deconvolution

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deconvolution

(dee-kon-vŏ-loo -shŏn) The recovery (‘unsmearing’) of data, such as an astronomical image, that has been convolved (see convolution) with a response function, such as a telescope beam. The process is nearly always carried out on a computer using one or more deconvolution algorithms (see aperture synthesis). It can greatly improve the fidelity of images, particularly when the convolving function is well defined. The process is used extensively in aperture synthesis to remove artifacts generated by the synthesized beam and greatly improved the early performance of the Hubble Space Telescope.

Collins Dictionary of Astronomy © Market House Books Ltd, 2006

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Lee, "Handling Outliers In Non-Blind Image Deconvolution", Computer Vision (ICCV), 6-13 Nov.

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Salazar, "Automatic simultaneous measurement of phase velocity and thickness in composite plates using iterative deconvolution", NDT&E Int., vol.

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The presence of noise affects the image but to a lesser extent than for simpler deconvolution method like Wiener deconvolution.

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The convolution performs as an encoder that maps multiple input activations to a single output activation within a filter window, whereas deconvolution corresponds to a decoder that associates a single input activation with multiple outputs, as show in Fig.

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3D Euler Deconvolution. Reference [28] proposed a technique for analyzing magnetic profiles based on Euler's relation for homogeneous functions.

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Deconvolution is rooted mainly in work done by Norbert Wiener of MIT.

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The proposed method consists of Human visual system(HVS),which is based on three characteristics: maximum likelihood estimation, blind deconvolution ,linear transformation.

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The deconvolution of this and all the other spectra was carried out with the XPSPEAK software, using a Shirley background correction.

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