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Real-world documents may suffer various forms of degradation, often resulting in lower accuracy in optical character recognition (OCR) systems. Therefore, a crucial preprocessing step is essential to eliminate noise while preserving text…

计算机视觉与模式识别 · 计算机科学 2024-04-09 Giordano Cicchetti , Danilo Comminiello

Depth estimation plays a pivotal role in autonomous driving, facilitating a comprehensive understanding of the vehicle's 3D surroundings. Radar, with its robustness to adverse weather conditions and capability to measure distances, has…

计算机视觉与模式识别 · 计算机科学 2024-09-11 Huawei Sun , Zixu Wang , Hao Feng , Julius Ott , Lorenzo Servadei , Robert Wille

The prospect of nonparametric reconstructions of cosmological parameters from observational data sets has been a popular topic in the literature for a number of years. This has mainly taken the form of a technique based on Gaussian…

宇宙学与河外天体物理 · 物理学 2022-02-24 Konstantinos Dialektopoulos , Jackson Levi Said , Jurgen Mifsud , Joseph Sultana , Kristian Zarb Adami

Attention mechanisms play a crucial role in the neural revolution of Natural Language Processing (NLP). With the growth of attention-based models, several pruning techniques have been developed to identify and exploit sparseness, making…

计算与语言 · 计算机科学 2024-05-20 Ileana Rugina , Rumen Dangovski , Li Jing , Preslav Nakov , Marin Soljačić

We present a modular, full-stack autonomy system for lunar surface navigation and mapping developed for the Lunar Autonomy Challenge. Operating in a GNSS-denied, visually challenging environment, our pipeline integrates semantic…

机器人学 · 计算机科学 2026-03-19 Adam Dai , Asta Wu , Keidai Iiyama , Guillem Casadesus Vila , Kaila Coimbra , Thomas Deng , Grace Gao

Wireless sensor networks are widely adopted in military, civilian and commercial applications, which fuels an exponential explosion of sensory data. However, a major challenge to deploy effective sensing systems is the presence of {\em…

信息论 · 计算机科学 2015-09-15 Xiao-Yang Liu , Xiaodong Wang , Linghe Kong , Meikang Qiu , Min-You Wu

This paper proposes scalable and fast algorithms for solving the Robust PCA problem, namely recovering a low-rank matrix with an unknown fraction of its entries being arbitrarily corrupted. This problem arises in many applications, such as…

最优化与控制 · 数学 2013-10-21 Zhouchen Lin , Minming Chen , Yi Ma

Accurate 3D reconstruction of lunar surfaces is essential for space exploration. However, existing stereo vision reconstruction methods struggle in this context due to the Moon's lack of texture, difficult lighting variations, and atypical…

计算机视觉与模式识别 · 计算机科学 2025-10-22 Clementine Grethen , Simone Gasparini , Geraldine Morin , Jeremy Lebreton , Lucas Marti , Manuel Sanchez-Gestido

Establishing dense correspondence between two images is a fundamental computer vision problem, which is typically tackled by matching local feature descriptors. However, without global awareness, such local features are often insufficient…

计算机视觉与模式识别 · 计算机科学 2022-12-23 Zhengfei Kuang , Jiaman Li , Mingming He , Tong Wang , Yajie Zhao

The visual detection and tracking of surface terrain is required for spacecraft to safely land on or navigate within close proximity to celestial objects. Current approaches rely on template matching with pre-gathered patch-based features,…

计算机视觉与模式识别 · 计算机科学 2024-10-08 Timothy Chase , Karthik Dantu

Fast Neural Architecture Construction (NAC) is a method to construct deep network architectures by pruning and expansion of a base network. In recent years, several automated search methods for neural network architectures have been…

神经与进化计算 · 计算机科学 2018-12-17 Purushotham Kamath , Abhishek Singh , Debo Dutta

Recently, deep convolutional neural network methods have achieved an excellent performance in image superresolution (SR), but they can not be easily applied to embedded devices due to large memory cost. To solve this problem, we propose a…

图像与视频处理 · 电气工程与系统科学 2021-06-15 Huapeng Wu , Jie Gui , Jun Zhang , James T. Kwok , Zhihui Wei

Space exploration increasingly relies on Virtual Reality for several tasks, such as mission planning, multidisciplinary scientific analysis, and astronaut training. A key factor for the reliability of the simulations is having accurate 3D…

计算机视觉与模式识别 · 计算机科学 2026-03-04 Giuseppe Lorenzo Catalano , Agata Marta Soccini

This paper presents an efficient optimization technique for super-resolution two-dimensional (2D) direction of arrival (DOA) estimation by introducing a new formulation of atomic norm minimization (ANM). ANM allows gridless angle estimation…

信号处理 · 电气工程与系统科学 2022-04-27 Zhi Tian , Zhe Zhang , Yue Wang

Latency in the control loop of adaptive optics (AO) systems can severely limit performance. Under the frozen flow hypothesis linear predictive control techniques can overcome this, however identification and tracking of relevant turbulent…

天体物理仪器与方法 · 物理学 2020-06-10 Xuewen Liu , Tim Morris , Chris Saunter , Francisco Javier de Cos Juez , Carlos González-Gutiérrez , Lisa Bardou

Deep neural networks have emerged as effective tools for computational imaging including quantitative phase microscopy of transparent samples. To reconstruct phase from intensity, current approaches rely on supervised learning with training…

图像与视频处理 · 电气工程与系统科学 2020-01-28 Emrah Bostan , Reinhard Heckel , Michael Chen , Michael Kellman , Laura Waller

Dense depth estimation and 3D reconstruction of a surgical scene are crucial steps in computer assisted surgery. Recent work has shown that depth estimation from a stereo images pair could be solved with convolutional neural networks.…

图像与视频处理 · 电气工程与系统科学 2021-07-24 Baoru Huang , Jianqing Zheng , Anh Nguyen , David Tuch , Kunal Vyas , Stamatia Giannarou , Daniel S. Elson

We apply and compare various Artificial Neural Network (ANN) and other algorithms for automatic morphological classification of galaxies. The ANNs are presented here mathematically, as non-linear extensions of conventional statistical…

天体物理学 · 物理学 2015-06-24 O. Lahav , A. Naim , L. Sodre , M. C. Storrie-Lombardi

The employment of unmanned aerial vehicles (UAVs) in the lowaltitude economy necessitates precise and real-time radio maps for reliable communication and safe navigation. However, constructing such maps is hindered by the infeasibility of…

信号处理 · 电气工程与系统科学 2025-09-18 Hao Sun , Shicong Liu , Xianghao Yu , Ying Sun

Training a neural network (NN) typically relies on some type of curve-following method, such as gradient descent (GD) (and stochastic gradient descent (SGD)), ADADELTA, ADAM or limited memory algorithms. Convergence for these algorithms…

机器学习 · 计算机科学 2023-05-08 Michael A Kouritzin , Stephen Styles , Beatrice-Helen Vritsiou