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We propose a new four-parameter distribution for modeling synthetic aperture radar (SAR) imagery named the gamma generalized normal (GGN) by combining the gamma and generalized normal distributions. A mathematical characterization of the…

统计方法学 · 统计学 2022-06-07 G. M. Cordeiro , R. J. Cintra , L. C. Rêgo , A. D. C. Nascimento

This article introduces a novel probability distribution model, namely Complex Isotropic {\alpha}-Stable-Rician (CI{\alpha}SR), for characterizing the data histogram of synthetic aperture radar (SAR) images. Having its foundation situated…

图像与视频处理 · 电气工程与系统科学 2023-06-08 Mutong Li , Ercan Engin Kuruoglu

SAR technology has been intensively implemented for geo-sensing and mapping purposes due to its advantages of high azimuthal resolution and weather-independent operation compared to other remote sensing technologies. Modelling SAR image…

信号处理 · 电气工程与系统科学 2023-03-09 Mutong Li , Ercan Engin Kuruoglu

Synthetic aperture radar (SAR) is an efficient and widely used remote sensing tool. However, data extracted from SAR images are contaminated with speckle, which precludes the application of techniques based on the assumption of additive and…

统计方法学 · 统计学 2024-10-15 A. D. C. Nascimento , J. M. Vasconcelos , R. J. Cintra , A. C. Frery

Three-dimensional target reconstruction from synthetic aperture radar (SAR) imagery is crucial for interpreting complex scattering information in SAR data. However, the intricate electromagnetic scattering mechanisms inherent to SAR imaging…

图形学 · 计算机科学 2025-10-09 Aobo Li , Zhengxin Lei , Jiangtao Wei , Feng Xu

Region-of-Interest (ROI)-based image compression allocates bits unevenly according to the semantic importance of different regions. Such differentiated coding typically induces a sharp-peaked and heavy-tailed distribution. This distribution…

图像与视频处理 · 电气工程与系统科学 2026-02-03 Kai Hu , Junfu Tan , Fang Xu , Ramy Samy , Yu Liu

This paper presents the generalized spatial autoregression (GSAR) model, a significant advance in spatial econometrics for non-normal response variables belonging to the exponential family. The GSAR model extends the logistic SAR, probit…

统计方法学 · 统计学 2024-12-03 N. A. Cruz , J. D. Toloza-Delgado , O. O. Melo

Correlated ${\cal G}$ distributions can be used to describe the clutter seen in images obtained with coherent illumination, as is the case of B-scan ultrasound, laser, sonar and synthetic aperture radar (SAR) imagery. These distributions…

统计方法学 · 统计学 2012-07-10 O. H. Bustos , A. G. Flesia , A. C. Frery , M. M. Lucini

In learned image compression, probabilistic models play an essential role in characterizing the distribution of latent variables. The Gaussian model with mean and scale parameters has been widely used for its simplicity and effectiveness.…

图像与视频处理 · 电气工程与系统科学 2025-04-24 Haotian Zhang , Li Li , Dong Liu

The $\mathcal{G}^0$ distribution is widely used for monopolarized SAR image modeling because it can characterize regions with different degree of texture accurately. It is indexed by three parameters: the number of looks (which can be…

统计方法学 · 统计学 2019-04-25 Alejandro C. Frery , Juliana Gambini

The Riemannian geometry of covariance matrices has been essential to several successful applications, in computer vision, biomedical signal and image processing, and radar data processing. For these applications, an important ongoing…

统计理论 · 数学 2017-05-15 Salem Said , Hatem Hajri , Lionel Bombrun , Baba C. Vemuri

Synthetic Aperture Radar (SAR) image understanding is crucial in remote sensing applications, but it is hindered by its intrinsic noise contamination, called speckle. Sophisticated statistical models, such as the $\mathcal{G}^0$ family of…

计算机视觉与模式识别 · 计算机科学 2023-06-26 Jeova Farias Sales Rocha Neto , Francisco Alixandre Avila Rodrigues

We introduce the beta generalized normal distribution which is obtained by compounding the beta and generalized normal [Nadarajah, S., A generalized normal distribution, \emph{Journal of Applied Statistics}. 32, 685--694, 2005]…

统计理论 · 数学 2022-06-06 R. J. Cintra , L. C. Rêgo , G. M. Cordeiro , A. D. C. Nascimento

The complex Gaussian distribution has been widely used as a fundamental spectral and noise model in signal processing and communication. However, its Gaussian structure often limits its ability to represent the diverse amplitude…

机器学习 · 统计学 2026-03-30 Toru Nakashika

This paper proposes a novel approach to robust radar detection of range-spread targets embedded in Gaussian noise with unknown covariance matrix. The idea is to model the useful target echo in each range cell as the sum of a coherent signal…

信号处理 · 电气工程与系统科学 2022-10-04 Angelo Coluccia , Alessio Fascista , Giuseppe Ricci

We develop and present a generalization of the GN-model - the generalized Gaussian noise (GGN) model - to enabling a fair application of GN-model to predict generation of nonlinear interference when loss parameters relevantly vary with…

光学 · 物理学 2018-06-25 Mattia Cantono , Dario Pilori , Alessio Ferrari , Vittorio Curri

Data which lie in the space $\mathcal{P}_{m\,}$, of $m \times m$ symmetric positive definite matrices, (sometimes called tensor data), play a fundamental role in applications including medical imaging, computer vision, and radar signal…

统计理论 · 数学 2016-12-09 Salem Said , Lionel Bombrun , Yannick Berthoumieu , Jonathan Manton

The Tsallis $q$-Gaussian distribution is a powerful generalization of the standard Gaussian distribution and is commonly used in various fields, including non-extensive statistical mechanics, financial markets and image processing. It…

统计计算 · 统计学 2023-05-19 Viktor Witkovský

Implicit Neural Representations (INR) have been successfully employed for Arbitrary-scale Super-Resolution (ASR). However, INR-based models need to query the multi-layer perceptron module numerous times and render a pixel in each query,…

图像与视频处理 · 电气工程与系统科学 2025-07-31 Du Chen , Liyi Chen , Zhengqiang Zhang , Lei Zhang

A new generalized Statistical Complexity Measure (SCM) was proposed by Rosso et al in 2010. It is a functional that captures the notions of order/disorder and of distance to an equilibrium distribution. The former is computed by a measure…

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