Aspects of image quality enhancement in security technology

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F08%3A00146064" target="_blank" >RIV/68407700:21230/08:00146064 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Aspects of image quality enhancement in security technology

Popis výsledku v původním jazyce

During last several years we have studied selected techniques for quality enhancement of security images. The first part of paper demonstrates selected results of image enhancement oriented to the improvement of identification threshold. We have tested the impact of image sharpening algorithms on the display readability in presence of noise. The second part deals with elimination of deterministic blurring and composite sensor noise in black & white pictures captured by a CCD/CMOS camera. Such restoration can be done by the MAP (maximal a posteriori probability) criterion based iterative detection network (IDN), that is powered by noise model and contains a number of mutually concatenated functional blocks so-called soft inversions (SISOs). The third part is devoted to the compression of security images by the H.264/AVC codec. The visibility of relevant details in the security images is a crucial issue especially when a very low bit rate is used.

Název v anglickém jazyce

Aspects of image quality enhancement in security technology

Popis výsledku anglicky

During last several years we have studied selected techniques for quality enhancement of security images. The first part of paper demonstrates selected results of image enhancement oriented to the improvement of identification threshold. We have tested the impact of image sharpening algorithms on the display readability in presence of noise. The second part deals with elimination of deterministic blurring and composite sensor noise in black & white pictures captured by a CCD/CMOS camera. Such restoration can be done by the MAP (maximal a posteriori probability) criterion based iterative detection network (IDN), that is powered by noise model and contains a number of mutually concatenated functional blocks so-called soft inversions (SISOs). The third part is devoted to the compression of security images by the H.264/AVC codec. The visibility of relevant details in the security images is a crucial issue especially when a very low bit rate is used.

Druh

D - Stať ve sborníku

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of 42nd Annual 2008 IEEE International Carnahan Conference on Security Technology

ISBN

978-1-4244-1816-9

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

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Název nakladatele

IEEE

Místo vydání

Piscataway

Místo konání akce

Prague

Datum konání akce

13. 10. 2008

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000264043000027