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3D scene flow estimation is a vital tool in perceiving our environment given depth or range sensors. Unlike optical flow, the data is usually sparse and in most cases partially occluded in between two temporal samplings. Here we propose a…

计算机视觉与模式识别 · 计算机科学 2021-04-20 Bojun Ouyang , Dan Raviv

Although LiDAR sensors are crucial for autonomous systems due to providing precise depth information, they struggle with capturing fine object details, especially at a distance, due to sparse and non-uniform data. Recent advances introduced…

计算机视觉与模式识别 · 计算机科学 2023-09-19 Tiago Cortinhal , Idriss Gouigah , Eren Erdal Aksoy

The development of aerial autonomy has enabled aerial robots to fly agilely in complex environments. However, dodging fast-moving objects in flight remains a challenge, limiting the further application of unmanned aerial vehicles (UAVs).…

机器人学 · 计算机科学 2021-03-12 Botao He , Haojia Li , Siyuan Wu , Dong Wang , Zhiwei Zhang , Qianli Dong , Chao Xu , Fei Gao

Smart monitoring using three-dimensional (3D) image sensors has been attracting attention in the context of smart cities. In smart monitoring, object detection from point cloud data acquired by 3D image sensors is implemented for detecting…

计算机视觉与模式识别 · 计算机科学 2022-09-27 Kairi Tokuda , Ryoichi Shinkuma , Takehiro Sato , Eiji Oki

Modeling and understanding the environment is an essential task for autonomous driving. In addition to the detection of objects, in complex traffic scenarios the motion of other road participants is of special interest. Therefore, we…

机器人学 · 计算机科学 2022-05-06 Marcel Schreiber , Vasileios Belagiannis , Claudius Gläser , Klaus Dietmayer

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

Scene flow depicts the dynamics of a 3D scene, which is critical for various applications such as autonomous driving, robot navigation, AR/VR, etc. Conventionally, scene flow is estimated from dense/regular RGB video frames. With the…

计算机视觉与模式识别 · 计算机科学 2021-12-07 Haiyan Wang , Jiahao Pang , Muhammad A. Lodhi , Yingli Tian , Dong Tian

In this paper, we propose to combine detections from background subtraction and from a multiclass object detector for multiple object tracking (MOT) in urban traffic scenes. These objects are associated across frames using spatial, colour…

计算机视觉与模式识别 · 计算机科学 2019-05-17 Hui-Lee Ooi , Guillaume-Alexandre Bilodeau , Nicolas Saunier

3D object detection plays an important role in a large number of real-world applications. It requires us to estimate the localizations and the orientations of 3D objects in real scenes. In this paper, we present a new network architecture…

计算机视觉与模式识别 · 计算机科学 2019-09-25 Xin Zhao , Zhe Liu , Ruolan Hu , Kaiqi Huang

Sliding window is one direct way to extend a successful recognition system to handle the more challenging detection problem. While action recognition decides only whether or not an action is present in a pre-segmented video sequence, action…

计算机视觉与模式识别 · 计算机科学 2015-12-29 Moustafa Meshry , Mohamed E. Hussein , Marwan Torki

Making predictions of future frames is a critical challenge in autonomous driving research. Most of the existing methods for video prediction attempt to generate future frames in simple and fixed scenes. In this paper, we propose a novel…

计算机视觉与模式识别 · 计算机科学 2018-06-01 Henglai Wei , Xiaochuan Yin , Penghong Lin

We propose an adversarial contextual model for detecting moving objects in images. A deep neural network is trained to predict the optical flow in a region using information from everywhere else but that region (context), while another…

计算机视觉与模式识别 · 计算机科学 2019-04-16 Yanchao Yang , Antonio Loquercio , Davide Scaramuzza , Stefano Soatto

While 2D object detection has improved significantly over the past, real world applications of computer vision often require an understanding of the 3D layout of a scene. Many recent approaches to 3D detection use LiDAR point clouds for…

计算机视觉与模式识别 · 计算机科学 2020-11-20 Jihao Andreas Lin , Jakob Brünker , Daniel Fährmann

This report presents our method which wins the nuScenes3D Detection Challenge [17] held in Workshop on Autonomous Driving(WAD, CVPR 2019). Generally, we utilize sparse 3D convolution to extract rich semantic features, which are then fed…

计算机视觉与模式识别 · 计算机科学 2019-08-27 Benjin Zhu , Zhengkai Jiang , Xiangxin Zhou , Zeming Li , Gang Yu

The purpose of this work is to review the state-of-the-art LiDAR-based 3D object detection methods, datasets, and challenges. We describe novel data augmentation methods, sampling strategies, activation functions, attention mechanisms, and…

计算机视觉与模式识别 · 计算机科学 2022-04-04 Walter Zimmer , Emec Ercelik , Xingcheng Zhou , Xavier Jair Diaz Ortiz , Alois Knoll

Consistent motion estimation is fundamental for all mobile autonomous systems. While this sounds like an easy task, often, it is not the case because of changing environmental conditions affecting odometry obtained from vision, Lidar, or…

机器人学 · 计算机科学 2022-04-20 Karim Haggag , Sven Lange , Tim Pfeifer , Peter Protzel

Scene flow is the three-dimensional (3D) motion field of a scene. It provides information about the spatial arrangement and rate of change of objects in dynamic environments. Current learning-based approaches seek to estimate the scene flow…

计算机视觉与模式识别 · 计算机科学 2020-11-03 Jhony Kaesemodel Pontes , James Hays , Simon Lucey

Moving object detection and segmentation is an essential task in the Autonomous Driving pipeline. Detecting and isolating static and moving components of a vehicle's surroundings are particularly crucial in path planning and localization…

计算机视觉与模式识别 · 计算机科学 2022-01-25 Sambit Mohapatra , Mona Hodaei , Senthil Yogamani , Stefan Milz , Heinrich Gotzig , Martin Simon , Hazem Rashed , Patrick Maeder

Processing point clouds using deep neural networks is still a challenging task. Most existing models focus on object detection and registration with deep neural networks using point clouds. In this paper, we propose a deep model that learns…

计算机视觉与模式识别 · 计算机科学 2021-03-08 Farzan Erlik Nowruzi , Dhanvin Kolhatkar , Prince Kapoor , Robert Laganiere

In egocentric videos, actions occur in quick succession. We capitalise on the action's temporal context and propose a method that learns to attend to surrounding actions in order to improve recognition performance. To incorporate the…

计算机视觉与模式识别 · 计算机科学 2021-11-02 Evangelos Kazakos , Jaesung Huh , Arsha Nagrani , Andrew Zisserman , Dima Damen