Smoothing of astronomical images with Poisson distribution

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F17%3A43913181" target="_blank" >RIV/60461373:22340/17:43913181 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21230/17:00315364

Result on the web

<a href="http://spie.org/Publications/Proceedings/Paper/10.1117/12.2274121" target="_blank" >http://spie.org/Publications/Proceedings/Paper/10.1117/12.2274121</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2274121" target="_blank" >10.1117/12.2274121</a>

Result language

angličtina

Original language name

Smoothing of astronomical images with Poisson distribution

Original language description

Images obtained from an astronomical digital camera are of integer nature as event counters in every pixel of its image sensor. The quality of the captured images is influenced mostly by the camera characteristics and photon noise caused by natural random fluctuation of observed light. We suppose the image pixel intensity as a mean value of the signal with Poisson distribution. The application of maximum likelihood method with image gradient regularization leads to variational task in discrete formulation. This variational task has only one unique solution on which the novel numerical method of image smoothing is based. The performance of the proposed smoothing procedure is tested using real images obtained from the digital camera in Meteor Automatic Imager and Analyzer (MAIA).

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20200 - Electrical engineering, Electronic engineering, Information engineering

Project

<a href="/en/project/GA17-05840S" target="_blank" >GA17-05840S: Multicriteria Optimization of Shift-Variant Imaging System Models</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings of SPIE Volume 10396 Applications of Digital Image Processing XL

ISBN

978-1-5106-1249-5

ISSN

0277-786X

e-ISSN

1996-756X

Number of pages

6

Pages from-to

"103962V-1"-"103962V-6"

Publisher name

SPIE Society of Photo-Optical Instrumentation Engineers

Place of publication

Washington

Event location

San Diego

Event date

Aug 7, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000418443700082