New Cubic Cross filter detector for multi beam data recorded with DIDSON acoustic camera
The result's identifiers
Result code in 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>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
New Cubic Cross filter detector for multi beam data recorded with DIDSON acoustic camera
Original language description
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.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BI - Acoustics and oscillation
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA206%2F07%2F1392" target="_blank" >GA206/07/1392: Horizontal acoustic surveys and fish behaviour in the open water</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Underwater acoustic measurements, Technologies & Results
ISBN
978-960-98883-3-2
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
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Publisher name
Foundation for Research & Technology
Place of publication
Heraklion
Event location
Nafplion
Event date
Jun 21, 2009
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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