Search Results for author: Junqiao Zhao

Found 15 papers, 3 papers with code

Towards an Information Theoretic Framework of Context-Based Offline Meta-Reinforcement Learning

no code implementations4 Feb 2024 Lanqing Li, Hai Zhang, Xinyu Zhang, Shatong Zhu, Junqiao Zhao, Pheng-Ann Heng

As a marriage between offline RL and meta-RL, the advent of offline meta-reinforcement learning (OMRL) has shown great promise in enabling RL agents to multi-task and quickly adapt while acquiring knowledge safely.

Meta Reinforcement Learning Offline RL

VNI-Net: Vector Neurons-based Rotation-Invariant Descriptor for LiDAR Place Recognition

no code implementations24 Aug 2023 Gengxuan Tian, Junqiao Zhao, Yingfeng Cai, Fenglin Zhang, Wenjie Mu, Chen Ye

To address the significant information loss when formulating rotation-invariant descriptors, we propose computing distances between features at different layers within the Euclidean space neighborhood.

Computational Efficiency Simultaneous Localization and Mapping

Learning Sequence Descriptor based on Spatio-Temporal Attention for Visual Place Recognition

1 code implementation19 May 2023 Junqiao Zhao, Fenglin Zhang, Yingfeng Cai, Gengxuan Tian, Wenjie Mu, Chen Ye, Tiantian Feng

Visual Place Recognition (VPR) aims to retrieve frames from a geotagged database that are located at the same place as the query frame.

Retrieval Visual Place Recognition

DL-SLOT: Dynamic Lidar SLAM and Object Tracking Based On Graph Optimization

no code implementations23 Feb 2022 Xuebo Tian, Junqiao Zhao, Chen Ye

The states of the static and dynamic objects and ego vehicle in the sliding window are integrated into a unified local optimization framework.

Autonomous Driving Object +6

DSC: Deep Scan Context Descriptor for Large-Scale Place Recognition

no code implementations27 Nov 2021 Jiafeng Cui, Tengfei Huang, Yingfeng Cai, Junqiao Zhao, Lu Xiong, Zhuoping Yu

LiDAR-based place recognition is an essential and challenging task both in loop closure detection and global relocalization.

Loop Closure Detection

Unsupervised Joint Learning of Depth, Optical Flow, Ego-motion from Video

1 code implementation30 May 2021 Jianfeng Li, Junqiao Zhao, Shuangfu Song, Tiantian Feng

Compared with independent training, joint training can make full use of the geometric relationship between geometric elements and provide dynamic and static information of the scene.

Depth Estimation Optical Flow Estimation +1

Dense Dual-Path Network for Real-time Semantic Segmentation

no code implementations21 Oct 2020 Xinneng Yang, Yan Wu, Junqiao Zhao, Feilin Liu

We design a light-weight and powerful backbone with dense connectivity to facilitate feature reuse throughout the whole network and the proposed Dual-Path module (DPM) to sufficiently aggregate multi-scale contexts.

Playing the Game of 2048 Real-Time Semantic Segmentation +1

Detecting Lane and Road Markings at A Distance with Perspective Transformer Layers

no code implementations19 Mar 2020 Zhuoping Yu, Xiaozhou Ren, Yuyao Huang, Wei Tian, Junqiao Zhao

This is due to the fact that distant lane and road markings occupy a small number of pixels in the image, and scales of lane and road markings are inconsistent at various distances and perspectives.

Semantic Segmentation

Occlusion Aware Unsupervised Learning of Optical Flow From Video

1 code implementation4 Mar 2020 Jianfeng Li, Junqiao Zhao, Tiantian Feng, Chen Ye, Lu Xiong

In this paper, we proposed an unsupervised learning method for estimating the optical flow between video frames, especially to solve the occlusion problem.

Optical Flow Estimation

Vision-based Semantic Mapping and Localization for Autonomous Indoor Parking

no code implementations26 Sep 2018 Yewei Huang, Junqiao Zhao, Xudong He, Shaoming Zhang, Tiantian Feng

In this paper, we proposed a novel and practical solution for the real-time indoor localization of autonomous driving in parking lots.

Autonomous Driving Indoor Localization

VH-HFCN based Parking Slot and Lane Markings Segmentation on Panoramic Surround View

no code implementations19 Apr 2018 Yan Wu, Tao Yang, Junqiao Zhao, Linting Guan, Wei Jiang

At the same time, we proposed a highly fused convolutional network (HFCN) based segmentation method for parking slot and lane markings based on the PSV dataset.

Segmentation

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