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Compared to the general semantic segmentation problem, portrait segmentation has higher precision requirement on boundary area. However, this problem has not been well studied in previous works. In this paper, we propose a…

计算机视觉与模式识别 · 计算机科学 2018-04-11 Xianzhi Du , Xiaolong Wang , Dawei Li , Jingwen Zhu , Serafettin Tasci , Cameron Upright , Stephen Walsh , Larry Davis

The disparity information provided by stereo cameras has enabled advanced driver assistance systems to estimate road area more accurately and effectively. In this paper, a novel disparity transformation algorithm is proposed to extract road…

计算机视觉与模式识别 · 计算机科学 2018-08-09 Rui Fan , Mohammud Junaid Bocus , Naim Dahnoun

In this study we investigate the potential for using synthetic aperture radar (SAR) data to provide high resolution defoliation and regrowth mapping of trees in the tundra-forest ecotone. Using aerial photographs, four areas with live…

图像与视频处理 · 电气工程与系统科学 2020-07-20 Jørgen A. Agersborg , Stian Normann Anfinsen , Jane Uhd Jepsen

The image classification problem has been deeply investigated by the research community, with computer vision algorithms and with the help of Neural Networks. The aim of this paper is to build an image classifier for satellite images of…

计算机视觉与模式识别 · 计算机科学 2021-10-01 Jonas Bokstaller , Yihang She , Zhehan Fu , Tommaso Macrì

We address the issue of edge detection in Synthetic Aperture Radar imagery. In particular, we propose nonparametric methods for edge detection, and numerically compare them to an alternative method that has been recently proposed in the…

应用统计 · 统计学 2012-08-30 Edwin Girón , Alejandro C. Frery , Francisco Cribari-Neto

The hard X-ray polarimeter POLAR aims to measure the linear polarization of the 50-500 keV photons arriving from the prompt emission of gamma-ray bursts (GRBs). The position in the sky of the detected GRBs is needed to determine their level…

Current successful approaches for generic (non-semantic) segmentation rely mostly on edge detection and have leveraged the strengths of deep learning mainly by improving the edge detection stage in the algorithmic pipeline. This is in…

计算机视觉与模式识别 · 计算机科学 2020-03-26 Or Isaacs , Oran Shayer , Michael Lindenbaum

We study synthetic aperture radar (SAR) imaging and motion estimation of complex scenes consisting of stationary and moving targets. We use the classic SAR setup with a single antenna emitting signals and receiving the echoes from the…

数值分析 · 数学 2015-06-11 Liliana Borcea , Thomas Callaghan , George Papanicolaou

The purpose of this paper is to explore a new way of autonomous mapping. Current systems using perception techniques like LAZER or SONAR use probabilistic methods and have a drawback of allowing considerable uncertainty in the mapping…

机器人学 · 计算机科学 2013-12-16 Amiraj Dhawan , Parag Oak , Rahul Mishra , George Puthanpurackal

In this paper, we target refining the boundaries in high resolution images given low resolution masks. For memory and computation efficiency, we propose to convert the regions of interest into strip images and compute a boundary prediction…

计算机视觉与模式识别 · 计算机科学 2020-03-27 Peng Zhou , Brian Price , Scott Cohen , Gregg Wilensky , Larry S. Davis

Ground Penetrating Radar (GPR) is widely used as a non-destructive approach to estimate buried utilities. When the GPR's detecting direction is perpendicular to a pipeline, a hyperbolic characteristic would be formed on the GPR B-scan…

计算机视觉与模式识别 · 计算机科学 2022-01-26 Xiren Zhou , Qiuju Chen , Shengfei Lyu , Huanhuan Chen

Medical image segmentation has become an essential technique in clinical and research-oriented applications. Because manual segmentation methods are tedious, and fully automatic segmentation lacks the flexibility of human intervention or…

图像与视频处理 · 电气工程与系统科学 2019-04-24 Kevin Karsch , Qing He , Ye Duan

Delineating the lesion area is an important task in image-based diagnosis. Pixel-wise classification is a popular approach to segmenting the region of interest. However, at fuzzy boundaries such methods usually result in glitches,…

计算机视觉与模式识别 · 计算机科学 2021-08-03 Haichou Chen , Yishu Deng , Bin Li , Zeqin Li , Haohua Chen , Bingzhong Jing , Chaofeng Li

Synthetic aperture radar technology is crucial for high-resolution imaging under various conditions; however, the acquisition of real-world synthetic aperture radar data for deep learning-based automatic target recognition remains…

计算机视觉与模式识别 · 计算机科学 2024-09-24 Minjun Kim , Ohtae Jang , Haekang Song , Heesub Shin , Jaewoo Ok , Minyoung Back , Jaehyuk Youn , Sungho Kim

A Polarimetric Synthetic Aperture Radar (PolSAR) sensor is able to collect images in different polarization states, making it a rich source of information for target characterization. PolSAR images are inherently affected by speckle.…

图像与视频处理 · 电气工程与系统科学 2022-02-16 Adugna G. Mullissa , Claudio Persello , Johannes Reiche

Rotating Synthetic Aperture Radar (ROSAR) can generate a 360$^\circ$ image of its surrounding environment using the collected data from a single moving track. Due to its non-linear track, the Back-Projection Algorithm (BPA) is commonly used…

信号处理 · 电气工程与系统科学 2023-09-18 Wei Zhao , Cai Wen , Quan Yuan , Rong Zheng

Image segmentation has been a very active research topic in image analysis area. Currently, most of the image segmentation algorithms are designed based on the idea that images are partitioned into a set of regions preserving homogeneous…

计算机视觉与模式识别 · 计算机科学 2015-03-17 Yu Su , Margaret H. Dunham

In this paper, we present a new image segmentation method based on the concept of sparse subset selection. Starting with an over-segmentation, we adopt local spectral histogram features to encode the visual information of the small segments…

计算机视觉与模式识别 · 计算机科学 2018-04-10 Fariba Zohrizadeh , Mohsen Kheirandishfard , Farhad Kamangar

We present recent improvements in polarization analysis with the INTEGRAL SPI data. The SPI detector plane consists of 19 independent Ge crystals and can operate as a polarimeter. The anisotropy characteristics of Compton diffusions can…

天体物理仪器与方法 · 物理学 2015-06-15 M. Chauvin , J. P. Roques , D. J. Clark , E. Jourdain

Synthetic aperture radar (SAR) is a day or night any-weather imaging modality that is an important tool in remote sensing. Most existing SAR image formation methods result in a maximum a posteriori image which approximates the reflectivity…

应用统计 · 统计学 2020-07-14 Victor Churchill , Anne Gelb