Optimising optimal image subtraction
نویسندگان
چکیده
منابع مشابه
A Method for Optimal Image Subtraction
We present a new method designed for optimal subtraction of two images with different seeing. Using image subtraction appears to be essential for the full analysis of the microlensing survey images, however a perfect subtraction of two images is not easy as it requires the derivation of an extremely accurate convolution kernel. Some empirical attempts to find the kernel have used the Fourier tr...
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Blended light is an important source of degeneracy in the characterization of mi-crolensing events, particularly in binary-lens and high magnification events. We show how the techniques of image subtraction can be applied to form an image of the blend with the source removed. In many cases, it should be possible to construct images with very high signal-to-noise ratio. Analysis of these images ...
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ژورنال
عنوان ژورنال: Astronomische Nachrichten
سال: 2007
ISSN: 0004-6337,1521-3994
DOI: 10.1002/asna.200610703