New Cubic Cross filter detector for multi beam data recorded with DIDSON acoustic camera

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F09%3A00330233" target="_blank" >RIV/60077344:_____/09:00330233 - 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

New Cubic Cross filter detector for multi beam data recorded with DIDSON acoustic camera

Popis výsledku v původním jazyce

Target detection in data from the DIDSON (dual-frequency identification sonar) is a challenge. Due to high frequency and many narrow beams, the system can take series of acoustic pictures of passing fish. The entire body can be seen, but are often blurred and unclear in individual pictures. It is only when series of pictures are played like a film one can see that the target actually is a swimming fish. Hence, a good target detector should not be based on individual frames, but on using series of pictures. The Cross filter detector was originally designed for single, dual and split beam systems, to detect targets under very low signal to noise ratio conditions. In order to operate on multi beam data, we have added an extra dimension to the detecting filters. This resulted in a detector that takes into account both the time, range, and width dimensions in the data during the detection process. Preliminary tests of cubic detector were performed with various parameter settings.

Název v anglickém jazyce

New Cubic Cross filter detector for multi beam data recorded with DIDSON acoustic camera

Popis výsledku anglicky

Target detection in data from the DIDSON (dual-frequency identification sonar) is a challenge. Due to high frequency and many narrow beams, the system can take series of acoustic pictures of passing fish. The entire body can be seen, but are often blurred and unclear in individual pictures. It is only when series of pictures are played like a film one can see that the target actually is a swimming fish. Hence, a good target detector should not be based on individual frames, but on using series of pictures. The Cross filter detector was originally designed for single, dual and split beam systems, to detect targets under very low signal to noise ratio conditions. In order to operate on multi beam data, we have added an extra dimension to the detecting filters. This resulted in a detector that takes into account both the time, range, and width dimensions in the data during the detection process. Preliminary tests of cubic detector were performed with various parameter settings.

Druh

D - Stať ve sborníku

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

<a href="/cs/project/GA206%2F07%2F1392" target="_blank" >GA206/07/1392: Horizontální akustické průzkumy a chování ryb ve volné vodě</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název statě ve sborníku

Underwater acoustic measurements, Technologies & Results

ISBN

978-960-98883-3-2

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

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Název nakladatele

Foundation for Research & Technology

Místo vydání

Heraklion

Místo konání akce

Nafplion

Datum konání akce

21. 6. 2009

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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