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Accurate parameter estimation such as angle of arrival (AOA) is essential to enhance the performance of integrated sensing and communication (ISAC) in mmWave multiple-input multiple-output (MIMO) systems. This work presents a sensing-aided…

信息论 · 计算机科学 2025-03-05 Ngoc-Son Duong , Khac-Hoang Ngo , Thai-Mai Dinh , Van-Linh Nguyen

Radar sensors are emerging as solutions for perceiving surroundings and estimating ego-motion in extreme weather conditions. Unfortunately, radar measurements are noisy and suffer from mutual interference, which degrades the performance of…

机器人学 · 计算机科学 2023-03-06 Hyungtae Lim , Kawon Han , Gunhee Shin , Giseop Kim , Songcheol Hong , Hyun Myung

We tackle the problem of estimating a Manhattan frame, i.e. three orthogonal vanishing points, and the unknown focal length of the camera, leveraging a prior vertical direction. The direction can come from an Inertial Measurement Unit that…

计算机视觉与模式识别 · 计算机科学 2023-08-22 Rémi Pautrat , Shaohui Liu , Petr Hruby , Marc Pollefeys , Daniel Barath

Herein, an atomic norm based method for accurately estimating the location and orientation of a target from millimeter-wave multi-input-multi-output (MIMO) orthogonal frequency-division multiplexing (OFDM) signals is presented. A novel…

信号处理 · 电气工程与系统科学 2021-10-12 Jianxiu Li , Maxime Ferreira Da Costa , Urbashi Mitra

Robots and autonomous vehicles should be aware of what happens in their surroundings. The segmentation and tracking of moving objects are essential for reliable path planning, including collision avoidance. We investigate this estimation…

计算机视觉与模式识别 · 计算机科学 2025-07-08 Matthias Zeller , Daniel Casado Herraez , Jens Behley , Michael Heidingsfeld , Cyrill Stachniss

Colocated multiple-input multiple-output (MIMO) technology has been widely used in automotive radars as it provides accurate angular estimation of the objects with relatively small number of transmitting and receiving antennas. Since the…

信号处理 · 电气工程与系统科学 2024-07-16 Le Zheng , Jiamin Long , Marco Lops , Fan Liu , Xueyao Hu

Visual Object Tracking (VOT) has synchronous needs for both robustness and accuracy. While most existing works fail to operate simultaneously on both, we investigate in this work the problem of conflicting performance between accuracy and…

计算机视觉与模式识别 · 计算机科学 2021-03-19 Jinghao Zhou , Bo Li , Lei Qiao , Peng Wang , Weihao Gan , Wei Wu , Junjie Yan , Wanli Ouyang

The homography matrix is a key component in various vision-based robotic tasks. Traditionally, homography estimation algorithms are classified into feature- or intensity-based. The main advantages of the latter are their versatility,…

计算机视觉与模式识别 · 计算机科学 2022-03-09 Lucas Nogueira , Ely C. de Paiva , Geraldo Silvera

The orthogonal multi-matching pursuit (OMMP) is a natural extension of orthogonal matching pursuit (OMP). We denote the OMMP with the parameter $M$ as OMMP(M) where $M\geq 1$ is an integer. The main difference between OMP and OMMP(M) is…

信息论 · 计算机科学 2013-07-18 Zhiqiang Xu

Real-time path tracing increasingly operates under extremely low sampling budgets, often below one sample per pixel, as rendering complexity, resolution, and frame-rate requirements continue to rise. While super-resolution is widely used in…

图形学 · 计算机科学 2026-02-10 Martin Bálint , Corentin Salaün , Hans-Peter Seidel , Karol Myszkowski

We present a new test-time optimization method for estimating dense and long-range motion from a video sequence. Prior optical flow or particle video tracking algorithms typically operate within limited temporal windows, struggling to track…

计算机视觉与模式识别 · 计算机科学 2023-09-13 Qianqian Wang , Yen-Yu Chang , Ruojin Cai , Zhengqi Li , Bharath Hariharan , Aleksander Holynski , Noah Snavely

Detecting oriented objects along with estimating their rotation information is one crucial step for analyzing remote sensing images. Despite that many methods proposed recently have achieved remarkable performance, most of them directly…

计算机视觉与模式识别 · 计算机科学 2021-12-02 Yanjie Wang , Xu Zou , Zhijun Zhang , Wenhui Xu , Liqun Chen , Sheng Zhong , Luxin Yan , Guodong Wang

A sufficient condition reported very recently for perfect recovery of a K-sparse vector via orthogonal matching pursuit (OMP) in K iterations is that the restricted isometry constant of the sensing matrix satisfies…

信息论 · 计算机科学 2014-01-06 Ling-Hua Chang , Jwo-Yuh Wu

As a greedy algorithm to recover sparse signals from compressed measurements, orthogonal matching pursuit (OMP) algorithm has received much attention in recent years. In this paper, we introduce an extension of the OMP for pursuing…

信息论 · 计算机科学 2014-04-01 Jian Wang , Seokbeop Kwon , Byonghyo Shim

The Orthogonal Matching Pursuit (OMP) for compressed sensing iterates over a scheme of support augmentation and signal estimation. We present two novel matching pursuit algorithms with intrinsic regularization of the signal estimation step…

信息论 · 计算机科学 2019-02-22 Robert Seidel

A well-known analysis of Tropp and Gilbert shows that orthogonal matching pursuit (OMP) can recover a k-sparse n-dimensional real vector from 4 k log(n) noise-free linear measurements obtained through a random Gaussian measurement matrix…

信息论 · 计算机科学 2015-05-28 Alyson K. Fletcher , Sundeep Rangan

Remote sensing of oceanographic data often yields incomplete coverage of the measurement domain. This can limit interpretability of the data and identification of coherent features informative of ocean dynamics. Several methods exist to…

大气与海洋物理 · 物理学 2019-03-27 Siavash Ameli , Shawn C. Shadden

Computationally efficient moving object detection and depth estimation from a stereo camera is an extremely useful tool for many computer vision applications, including robotics and autonomous driving. In this paper we show how moving…

机器人学 · 计算机科学 2018-09-24 Goran Popović , Antea Hadviger , Ivan Marković , Ivan Petrović

The design of sparse linear arrays has proven instrumental in the implementation of cost-effective and efficient automotive radar systems for high-resolution imaging. This paper investigates the impact of coarse quantization on measurements…

信号处理 · 电气工程与系统科学 2024-03-07 Arian Eamaz , Farhang Yeganegi , Yunqiao Hu , Shunqiao Sun , Mojtaba Soltanalian

Monocular image-based 3D perception has become an active research area in recent years owing to its applications in autonomous driving. Approaches to monocular 3D perception including detection and tracking, however, often yield inferior…