• Title/Summary/Keyword: 4 Segmentalized Contrast Box Detector

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Four Segmentalized CBD Method Using Maximum Contrast Value to Improve Detection in the Presence of Reverberation (최대 컨트라스트 값을 이용한 4분할 CBD의 잔향 감소기법)

  • Choi, Jun-Hyeok;Yoon, Kyung-Sik;Lee, Soo-Hyung;Kwon, Bum-Soo;Lee, Kyun-Kyung
    • The Journal of the Acoustical Society of Korea
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    • v.28 no.8
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    • pp.761-767
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    • 2009
  • The detection of target echoes in a sonar image is usually difficult since reverberation is originated by the returns reflected around the boundary and volumes. Under the scenario of the target presence around the reverberation, the detection performance of existing algorithms is degraded. Since they have a similar statistical features. But proposed detector gives improvement existing algorithms Under this scenario. In this paper, 4 segmentation contrast box algorithm using maximum contrast value is proposed based on statistical segmentation, which gives better detection performance in the sense of reducing false alarms. The simulations validate the effectiveness of the proposed algorithm.