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Ensuring traffic safety and preventing accidents is a critical goal in daily driving, where the advancement of computer vision technologies can be leveraged to achieve this goal. In this paper, we present a multi-view, multi-scale framework…

Computer Vision and Pattern Recognition · Computer Science 2023-05-17 Yunsheng Ma , Liangqi Yuan , Amr Abdelraouf , Kyungtae Han , Rohit Gupta , Zihao Li , Ziran Wang

LiDAR (Light Detection And Ranging) is an indispensable sensor for precise long- and wide-range 3D sensing, which directly benefited the recent rapid deployment of autonomous driving (AD). Meanwhile, such a safety-critical application…

Cryptography and Security · Computer Science 2024-02-09 Takami Sato , Yuki Hayakawa , Ryo Suzuki , Yohsuke Shiiki , Kentaro Yoshioka , Qi Alfred Chen

One strategy to obtain user location information in a wireless network operating at millimeter wave (mmWave) is based on the exploitation of the geometric relationships between the channel parameters and the user position. These…

Signal Processing · Electrical Eng. & Systems 2025-03-11 Yun Chen , Nuria González-Prelcic , Takayuki Shimizu , Hongsheng Lu

A novel location-aware beamforming scheme for millimeter wave communication is proposed for line of sight (LOS) and low mobility scenarios, in which computer vision is introduced to derive the required position or spatial angular…

Signal Processing · Electrical Eng. & Systems 2020-06-23 Tianqi Xiang , Yaxin Wang , Huiwen Li , Boren Guo , Xin Zhang

Directional beamforming is a crucial component for realizing robust wireless communication systems using millimeter wave (mmWave) technology. Beam alignment using brute-force search of the space introduces time overhead while location aided…

Signal Processing · Electrical Eng. & Systems 2021-02-23 Vishnu Raj , Nancy Nayak , Sheetal Kalyani

In this paper, we consider the transformation of laser range measurements into a top-view grid map representation to approach the task of LiDAR-only semantic segmentation. Since the recent publication of the SemanticKITTI data set,…

Computer Vision and Pattern Recognition · Computer Science 2020-05-15 Frank Bieder , Sascha Wirges , Johannes Janosovits , Sven Richter , Zheyuan Wang , Christoph Stiller

In this paper, we propose an energy-efficient radar beampattern design framework for a Millimeter Wave (mmWave) massive multi-input multi-output (mMIMO) system, equipped with a hybrid analog-digital (HAD) beamforming structure. Aiming to…

Signal Processing · Electrical Eng. & Systems 2021-06-11 Zhaoyi Xu , Fan Liu , Konstantinos Diamantaras , Christos Masouros , Athina Petropulu

Millimeter wave (mmWave) communication is expected to play an important role in next generation cellular networks, aiming to cope with the bandwidth shortage affecting conventional wireless carriers. Using side-information has been proposed…

Signal Processing · Electrical Eng. & Systems 2017-11-09 Flavio Maschietti , David Gesbert , Paul de Kerret

Millimeter-wave massive multiple-input multiple-output systems employ highly directional beamforming to overcome severe path loss, and their performance critically depends on accurate beam alignment. Conventional codebook-based methods…

Signal Processing · Electrical Eng. & Systems 2026-02-26 Weijie Jin , Jing Zhang , Hengtao He , Chao-Kai Wen , Xiao Li , Shi Jin

Virtual testing is a crucial task to ensure safety in autonomous driving, and sensor simulation is an important task in this domain. Most current LiDAR simulations are very simplistic and are mainly used to perform initial tests, while the…

Computer Vision and Pattern Recognition · Computer Science 2022-08-08 Richard Marcus , Niklas Knoop , Bernhard Egger , Marc Stamminger

The potentials of automotive radar for autonomous driving have not been fully exploited. We present a multi-input multi-output (MIMO) radar transmit and receive signal processing chain, a knowledge-aided approach exploiting the radar domain…

Signal Processing · Electrical Eng. & Systems 2021-11-03 Ruxin Zheng , Shunqiao Sun , David Scharff , Teresa Wu

Light detection and ranging (LiDAR) has been widely used in autonomous driving and large-scale manufacturing. Although state-of-the-art scanning LiDAR can perform long-range three-dimensional imaging, the frame rate is limited by both…

Optics · Physics 2021-03-10 Zihan Zang , Zhi Li , Yi Luo , Yanjun Han , Xuanyi Liu , H. Y. Fu

The worldwide commercialization of fifth generation (5G) wireless networks and the exciting possibilities offered by connected and autonomous vehicles (CAVs) are pushing toward the deployment of heterogeneous sensors for tracking dynamic…

Image and Video Processing · Electrical Eng. & Systems 2022-02-03 Francesco Nardo , Davide Peressoni , Paolo Testolina , Marco Giordani , Andrea Zanella

This paper proposes a model-driven deep learning (MDDL)-based channel estimation and feedback scheme for wideband millimeter-wave (mmWave) massive hybrid multiple-input multiple-output (MIMO) systems, where the angle-delay domain channels'…

Information Theory · Computer Science 2022-01-20 Xisuo Ma , Zhen Gao , Feifei Gao , Marco Di Renzo

Accurate positioning is known to be a fundamental requirement for the deployment of Connected Automated Vehicles (CAVs). To meet this need, a new emerging trend is represented by cooperative methods where vehicles fuse information coming…

Signal Processing · Electrical Eng. & Systems 2024-10-28 Luca Barbieri , Bernardo Camajori Tedeschini , Mattia Brambilla , Monica Nicoli

- Both Lidars and Radars are sensors for obstacle detection. While Lidars are very accurate on obstacles positions and less accurate on their velocities, Radars are more precise on obstacles velocities and less precise on their positions.…

Robotics · Computer Science 2019-07-02 Hatem Hajri , Mohamed-Cherif Rahal

5G millimeter wave (mmWave) signals can enable accurate positioning in vehicular networks when the base station and vehicles are equipped with large antenna arrays. However, radio-based positioning suffers from multipath signals generated…

Signal Processing · Electrical Eng. & Systems 2020-02-27 Hyowon Kim , Karl Granström , Lin Gao , Giorgio Battistelli , Sunwoo Kim , Henk Wymeersch

The rollout of millimeter-wave (mmWave) cellular network enables us to realize the full potential of 5G/6G with vastly improved throughput and ultra-low latency. MmWave communication relies on highly directional transmission, which…

Information Theory · Computer Science 2022-08-12 Peize Zhang , Pekka Kyösti , Katsuyuki Haneda , Pasi Koivumäki , Wei Fan

LiDAR is a crucial sensor in autonomous driving, commonly used alongside cameras. By exploiting this camera-LiDAR setup and recent advances in image representation learning, prior studies have shown the promising potential of image-to-LiDAR…

Computer Vision and Pattern Recognition · Computer Science 2025-01-17 Wonjun Jo , Kwon Byung-Ki , Kim Ji-Yeon , Hawook Jeong , Kyungdon Joo , Tae-Hyun Oh

LiDARs plays an important role in self-driving cars and its configuration such as the location placement for each LiDAR can influence object detection performance. This paper aims to investigate an optimal configuration that maximizes the…

Robotics · Computer Science 2018-05-22 Shenyu Mou , Yan Chang , Wenshuo Wang , Ding Zhao
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