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In this paper, we propose PointRCNN for 3D object detection from raw point cloud. The whole framework is composed of two stages: stage-1 for the bottom-up 3D proposal generation and stage-2 for refining proposals in the canonical…

Computer Vision and Pattern Recognition · Computer Science 2019-05-17 Shaoshuai Shi , Xiaogang Wang , Hongsheng Li

With the increasing demand of ultra-high-speed wireless communications and the existing low frequency band (e.g., sub-6GHz) becomes more and more crowded, millimeter-wave (mmWave) with large spectra available is considered as the most…

Networking and Internet Architecture · Computer Science 2017-09-13 Pei Zhou , Xuming Fang , Yan Long

3D vision with real-time LiDAR-based point cloud data became a vital part of autonomous system research, especially perception and prediction modules use for object classification, segmentation, and detection. Despite their success, point…

Computer Vision and Pattern Recognition · Computer Science 2023-01-31 Arup Kumar Sarker , Farzana Yasmin Ahmad , Matthew B. Dwyer

Emerging applications involving device-to-device communication among wearable electronics require Gbps throughput, which can be achieved by utilizing millimeter wave (mmWave) frequency bands. When many such communicating devices are indoors…

Information Theory · Computer Science 2016-11-17 Kiran Venugopal , Matthew C. Valenti , Robert W. Heath

Millimeter-wave (mmWave) spectrum is expected to support data-intensive applications that require ultra-reliable low-latency communications (URLLC). However, mmWave links are highly sensitive to blockage, which may lead to disruptions in…

Information Theory · Computer Science 2024-02-13 Mine Gokce Dogan , Jaimin Shah , Martina Cardone , Christina Fragouli , Wei Mao , Hosein Nikopour , Rath Vannithamby

Automatic extraction of road curbs from uneven, unorganized, noisy and massive 3D point clouds is a challenging task. Existing methods often project 3D point clouds onto 2D planes to extract curbs. However, the projection causes loss of 3D…

Computer Vision and Pattern Recognition · Computer Science 2016-10-28 Sheng Xu , Ruisheng Wang , Han Zheng

The millimeter wave (mmWave) bands are likely to play a significant role in next generation cellular systems due to the possibility of very high throughput thanks to the availability of massive bandwidth and high-dimensional antennas.…

Emergence of the utility of 3D point cloud data in safety-critical vision tasks (e.g., ADAS) urges researchers to pay more attention to the robustness of 3D representations and deep networks. To this end, we develop an attack and defense…

Computer Vision and Pattern Recognition · Computer Science 2021-06-01 Jiancheng Yang , Qiang Zhang , Rongyao Fang , Bingbing Ni , Jinxian Liu , Qi Tian

Efficient millimeter wave (mmWave) beam selection in vehicle-to-infrastructure (V2I) communication is a crucial yet challenging task due to the narrow mmWave beamwidth and high user mobility. To reduce the search overhead of iterative beam…

Information Theory · Computer Science 2021-11-18 Matteo Zecchin , Mahdi Boloursaz Mashhadi , Mikolaj Jankowski , Deniz Gunduz , Marios Kountouris , David Gesbert

Provisioning of high throughput millimetre-wave signal to indoor areas that potentially serve a large number of users, such as transportation hubs or convention centres, will require dedicated indoor millimetre-wave access point…

Information Theory · Computer Science 2018-02-19 Fadhil Firyaguna , Jacek Kibilda , Carlo Galiotto , Nicola Marchetti

Perfect alignment in chosen beam sectors at both transmit- and receive-nodes is required for beamforming in mmWave bands. Current 802.11ad WiFi and emerging 5G cellular standards spend up to several milliseconds exploring different sector…

Signal Processing · Electrical Eng. & Systems 2021-02-16 Batool Salehi , Mauro Belgiovine , Sara Garcia Sanchez , Jennifer Dy , Stratis Ioannidis , Kaushik Chowdhury

We propose a novel deep learning framework for predicting permeability of porous media from their digital images. Unlike convolutional neural networks, instead of feeding the whole image volume as inputs to the network, we model the…

Image and Video Processing · Electrical Eng. & Systems 2021-10-13 Ali Kashefi , Tapan Mukerji

3D object detection has seen quick progress thanks to advances in deep learning on point clouds. A few recent works have even shown state-of-the-art performance with just point clouds input (e.g. VoteNet). However, point cloud data have…

Computer Vision and Pattern Recognition · Computer Science 2020-01-30 Charles R. Qi , Xinlei Chen , Or Litany , Leonidas J. Guibas

Millimeter-wave (mmWave) offers high data rate and bandwidth for air-to-everything (A2X) communications including air-to-air, air-to-ground, and air-to-tower. MmWave communication in the A2X network is sensitive to buildings blockage…

Information Theory · Computer Science 2018-08-02 Kaifeng Han , Kaibin Huang , Robert W. Heath

Millimeter-Wave (mmWave) radar can enable high-resolution human pose estimation with low cost and computational requirements. However, mmWave data point cloud, the primary input to processing algorithms, is highly sparse and carries…

Image and Video Processing · Electrical Eng. & Systems 2022-05-03 Sizhe An , Umit Y. Ogras

High-efficient image compression is a critical requirement. In several scenarios where multiple modalities of data are captured by different sensors, the auxiliary information from other modalities are not fully leveraged by existing…

Image and Video Processing · Electrical Eng. & Systems 2024-12-17 Ziqun Li , Qi Zhang , Xiaofeng Huang , Zhao Wang , Siwei Ma , Wei Yan

Point clouds, which directly record the geometry and attributes of scenes or objects by a large number of points, are widely used in various applications such as virtual reality and immersive communication. However, due to the huge data…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Yuxuan Wei , Zehan Wang , Tian Guo , Hao Liu , Liquan Shen , Hui Yuan

In recent years, point cloud analysis methods based on the Transformer architecture have made significant progress, particularly in the context of multimedia applications such as 3D modeling, virtual reality, and autonomous systems.…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Qiang Zheng , Chao Zhang , Jian Sun

Communicating on millimeter wave (mmWave) bands is ushering in a new epoch of mobile communication which provides the availability of 10 Gbps high data rate transmission. However, mmWave links are easily prone to short transmission range…

Signal Processing · Electrical Eng. & Systems 2022-05-31 Yi Wang , Zhiqing Wei , Zhiyong Feng

Millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) with hybrid precoding is a promising technique for the future 5G wireless communications. Due to a large number of antennas but a much smaller number of radio frequency…

Information Theory · Computer Science 2017-10-31 Anwen Liao , Zhen Gao , Yongpeng Wu , Hua Wang , Mohamed-Slim Alouini