中文
相关论文

相关论文: Polarimetric SAR Image Smoothing with Stochastic D…

200 篇论文

PatchMatch Multi-View Stereo (PatchMatch MVS) is one of the popular MVS approaches, owing to its balanced accuracy and efficiency. In this paper, we propose Polarimetric PatchMatch multi-view Stereo (PolarPMS), which is the first method…

计算机视觉与模式识别 · 计算机科学 2023-11-15 Jinyu Zhao , Jumpei Oishi , Yusuke Monno , Masatoshi Okutomi

Polarimetric SAR data has the characteristics of all-weather, all-time and so on, which is widely used in many fields. However, the data of annotation is relatively small, which is not conducive to our research. In this paper, we have…

图像与视频处理 · 电气工程与系统科学 2019-12-17 Xu Liu , Licheng Jiao , Fang Liu

A new classifier for Polarimetric SAR (PolSAR) images is proposed and assessed in this paper. Its input consists of segments, and each one is assigned the class which minimizes a stochastic distance. Assuming the complex Wishart model,…

计算机视觉与模式识别 · 计算机科学 2016-11-15 Wagner Barreto da Silva , Corina da Costa Freitas , Sidnei João Siqueira Sant'Anna , Alejandro C. Frery

Currently, numerous remote sensing satellites provide a huge volume of diverse earth observation data. As these data show different features regarding resolution, accuracy, coverage, and spectral imaging ability, fusion techniques are…

图像与视频处理 · 电气工程与系统科学 2018-10-29 Hossein Bagheri , Michael Schmitt , Pablo d'Angelo , Xiao Xiang Zhu

We propose a tightly-coupled LiDAR/Polarization Vision/Inertial/Magnetometer/Optical Flow Odometry via Smoothing and Mapping (LPVIMO-SAM) framework, which integrates LiDAR, polarization vision, inertial measurement unit, magnetometer, and…

机器人学 · 计算机科学 2025-12-03 Derui Shan , Peng Guo , Wenshuo Li , Du Tao

The segmentation of synthetic aperture radar (SAR) images is a longstanding yet challenging task, not only because of the presence of speckle, but also due to the variations of surface backscattering properties in the images. Tremendous…

计算机视觉与模式识别 · 计算机科学 2017-07-25 Gui-Song Xia , Gang Liu , Wen Yang

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

Satellite-based Synthetic Aperture Radar (SAR) images can be used as a source of remote sensed imagery regardless of cloud cover and day-night cycle. However, the speckle noise and varying image acquisition conditions pose a challenge for…

计算机视觉与模式识别 · 计算机科学 2023-11-03 Janne Alatalo , Tuomo Sipola , Mika Rantonen

The recognition or understanding of the scenes observed with a SAR system requires a broader range of cues, beyond the spatial context. These encompass but are not limited to: imaging geometry, imaging mode, properties of the Fourier…

图像与视频处理 · 电气工程与系统科学 2023-01-11 Mihai Datcu , Zhongling Huang , Andrei Anghel , Juanping Zhao , Remus Cacoveanu

In this paper, we report the development of the generalized proximal smoothing (GPS) algorithm for phase retrieval of noisy data. GPS is a optimization-based algorithm, in which we relax both the Fourier magnitudes and object constraints.…

最优化与控制 · 数学 2019-02-20 Minh Pham , Penghang Yin , Arjun Rana , Stanley Osher , Jiawei Miao

A new smoothing method for the improvement on the identification and quantification of spectral functions based on the previous knowledge of the signals that are expected to be quantified, is presented. These signals are used as weighted…

原子物理 · 物理学 2017-01-31 Leonardo Bennun

Polarization plays an important role in various time-domain astrophysics to understand the magnetic fields, geometry, and environments of spatially unresolved variable sources. In this paper we present the results of laboratory and on-sky…

天体物理仪器与方法 · 物理学 2020-04-29 Manisha Shrestha , Iain A. Steele , Andrez S. Piascik , Helen Jermak , Robert J. Smith , Chris M. Copperwheat

Imaging polarimetry allows more information to be extracted from a scene than conventional intensity or colour imaging. However, a major challenge of imaging polarimetry is image degradation due to noise. This paper investigates the…

计算机视觉与模式识别 · 计算机科学 2018-05-09 Alexander B. Tibbs , Ilse M. Daly , Nicholas W. Roberts , David R. Bull

Filtering and smoothing algorithms for linear discrete-time state-space models with skew-t-distributed measurement noise are proposed. The algorithms use a variational Bayes based posterior approximation with coupled location and skewness…

系统与控制 · 计算机科学 2018-11-28 Henri Nurminen , Tohid Ardeshiri , Robert Piché , Fredrik Gustafsson

Speckle reduction is a key step in many remote sensing applications. By strongly affecting synthetic aperture radar (SAR) images, it makes them difficult to analyse. Due to the difficulty to model the spatial correlation of speckle, a deep…

图像与视频处理 · 电气工程与系统科学 2021-04-14 Emanuele Dalsasso , Loïc Denis , Florence Tupin

Compressed sensing Synthetic Aperture Radar (SAR) image formation, formulated as an inverse problem and solved with traditional iterative optimization methods can be very computationally expensive. We investigate the use of denoising…

图像与视频处理 · 电气工程与系统科学 2025-04-25 Odysseas Pappas , Perla Mayo , Andrew Austin , Alin Achim

Synthetic Aperture Radar (SAR) images are a valuable asset for a wide variety of tasks. In the last few years, many websites have been offering them for free in the form of easy to manage products, favoring their widespread diffusion and…

图像与视频处理 · 电气工程与系统科学 2022-04-05 Edoardo Daniele Cannas , Nicolò Bonettini , Sara Mandelli , Paolo Bestagini , Stefano Tubaro

Synthetic aperture radar tomography (TomoSAR) baseline optimization technique is capable of reducing system complexity and improving the temporal coherence of data, which has become an important research in the field of TomoSAR. In this…

信号处理 · 电气工程与系统科学 2022-12-02 Pengyu Jiang , Zhe Zhang , Bingchen Zhang , Zhongqiu Xu

We present two backscattering polarimetric scanning setups based on point-illumination schemes, that are designed to probe the optical properties of subsurface media. We describe their advantages and limitations, characterize their…

光学 · 物理学 2026-05-28 Bhanu P. Singh , Vladislav Stefanov , Nadine A. Coorens , Andre Stefanov

Model-based decompositions have gained considerable attention after the initial work of Freeman and Durden. This decomposition which assumes the target to be reflection symmetric was later relaxed in the Yamaguchi et al. decomposition with…

信息论 · 计算机科学 2016-11-17 Avik Bhattacharya , Arnab Muhuri , Shaunak De , Surendar Manickam , Alejandro C. Frery