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This paper deals with the design of a sensing matrix along with a sparse recovery algorithm by utilizing the probability-based prior information for compressed sensing system. With the knowledge of the probability for each atom of the…

机器学习 · 计算机科学 2019-10-29 Q. Jiang , S. Li , Z. Zhu , H. Bai , X. He , R. C. de Lamare

Motivated by applications such as sparse PCA, in this paper we present provably-accurate one-pass algorithms for the sparse approximation of the top eigenvectors of extremely massive matrices based on a single compact linear sketch. The…

信息论 · 计算机科学 2026-05-06 Edem Boahen , Simone Brugiapaglia , Hung-Hsu Chou , Mark Iwen , Felix Krahmer

Robust visual localization for urban vehicles remains challenging and unsolved. The limitation of computation efficiency and memory size has made it harder for large-scale applications. Since semantic information serves as a stable and…

机器人学 · 计算机科学 2020-10-14 Ziwei Liao , Jieqi Shi , Xianyu Qi , Xiaoyu Zhang , Wei Wang , Yijia He , Ran Wei , Xiao Liu

The convolutional sparse model has recently gained increasing attention in the signal and image processing communities, and several methods have been proposed for solving the pursuit problem emerging from it -- in particular its convex…

信息论 · 计算机科学 2017-02-23 Vardan Papyan , Jeremias Sulam , Michael Elad

Accurate location information is indispensable for the emerging applications of \ac{iov}, such as automatic driving and formation control. In the real scenario, vision-based localization has demonstrated superior performance to other…

系统与控制 · 电气工程与系统科学 2019-11-19 Fengzhuo Zhang , Kai Gu , Yuan Shen

The performance of the sensing system is limited by the signal attenuation and the number of receiving components. In this letter, we investigate the sensor position selection in a semi-passive intelligent reflecting surface (IRS) enabled…

信号处理 · 电气工程与系统科学 2025-11-25 Qiaoyan Peng , Qingqing Wu , Wen Chen , Guangji Chen , Ying Gao , Lexi Xu , Shaodan Ma

Two complementary approaches have been extensively used in signal and image processing leading to novel results, the sparse representation methodology and the variational strategy. Recently, a new sparsity based model has been proposed, the…

计算机视觉与模式识别 · 计算机科学 2015-08-17 Raja Giryes , Michael Elad , Alfred M. Bruckstein

In this work we propose an alternative formulation to the problem of ground reflectivity grid based localization involving laser scanned data from multiple LIDARs mounted on autonomous vehicles. The driving idea of our localization…

机器人学 · 计算机科学 2017-10-09 Juan Castorena , Siddharth Agarwal

This paper addresses vehicle positioning, a topic whose importance has risen dramatically in the context of future autonomous driving systems. While classical methods that use GPS and/or beacon signals from network infrastructure for…

信号处理 · 电气工程与系统科学 2021-02-10 Xinghe Chu , Zhaoming Lu , David Gesbert , Luhan Wang , Xiangming Wen

Co-prime sensing is a sub-Nyquist technique for signal acquisition. Several modifications to the prototype co-prime array have been proposed in the literature. Researchers have also demonstrated low latency estimation. This paper describes…

信号处理 · 电气工程与系统科学 2020-11-24 Usham V. Dias

Convolutional sparse coding improves on the standard sparse approximation by incorporating a global shift-invariant model. The most efficient convolutional sparse coding methods are based on the alternating direction method of multipliers…

机器学习 · 计算机科学 2022-02-09 Farshad G. Veshki , Sergiy A. Vorobyov

Operating in previously visited environments is becoming increasingly crucial for autonomous systems, with direct applications in autonomous driving, surveying, and warehouse or household robotics. This repeated exposure to observing the…

机器人学 · 计算机科学 2026-02-20 Lorenzo Montano-Olivan , Julio A. Placed , Luis Montano , Maria T. Lazaro

Compressed Sensing suggests that the required number of samples for reconstructing a signal can be greatly reduced if it is sparse in a known discrete basis, yet many real-world signals are sparse in a continuous dictionary. One example is…

信息论 · 计算机科学 2015-07-24 Yuanxin Li , Yuejie Chi

We consider the anchor placement problem in localization based on one-way ranging, in which either the sensor or the anchors send the ranging signals. The number of anchors deployed over a geographical area is generally sparse, and we show…

信息论 · 计算机科学 2013-03-19 Sundeep Prabhakar Chepuri , Geert Leus , Alle-Jan van der Veen

Accurate and robust global localization is essential to robotics applications. We propose a novel global localization method that employs the map traversability as a hidden observation. The resulting map-corrected odometry localization is…

机器人学 · 计算机科学 2019-10-02 Cheng Peng , David Weikersdorfer

The ensemble covariance matrix of a wide sense stationary signal spatially sampled by a full linear array is positive semi-definite and Toeplitz. However, the direct augmented covariance matrix of an augmentable sparse array is Toeplitz but…

信号处理 · 电气工程与系统科学 2021-06-08 Kaushallya Adhikari

This paper studies a multiple intelligent reflecting surfaces (IRSs) collaborative localization system where multiple semi-passive IRSs are deployed in the network to locate one or more targets based on time-of-arrival. It is assumed that…

信息论 · 计算机科学 2024-06-18 Ziheng Zhang , Wen Chen , Qingqing Wu , Zhendong Li , Xusheng Zhu , Jingfeng Chen , Nan Cheng

This paper addresses the problem of vision-based pedestrian localization, which estimates a pedestrian's location using images and camera parameters. In practice, however, calibrated camera parameters often deviate from the ground truth,…

计算机视觉与模式识别 · 计算机科学 2024-10-30 Wanyu Zhang , Jiaqi Zhang , Dongdong Ge , Yu Lin , Huiwen Yang , Huikang Liu , Yinyu Ye

State-of-the-art object detection systems rely on an accurate set of region proposals. Several recent methods use a neural network architecture to hypothesize promising object locations. While these approaches are computationally efficient,…

计算机视觉与模式识别 · 计算机科学 2016-04-12 Yongxi Lu , Tara Javidi , Svetlana Lazebnik

Controlling the radar beam-pattern by optimizing the transmit covariance matrix is a well-established approach for performance enhancement in multiple-input-multiple-output (MIMO) radars. In this paper, we investigate the joint optimization…

信号处理 · 电气工程与系统科学 2022-08-10 Arindam Bose , Shahin Khobahi , Mojtaba Soltanalian