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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

  • DOI - Digital Object Identifier

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

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    BI - Acoustics and oscillation

  • OECD FORD branch

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

  • e-ISSN

  • Number of pages

    8

  • Pages from-to

  • 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