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Point-cloud based 3D object detectors recently have achieved remarkable progress. However, most studies are limited to the development of network architectures for improving only their accuracy without consideration of the computational…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Hyeon Cho , Junyong Choi , Geonwoo Baek , Wonjun Hwang

In the field of 3D object detection for autonomous driving, LiDAR-Camera (LC) fusion is the top-performing sensor configuration. Still, LiDAR is relatively high cost, which hinders adoption of this technology for consumer automobiles.…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Lingjun Zhao , Jingyu Song , Katherine A. Skinner

Knowledge Distillation (KD) is a widely-used technology to inherit information from cumbersome teacher models to compact student models, consequently realizing model compression and acceleration. Compared with image classification, object…

Computer Vision and Pattern Recognition · Computer Science 2021-12-10 Gang Li , Xiang Li , Yujie Wang , Shanshan Zhang , Yichao Wu , Ding Liang

Object detection has achieved remarkable accuracy through deep learning, yet these improvements often come with increased computational cost, limiting deployment on resource-constrained devices. Knowledge Distillation (KD) provides an…

Computer Vision and Pattern Recognition · Computer Science 2025-08-06 Mahdi Golizadeh , Nassibeh Golizadeh , Mohammad Ali Keyvanrad , Hossein Shirazi

In this paper, we investigate the knowledge distillation (KD) strategy for object detection and propose an effective framework applicable to both homogeneous and heterogeneous student-teacher pairs. The conventional feature imitation…

Computer Vision and Pattern Recognition · Computer Science 2021-10-13 Lewei Yao , Renjie Pi , Hang Xu , Wei Zhang , Zhenguo Li , Tong Zhang

In instance-level detection tasks (e.g., object detection), reducing input resolution is an easy option to improve runtime efficiency. However, this option traditionally hurts the detection performance much. This paper focuses on boosting…

Computer Vision and Pattern Recognition · Computer Science 2021-09-16 Lu Qi , Jason Kuen , Jiuxiang Gu , Zhe Lin , Yi Wang , Yukang Chen , Yanwei Li , Jiaya Jia

This paper addresses the critical challenges of sparsity and occlusion in LiDAR-based 3D object detection. Current methods often rely on supplementary modules or specific architectural designs, potentially limiting their applicability to…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Alexander Gambashidze , Aleksandr Dadukin , Maksim Golyadkin , Maria Razzhivina , Ilya Makarov

4D millimeter-wave (mmWave) radar has been widely adopted in autonomous driving and robot perception due to its low cost and all-weather robustness. However, point-cloud-based radar representations suffer from information loss due to…

Computer Vision and Pattern Recognition · Computer Science 2026-01-16 Runwei Guan , Jianan Liu , Shaofeng Liang , Fangqiang Ding , Shanliang Yao , Xiaokai Bai , Daizong Liu , Tao Huang , Guoqiang Mao , Hui Xiong

Beam training and prediction in real-world millimeter-wave (mmWave) communications systems are challenging due to rapidly time-varying channels and strong interference from surrounding objects. In this context, widely available sensors,…

Signal Processing · Electrical Eng. & Systems 2026-04-21 Mengyuan Ma , Isuri Welgamage , Ahmed Alkhateeb , A. Lee Swindlehurst , Markku Juntti , Nhan Thanh Nguyen

Unlike RGB cameras that use visible light bands (384$\sim$769 THz) and Lidars that use infrared bands (361$\sim$331 THz), Radars use relatively longer wavelength radio bands (77$\sim$81 GHz), resulting in robust measurements in adverse…

Computer Vision and Pattern Recognition · Computer Science 2023-11-08 Dong-Hee Paek , Seung-Hyun Kong , Kevin Tirta Wijaya

Recently, Bird's-Eye-View (BEV) representation has gained increasing attention in multi-view 3D object detection, which has demonstrated promising applications in autonomous driving. Although multi-view camera systems can be deployed at low…

Computer Vision and Pattern Recognition · Computer Science 2022-12-02 Jianing Li , Ming Lu , Jiaming Liu , Yandong Guo , Li Du , Shanghang Zhang

Detecting 3D objects from multi-view images is a fundamental problem in 3D computer vision. Recently, significant breakthrough has been made in multi-view 3D detection tasks. However, the unprecedented detection performance of these vision…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Linfeng Zhang , Yukang Shi , Hung-Shuo Tai , Zhipeng Zhang , Yuan He , Ke Wang , Kaisheng Ma

Recent developments and the beginning market introduction of high-resolution imaging 4D (3+1D) radar sensors have initialized deep learning-based radar perception research. We investigate deep learning-based models operating on radar point…

Robotics · Computer Science 2023-08-11 Patrick Palmer , Martin Krueger , Richard Altendorfer , Ganesh Adam , Torsten Bertram

Knowledge distillation(KD) is a widely-used technique to train compact models in object detection. However, there is still a lack of study on how to distill between heterogeneous detectors. In this paper, we empirically find that better FPN…

Computer Vision and Pattern Recognition · Computer Science 2022-12-01 Weihan Cao , Yifan Zhang , Jianfei Gao , Anda Cheng , Ke Cheng , Jian Cheng

Many radar signal processing methodologies are being developed for critical road safety perception tasks. Unfortunately, these signal processing algorithms are often poorly suited to run on embedded hardware accelerators used in…

Artificial Intelligence · Computer Science 2023-03-15 Steven Shaw , Kanishka Tyagi , Shan Zhang

Focusing on the strength of 4D (4-Dimensional) radar, research about robust 3D object detection networks in adverse weather conditions has gained attention. To train such networks, datasets that contain large amounts of 4D radar data and…

Signal Processing · Electrical Eng. & Systems 2024-07-09 Min-Hyeok Sun , Dong-Hee Paek , Seung-Hyun Song , Seung-Hyun Kong

3D point cloud segmentation faces practical challenges due to the computational complexity and deployment limitations of large-scale transformer-based models. To address this, we propose a novel Structure- and Relation-aware Knowledge…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Yuqi Li , Junhao Dong , Zeyu Dong , Chuanguang Yang , Zhulin An , Yongjun Xu

Transformer-based detectors (DETRs) are becoming popular for their simple framework, but the large model size and heavy time consumption hinder their deployment in the real world. While knowledge distillation (KD) can be an appealing…

Computer Vision and Pattern Recognition · Computer Science 2023-03-20 Jiahao Chang , Shuo Wang , Haiming Xu , Zehui Chen , Chenhongyi Yang , Feng Zhao

Recent advancements in camera-based 3D object detection have introduced cross-modal knowledge distillation to bridge the performance gap with LiDAR 3D detectors, leveraging the precise geometric information in LiDAR point clouds. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Sanmin Kim , Youngseok Kim , Sihwan Hwang , Hyeonjun Jeong , Dongsuk Kum

Real-world scenarios pose several challenges to deep learning based computer vision techniques despite their tremendous success in research. Deeper models provide better performance, but are challenging to deploy and knowledge distillation…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Ayush Bhardwaj , Sakshee Pimpale , Saurabh Kumar , Biplab Banerjee