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dc.date.accessioned 2020-05-19T15:49:49Z
dc.date.available 2020-05-19T15:49:49Z
dc.identifier.uri https://digital.cic.gba.gob.ar/handle/11746/10572
dc.title Efficient approach for OS-CFAR 2D technique using distributive histograms and breakdown point optimal concept applied to acoustic images en
dc.type Artículo es
dcterms.abstract In this work, a new approach to improve the algorithmic efficiency of the order statistic-constant false alarm rate (OSCFAR) applied in two dimensions (2D) is presented. OS-CFAR is widely used in radar technology for detecting moving objects as well as in sonar technology for the relevant areas of segmentation and multi-target detection on the seafloor. OSCFAR rank orders the samples obtained from a sliding window around a test cell to select a representative sample that is used to calculate an adaptive detection threshold maintaining a false alarm probability. Then, the test cell is evaluated to determine the presence or absence of a target based on the calculated threshold. The rank orders allow that OS-CFAR technique to be more robust to the presence of the speckle noise, but requires higher computational effort. This is the bottleneck of the technique. Consequently, the contribution of this work is to improve the OSCFAR 2D on-line computation with the distributive histograms and the optimal breakdown point optimal concept, mainly from the standpoint of efficient computation. The theoretical algorithm analysis is presented to demonstrate the improvement of this approach. Also, this novel efficient OS-CFAR 2D was contrasted experimentally on acoustic images. en
dcterms.extent 2071-2082 es
dcterms.issued 2019-12
dcterms.language Inglés es
dcterms.license Attribution-NonCommercial-ShareAlike 4.0 International (BY-NC-SA 4.0) es
dcterms.subject Image denoising en
dcterms.subject Object detection en
dcterms.subject Radar clutter en
dcterms.subject Probability en
dcterms.subject Radar imaging en
dcterms.subject Radar detection en
dcterms.subject Statistical analysis en
dcterms.subject Sorting en
dcterms.subject Optimisation en
cic.version info:eu-repo/semantics/publishedVersion es
dcterms.creator.author Villar, Sebastián es
dcterms.creator.author Menna, Bruno V. es
dcterms.creator.author Torcida, Sebastián es
dcterms.creator.author Acosta, Gerardo G. es
cic.lugarDesarrollo Centro de Investigaciones en Física e Ingeniería es
dcterms.subject.materia Ingenierías y Tecnologías es
dcterms.identifier.url Recurso online es
dcterms.identifier.other doi:10.1049/iet-rsn.2018.5619 es
dcterms.isPartOf.issue vol. 13; No. 12 es
dcterms.isPartOf.series IET Radar, Sonar and Navigation es
cic.isPeerReviewed true es
cic.isFulltext true es
cic.institucionOrigen Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires (CIFICEN). Universidad Nacional del Centro de la Prov. de Bs. As. (UNICEN) es


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