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Point cloud is a crucial representation of 3D contents, which has been widely used in many areas such as virtual reality, mixed reality, autonomous driving, etc. With the boost of the number of points in the data, how to efficiently…

计算机视觉与模式识别 · 计算机科学 2022-08-05 Kang You , Pan Gao , Qing Li

In this work, we shed light on different data augmentation techniques commonly used in Light Detection and Ranging (LiDAR) based 3D Object Detection. For the bulk of our experiments, we utilize the well known PointPillars pipeline and the…

计算机视觉与模式识别 · 计算机科学 2022-08-01 Martin Hahner , Dengxin Dai , Alexander Liniger , Luc Van Gool

Data collection often results in records that have missing values or variables. This investigation compares 3 different data imputation models and identifies their merits by using accuracy measures. Autoencoder Neural Networks, Principal…

人工智能 · 计算机科学 2007-09-18 Vukosi N. Marivate , Fulufhelo V. Nelwamodo , Tshilidzi Marwala

Reliable and accurate 3D object detection is a necessity for safe autonomous driving. Although LiDAR sensors can provide accurate 3D point cloud estimates of the environment, they are also prohibitively expensive for many settings.…

计算机视觉与模式识别 · 计算机科学 2020-05-15 Rui Qian , Divyansh Garg , Yan Wang , Yurong You , Serge Belongie , Bharath Hariharan , Mark Campbell , Kilian Q. Weinberger , Wei-Lun Chao

Data augmentation is an important technique to reduce overfitting and improve learning performance, but existing works on data augmentation for 3D point cloud data are based on heuristics. In this work, we instead propose to automatically…

计算机视觉与模式识别 · 计算机科学 2021-12-21 Wanyue Zhang , Xun Xu , Fayao Liu , Le Zhang , Chuan-Sheng Foo

LiDAR-based 3D object detection is essential for autonomous driving systems. However, LiDAR point clouds may appear to have sparsity, uneven distribution, and incomplete structures, significantly limiting the detection performance. In road…

计算机视觉与模式识别 · 计算机科学 2025-04-02 Wanjing Zhang , Chenxing Wang

The joint optimization of the reconstruction and classification error is a hard non convex problem, especially when a non linear mapping is utilized. In order to overcome this obstacle, a novel optimization strategy is proposed, in which a…

The goal of this paper is to classify objects mapped by LiDAR sensor into different classes such as vehicles, pedestrians and bikers. Utilizing a LiDAR-based object detector and Neural Networks-based classifier, a novel real-time object…

计算机视觉与模式识别 · 计算机科学 2019-07-01 Farzad Shafiei Dizaji

Cameras and LiDARs are both important sensors for autonomous driving, playing critical roles in 3D object detection. Camera-LiDAR Fusion has been a prevalent solution for robust and accurate driving perception. In contrast to the vast…

机器人学 · 计算机科学 2024-03-05 Ye Li , Hanjiang Hu , Zuxin Liu , Xiaohao Xu , Xiaonan Huang , Ding Zhao

As deep learning continues to advance, self-supervised learning has made considerable strides. It allows 2D image encoders to extract useful features for various downstream tasks, including those related to vision-based systems.…

计算机视觉与模式识别 · 计算机科学 2026-02-16 Wonjun Jo , Hyunwoo Ha , Kim Ji-Yeon , Hawook Jeong , Tae-Hyun Oh

Segmenting or detecting objects in sparse Lidar point clouds are two important tasks in autonomous driving to allow a vehicle to act safely in its 3D environment. The best performing methods in 3D semantic segmentation or object detection…

计算机视觉与模式识别 · 计算机科学 2022-03-31 Corentin Sautier , Gilles Puy , Spyros Gidaris , Alexandre Boulch , Andrei Bursuc , Renaud Marlet

In self-driving applications, LiDAR data provides accurate information about distances in 3D but lacks the semantic richness of camera data. Therefore, state-of-the-art methods for perception in urban scenes fuse data from both sensor…

计算机视觉与模式识别 · 计算机科学 2023-06-13 Royden Wagner , Marvin Klemp , Carlos Fernandez Lopez

In recent years, the fusion of camera data with LiDAR measurements has emerged as a powerful approach to enhance spatial understanding. This study introduces a novel, hardware-agnostic methodology that generates colourised point clouds from…

计算机视觉与模式识别 · 计算机科学 2025-10-01 Pasindu Ranasinghe , Dibyayan Patra , Bikram Banerjee , Simit Raval

LiDAR's dense, sharp point cloud (PC) representations of the surrounding environment enable accurate perception and significantly improve road safety by offering greater scene awareness and understanding. However, LiDAR's high cost…

计算机视觉与模式识别 · 计算机科学 2025-10-13 William Muckelroy , Mohammed Alsakabi , John Dolan , Ozan Tonguz

In a fully autonomous driving framework, where vehicles operate without human intervention, information sharing plays a fundamental role. In this context, new network solutions have to be designed to handle the large volumes of data…

网络与互联网体系结构 · 计算机科学 2021-03-08 Andrea Varischio , Francesco Mandruzzato , Marcello Bullo , Marco Giordani , Paolo Testolina , Michele Zorzi

Recently, in the field of recommendation systems, linear regression (autoencoder) models have been investigated as a way to learn item similarity. In this paper, we show a connection between a linear autoencoder model and ZCA whitening for…

信息检索 · 计算机科学 2023-08-29 Katsuhiko Hayashi , Kazuma Onishi

This work proposed a 3D autoencoder architecture, named LiLa-Net, which encodes efficient features from real traffic environments, employing only the LiDAR's point clouds. For this purpose, we have real semi-autonomous vehicle, equipped…

计算机视觉与模式识别 · 计算机科学 2025-10-03 Mario Resino , Borja Pérez , Jaime Godoy , Abdulla Al-Kaff , Fernando García

Estimating accurate lane lines in 3D space remains challenging due to their sparse and slim nature. Previous works mainly focused on using images for 3D lane detection, leading to inherent projection error and loss of geometry information.…

计算机视觉与模式识别 · 计算机科学 2023-08-10 Yueru Luo , Xu Yan , Chaoda Zheng , Chao Zheng , Shuqi Mei , Tang Kun , Shuguang Cui , Zhen Li

The past few years have witnessed an increasing interest in improving the perception performance of LiDARs on autonomous vehicles. While most of the existing works focus on developing new deep learning algorithms or model architectures, we…

机器人学 · 计算机科学 2022-05-05 Hanjiang Hu , Zuxin Liu , Sharad Chitlangia , Akhil Agnihotri , Ding Zhao

In this paper, we propose a novel training strategy called SupFusion, which provides an auxiliary feature level supervision for effective LiDAR-Camera fusion and significantly boosts detection performance. Our strategy involves a data…

计算机视觉与模式识别 · 计算机科学 2023-11-01 Yiran Qin , Chaoqun Wang , Zijian Kang , Ningning Ma , Zhen Li , Ruimao Zhang