Search Results for author: Lei Tai

Found 19 papers, 9 papers with code

MLOD: Awareness of Extrinsic Perturbation in Multi-LiDAR 3D Object Detection for Autonomous Driving

2 code implementations29 Sep 2020 Jianhao Jiao, Peng Yun, Lei Tai, Ming Liu

To minimize the detrimental effect of extrinsic perturbation, we propagate an uncertainty prior on each point of input point clouds, and use this information to boost an approach for 3D geometric tasks.

3D Object Detection Autonomous Driving +1

MonoPair: Monocular 3D Object Detection Using Pairwise Spatial Relationships

1 code implementation CVPR 2020 Yongjian Chen, Lei Tai, Kai Sun, Mingyang Li

Monocular 3D object detection is an essential component in autonomous driving while challenging to solve, especially for those occluded samples which are only partially visible.

Autonomous Driving Monocular 3D Object Detection +3

Utilizing Eye Gaze to Enhance the Generalization of Imitation Networks to Unseen Environments

no code implementations10 Jul 2019 Congcong Liu, Yuying Chen, Lei Tai, Ming Liu, Bertram Shi

Vision-based autonomous driving through imitation learning mimics the behaviors of human drivers by training on pairs of data of raw driver-view images and actions.

Autonomous Driving Imitation Learning

Gaze Training by Modulated Dropout Improves Imitation Learning

no code implementations17 Apr 2019 Yuying Chen, Congcong Liu, Lei Tai, Ming Liu, Bertram E. Shi

The basic idea behind behavioral cloning is to have the neural network learn from observing a human expert's behavior.

Autonomous Driving Imitation Learning

Focal Loss in 3D Object Detection

1 code implementation17 Sep 2018 Peng Yun, Lei Tai, Yu-An Wang, Chengju Liu, Ming Liu

Inspired by the recent use of focal loss in image-based object detection, we extend this hard-mining improvement of binary cross entropy to point-cloud-based object detection and conduct experiments to show its performance based on two different 3D detectors: 3D-FCN and VoxelNet.

3D Object Detection Autonomous Driving +2

PointSeg: Real-Time Semantic Segmentation Based on 3D LiDAR Point Cloud

3 code implementations17 Jul 2018 Yu-An Wang, Tianyue Shi, Peng Yun, Lei Tai, Ming Liu

We take the spherical image, which is transformed from the 3D LiDAR point clouds, as input of the convolutional neural networks (CNNs) to predict the point-wise semantic map.

3D Object Detection Autonomous Driving +2

VR-Goggles for Robots: Real-to-sim Domain Adaptation for Visual Control

no code implementations1 Feb 2018 Jingwei Zhang, Lei Tai, Peng Yun, Yufeng Xiong, Ming Liu, Joschka Boedecker, Wolfram Burgard

In this paper, we deal with the reality gap from a novel perspective, targeting transferring Deep Reinforcement Learning (DRL) policies learned in simulated environments to the real-world domain for visual control tasks.

Domain Adaptation Style Transfer

Socially Compliant Navigation through Raw Depth Inputs with Generative Adversarial Imitation Learning

1 code implementation6 Oct 2017 Lei Tai, Jingwei Zhang, Ming Liu, Wolfram Burgard

Experiments show that our GAIL-based approach greatly improves the safety and efficiency of the behavior of mobile robots from pure behavior cloning.

Autonomous Vehicles Imitation Learning +1

Towards continuous control of flippers for a multi-terrain robot using deep reinforcement learning

no code implementations25 Sep 2017 Giuseppe Paolo, Lei Tai, Ming Liu

In this paper we focus on developing a control algorithm for multi-terrain tracked robots with flippers using a reinforcement learning (RL) approach.

Continuous Control Reinforcement Learning (RL)

Neural SLAM: Learning to Explore with External Memory

1 code implementation29 Jun 2017 Jingwei Zhang, Lei Tai, Ming Liu, Joschka Boedecker, Wolfram Burgard

We present an approach for agents to learn representations of a global map from sensor data, to aid their exploration in new environments.

Reinforcement Learning (RL) Simultaneous Localization and Mapping

Extrinsic Calibration of 3D Range Finder and Camera without Auxiliary Object or Human Intervention

no code implementations2 Mar 2017 Qinghai Liao, Ming Liu, Lei Tai, Haoyang Ye

In this paper, we proposed a novel extrinsic calibration approach for the extrinsic calibration of range and image sensors.

Virtual-to-real Deep Reinforcement Learning: Continuous Control of Mobile Robots for Mapless Navigation

2 code implementations1 Mar 2017 Lei Tai, Giuseppe Paolo, Ming Liu

We present a learning-based mapless motion planner by taking the sparse 10-dimensional range findings and the target position with respect to the mobile robot coordinate frame as input and the continuous steering commands as output.

Continuous Control Navigate +2

A Survey of Deep Network Solutions for Learning Control in Robotics: From Reinforcement to Imitation

1 code implementation21 Dec 2016 Lei Tai, Jingwei Zhang, Ming Liu, Joschka Boedecker, Wolfram Burgard

We carry out our discussions on the two main paradigms for learning control with deep networks: deep reinforcement learning and imitation learning.

Imitation Learning reinforcement-learning +1

Towards Cognitive Exploration through Deep Reinforcement Learning for Mobile Robots

no code implementations6 Oct 2016 Lei Tai, Ming Liu

We believe it is the first time that raw sensor information is used to build cognitive exploration strategy for mobile robots through end-to-end deep reinforcement learning.

reinforcement-learning Reinforcement Learning (RL)

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