A Novel Ship Detector Based on the Generalized-Likelihood Ratio Test for SAR Imagery
نویسندگان
چکیده
منابع مشابه
A Novel Algorithm for Ship Detection in Envisat Sar Imagery Based on the Wavelet Transform
Carrying out an effective control of fishing activities is essential to guarantee a sustainable exploitation of sea resources. While traditional reconnaissance methods, such as planes and patrol vessels are indispensible, their operation is quite time consuming and costly over the extended regulated areas. On the contrary, satellitebased Synthetic Aperture Radar (SAR) provides a powerful survei...
متن کاملExtended ratio edge detector for despeckled SAR image evaluation
Synthetic aperture radar (SAR) images due to the usage of coherent imaging systems are affected by speckle. So lots of despeckling filters have been introduced up to now to suppress the speckle. Hence, objective and subjective evaluation of the denoised SAR images becomes a necessity. Thereby lots of objective evaluating estimators are introduced to evaluate the performance of despeckling filte...
متن کاملGeneralized Likelihood Ratio Test for Selecting
A generalized likelihood ratio test is considered for testing acoustic propagation models in the context of environmental parameter inversion. In the following, we use the term \hierarchy of models" to denote a sequence of model structures M1;M2;... in which each particular model structure Mn contains all previous ones as special cases. We propose a combined parameter estimation and multiple se...
متن کاملShip Detection in SAR Imagery
Abstract---As a part of Maritime Domain Awareness, there is a requirement to detect ships in satellite-borne Synthetic Aperture Radar (SAR) images, which provide wide area ocean surveillance. When ship detection is implemented using a Constant False Alarm Rate (CFAR), statistical theory can be employed to ensure that proper parameters are used to find the thresholds for detection; inaccuracy ...
متن کاملOn sequential versions of the generalized likelihood ratio test
I t is shown that the Wilks large sample likelihood ratio statistic An, for testing between composite hypotheses 0O <= Q1 on the basis of a sample of size n, behaves as n varies like a diffusion process related to an equilibrium OrnsteinUhlenbeck process, whenever the null hypothesis is true. This fact is used to construct large sample sequential tests based on An, which are the same whatever t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
سال: 2017
ISSN: 1939-1404,2151-1535
DOI: 10.1109/jstars.2017.2692820