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Rapid assessment after a natural disaster is key for prioritizing emergency resources. In the case of landslides, rapid assessment involves determining the extent of the area affected and measuring the size and location of individual…

计算机视觉与模式识别 · 计算机科学 2022-11-21 Vanessa Böhm , Wei Ji Leong , Ragini Bal Mahesh , Ioannis Prapas , Edoardo Nemni , Freddie Kalaitzis , Siddha Ganju , Raul Ramos-Pollan

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

Automotive radar sensors play a key role in the current development of advanced driver assistance systems (ADAS). Their ability to detect objects even under adverse weather conditions makes them indispensable for environment-sensing tasks…

信号处理 · 电气工程与系统科学 2024-10-28 Axel Diewald , Benjamin Nuss , Johannes Galinsky , Thomas Zwick

In the fast-paced field of human-computer interaction (HCI) and virtual reality (VR), automatic gesture recognition has become increasingly essential. This is particularly true for the recognition of hand signs, providing an intuitive way…

计算机视觉与模式识别 · 计算机科学 2024-02-21 Christian Schuessler , Wenxuan Zhang , Johanna Bräunig , Marcel Hoffmann , Michael Stelzig , Martin Vossiek

We present a Python-based renderer built on NVIDIA's OptiX ray tracing engine and the OptiX AI denoiser, designed to generate high-quality synthetic images for research in computer vision and deep learning. Our tool enables the description…

计算机视觉与模式识别 · 计算机科学 2021-05-31 Nathan Morrical , Jonathan Tremblay , Yunzhi Lin , Stephen Tyree , Stan Birchfield , Valerio Pascucci , Ingo Wald

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

Computing on graphics processing units (GPUs) has become standard in scientific computing, allowing for incredible performance gains over classical CPUs for many computational methods. As GPUs were originally designed for 3D rendering, they…

分布式、并行与集群计算 · 计算机科学 2024-12-17 Algis David , Bérenger Bramas

Radars are an ideal complement to cameras: both are inexpensive, solid-state sensors, with cameras offering fine angular resolution, while radars provide metric depth and robustness under adverse weather. However, radar data is more…

计算机视觉与模式识别 · 计算机科学 2026-05-27 Chuhan Chen , Tianshu Huang , Akarsh Prabhakara , Chaithanya Kumar Mummadi , Zhongxiao Cong , Anthony Rowe , Matthew O'Toole , Deva Ramanan

Open-source simulation tools play a crucial role for neuromorphic application engineers and hardware architects to investigate performance bottlenecks and explore design optimizations before committing to silicon. Reconfigurable…

新兴技术 · 计算机科学 2024-04-26 Sahil Hassan , Michael Inouye , Miguel C. Gonzalez , Ilkin Aliyev , Joshua Mack , Maisha Hafiz , Ali Akoglu

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

The stretch processing architecture is commonly used for frequency modulated continuous wave (FMCW) radar due to its inexpensive hardware, low sampling rate, and simple architecture. However, the stretch processing architecture is not able…

信号处理 · 电气工程与系统科学 2021-11-02 Moein Movafagh , Avik Santra , Daniel Oloumi

Radar-based human activity recognition (HAR) is attractive for unobtrusive and privacy-preserving monitoring, yet many CNN/RNN solutions remain too heavy for edge deployment, and even lightweight ViT/SSM variants often exceed practical…

信号处理 · 电气工程与系统科学 2025-10-28 Yizhuo Wu , Francesco Fioranelli , Chang Gao

Spaceborne synthetic aperture radar (SAR) can provide accurate images of the ocean surface roughness day-or-night in nearly all weather conditions, being an unique asset for many geophysical applications. Considering the huge amount of data…

计算机视觉与模式识别 · 计算机科学 2023-07-19 Nicolae-Cătălin Ristea , Andrei Anghel , Mihai Datcu , Bertrand Chapron

Forward modeling of wave scattering and radar imaging mechanisms is the key to information extraction from synthetic aperture radar (SAR) images. Like inverse graphics in optical domain, an inherently-integrated forward-inverse approach…

计算机视觉与模式识别 · 计算机科学 2022-11-23 Shilei Fu , Feng Xu

We introduce synax, a novel library for automatically differentiable simulation of Galactic synchrotron emission. Built on the JAX framework, synax leverages JAX's capabilities, including batch acceleration, just-in-time compilation, and…

天体物理仪器与方法 · 物理学 2025-03-26 Kangning Diao , Zack Li , Richard D. P. Grumitt , Yi Mao

Ray tracing is a technique for generating an image by tracing the path of light through pixels in an image plane and simulating the effects of high-quality global illumination at a heavy computational cost. Because of the high computation…

图形学 · 计算机科学 2015-04-14 Yutong Qin , Jianbiao Lin , Xiang Huang

Synthetic Aperture Radar (SAR) image captioning enables scene-level semantic understanding and plays a crucial role in applications such as military intelligence and urban planning, but its development is limited by the scarcity of…

图像与视频处理 · 电气工程与系统科学 2025-10-21 Jinqi Zhang , Lamei Zhang , Bin Zou

Synthetic aperture radar (SAR) image change detection is a critical task and has received increasing attentions in the remote sensing community. However, existing SAR change detection methods are mainly based on convolutional neural…

图像与视频处理 · 电气工程与系统科学 2023-09-22 Haopeng Zhang , Zijing Lin , Feng Gao , Junyu Dong , Qian Du , Heng-Chao Li

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

With modern defense applications increasingly relying on inexpensive, autonomous drones, lies the major challenge of designing computationally and memory-efficient onboard algorithms to fulfill mission objectives. This challenge is…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Conor Flynn , Radoslav Ivanov , Birsen Yazici