Title of article :
An outflow from the nebula around the LBV candidate S 119
Author/Authors :
Bomans، D. J. نويسنده , , Weis، K. نويسنده , , Duschl، W. J. نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Abstract :
We outline digital implementations of two newly developed multiscale representation systems, namely, the ridgelet and curvelet transforms. We apply these digital transforms to the problem of restoring an image from noisy data and compare our results with those obtained via well established methods based on the thresholding of wavelet coefficients. We show that the curvelet transform allows us also to well enhance elongated features contained in the data. Finally, we describe the Morphological Component Analysis, which consists in separating features in an image which do not present the same morphological characteristics. A range of examples illustrates the results.
Keywords :
stars , Evolution , Individual , S 119 , mass-loss , ISM , jets and outflows , Bubbles
Journal title :
Astronomy and Astrophysics
Journal title :
Astronomy and Astrophysics