach - an attempt at something better.
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Solar Image Processing: A Multiscale View • C. Alex Young • NASA/GSFC UCLA - IPAM (January 28, 2004)
Outline • My motivations - where I got interested in multiscale methods. • A gallery of data. • A standard analysis - that surprised me. • My approach - an attempt at something better. • Some other problems.
Outline • My motivations - where I got interested in multiscale methods. • A gallery of data. • A standard analysis - that surprised me. • My approach - an attempt at something better. • Some other problems.
The high energy sun. 20 Jan 2000 Solar Flare BATSE and COMPTEL (yellow) 1-30 MeV image and 100 keV /1-30 MeV lightcurves
The EUV/radio sun. Flare in EUV 171 Å pass band Flare in radio
Outline • My motivations - where I got interested in multiscale methods. • A gallery of data. • A standard analysis - that surprised me. • My approach - an attempt at something better. • A suggestion by J. Starck • Some other problems.
The outer corona seen in white-light by LASCO C2 2-15 solar radii
Outline • My motivations - where I got interested in multiscale methods. • A gallery of data. • A standard analysis - that surprised me. • My approach - an attempt at something better. • Some other problems.
Images at the time of the first brightening in the TRACE movie. (Gallagher 2003) Top panels: TRACE 195 Å difference images created by subtracting each image from a frame taken at 00:42:30 UT. Bottom panels: LASCO C2 and C3 images showing the similar morphology of the eruption as it propagates away from the solar surface.(Gallagher 2003)
Outline • My motivations - where I got interested in multiscale methods. • A gallery of data. • A standard analysis - that surprised me. • My approach - an attempt at something better. • Some other problems.
scale = 2 scale = 4 scale = 8 scale = 16
A set of edges from 00:46:34 UT to 01:01:58 UT at 2 scales • The top image shows the 30 multiscale edges at scale 8 (green) and 16 (red) over the image at 00:46:34 UT. • The bottom images zoom in on the fronts.
Outline • My motivations - where I got interested in multiscale methods. • A gallery of data. • A standard analysis - that surprised me. • My approach - an attempt at something better. • Some other problems.
Sunspot Classification Multifractal measure ? Shapelets ?
EIT Calibration calibration lamp for flat field and filter grid. Wavelets, Ridgelets, and Curvelets representation?