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Particle methods are widely used because they can provide accurate descriptions of evolving measures. Recently it has become clear that by stepping outside the Monte Carlo paradigm these methods can be of higher order with effective and…

Probability · Mathematics 2012-08-21 C. Litterer , T. Lyons

Underwater visual-inertial navigation is challenging due to the poor visibility and presence of outliers in underwater environments. The navigation performance is closely related to outlier detection and elimination. Existing methods assume…

Robotics · Computer Science 2021-09-30 Sajad Hassan , Hongkyoon Byun , Jonghyuk Kim

Penetrating detection and recognition of behind wall indoor human activities has drawn great attentions from social security and emergency service department in recent years since intelligent surveillance aforehand could avail the proper…

Signal Processing · Electrical Eng. & Systems 2020-01-30 Qiang An , Shuoguang Wang , Ahmad Hoorfar , Wenji Zhang , Hao Lv , Shiyong Li , Jianqi Wang

This paper introduces an efficient edge detection method based on Gabor filter and rough clustering. The input image is smoothed by Gabor function, and the concept of rough clustering is used to focus on edge detection with soft…

Computer Vision and Pattern Recognition · Computer Science 2016-11-18 Chandranath Adak

Collaborative filtering (CF) is an essential technique in recommender systems that provides personalized recommendations by only leveraging user-item interactions. However, most CF methods represent users and items as fixed points in the…

Information Retrieval · Computer Science 2024-07-02 Haoxuan Li , Yuanxin Ouyang , Zhuang Liu , Wenge Rong , Zhang Xiong

Due to its high delay resolution, the ultra-wideband (UWB) technique has been widely adopted for fine-grained indoor localization. Instead of active positioning, UWB radar-based passive human tracking is explored using commercial…

Signal Processing · Electrical Eng. & Systems 2022-04-20 Chenglong Li , Emmeric Tanghe , Jaron Fontaine , Luc Martens , Jac Romme , Gaurav Singh , Eli De Poorter , Wout Joseph

Discrete return (DR) Laser Detection and Ranging (Ladar) systems provide a series of echoes that reflect from objects in a scene. These can be first, last or multi-echo returns. In contrast, Full-Waveform (FW)-Ladar systems measure the…

Optics · Physics 2016-02-18 Puneet S Chhabra , Andrew M Wallace , James R Hopgood

This paper proposes a novel approach to enhance the accuracy and reliability of texture-based surface defect detection using Gabor filters and a blurring U-Net-ViT model. By combining the local feature training of U-Net with the global…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Jongwook Si , Sungyoung Kim

Retrieving an object from cluttered spaces suchas cupboards, refrigerators, or bins requires tracking objects with limited or no visual sensing. In these scenarios, contact feedback is necessary to estimate the pose of the objects, yet the…

Robotics · Computer Science 2022-01-26 Sheng Zhong , Nima Fazeli , Dmitry Berenson

In this paper, we present a successful implementation of a subtraction-noise projection method into a simple, simulated data analysis pipeline of a gravitational-wave search. We investigate the problem to reveal a weak stochastic background…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Jan Harms , Christoph Mahrdt , Markus Otto , Malte Priess

Ultra-wideband (UWB) has shown promising potential in GPS-denied localization thanks to its lightweight and drift-free characteristics, while the accuracy is limited in real scenarios due to its sensitivity to sensor arrangement and…

Robotics · Computer Science 2025-12-12 Si Wang , Bingqi Shen , Fei Wang , Yanjun Cao , Rong Xiong , Yue Wang

Extending state-of-the-art object detectors from image to video is challenging. The accuracy of detection suffers from degenerated object appearances in videos, e.g., motion blur, video defocus, rare poses, etc. Existing work attempts to…

Computer Vision and Pattern Recognition · Computer Science 2017-08-21 Xizhou Zhu , Yujie Wang , Jifeng Dai , Lu Yuan , Yichen Wei

We use adversarial network architectures together with the Wasserstein distance to generate or refine simulated detector data. The data reflect two-dimensional projections of spatially distributed signal patterns with a broad spectrum of…

Instrumentation and Methods for Astrophysics · Physics 2018-02-12 Martin Erdmann , Lukas Geiger , Jonas Glombitza , David Schmidt

Increasing GPS precision at low cost has always been a challenge for the manufacturers of the GPS receivers. This paper proposes the use of a Wiener filter for increasing precision in substitution of traditional GPS/INS fusion systems,…

Other Computer Science · Computer Science 2010-06-07 J. Garcia , C. Zhou

Detecting weak target is an important and challenging problem in many applications such as radar, sonar etc. However, conventional detection methods are often ineffective in this case because of low signal-to-noise ratio (SNR). This paper…

Signal Processing · Electrical Eng. & Systems 2023-09-26 Jin Lu , Guojie Peng , Weichuan Zhang , Changming Sun

Next-generation gravitational-wave detectors will provide unprecedented sensitivity to inspiraling binary neutron stars and black holes, enabling detections at the peak of star formation and beyond. However, the signals from these systems…

Instrumentation and Methods for Astrophysics · Physics 2024-02-22 Andrew L. Miller , Neha Singh , Cristiano Palomba

Rare data in a large-scale database are called outliers that reveal significant information in the real world. The subspace-based outlier detection is regarded as a feasible approach in very high dimensional space. However, the outliers…

Artificial Intelligence · Computer Science 2014-05-06 Zhana Bao

With the advent of gravitational wave astronomy, techniques to extend the reach of gravitational wave detectors are desired. In addition to the stellar-mass black hole and neutron star mergers already detected, many more are below the…

Instrumentation and Methods for Astrophysics · Physics 2020-07-22 Rich Ormiston , Tri Nguyen , Michael Coughlin , Rana X. Adhikari , Erik Katsavounidis

Detecting tiny objects is a very challenging problem since a tiny object only contains a few pixels in size. We demonstrate that state-of-the-art detectors do not produce satisfactory results on tiny objects due to the lack of appearance…

Computer Vision and Pattern Recognition · Computer Science 2022-06-15 Jinwang Wang , Chang Xu , Wen Yang , Lei Yu

Reliable dynamic object detection in cluttered environments remains a critical challenge for autonomous navigation. Purely geometric LiDAR pipelines that rely on clustering and heuristic filtering can miss dynamic obstacles when they move…

Robotics · Computer Science 2026-03-18 Juan Rached , Yixuan Jia , Kota Kondo , Jonathan P. How