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Chengju Liu

33 accepted papers

2026

A&B-LO: Continuous-Time LiDAR Odometry with Adaptive Non-Uniform B-Spline Trajectory Representation

ICRA 2026poster

LiDAR odometry, fused by inertial measurement units (IMU), is an essential task in robotics navigation. Unlike the mainstream methods compensate the motion distortion of LiDAR data by high frequency inertial sensors, this paper deals with the distortion with continuous-time trajectory representation…

Cited by 0Scholar
2026

BEVDrive-E2E: Imitation With Bird's Eye View Perception for Interpretable End-to-End Autonomous Driving

RA-L 2026

Imitation learning (IL) for end-to-end autonomous driving (E2E-AD) has made great progress recently in the closed-loop evaluation of the CARLA simulator. However, the causal confusion remains an open problem. To address this issue, we propose the BEVDrive-E2E to explore the interpretability of the e

Cited by 0SourceScholar
2026

Dynamics Are Learned, Not Told: Semi-Supervised Discovery of Latent Dynamics Geometries For Zero-Shot Policy Adaptation

ICML 2026poster

Real-world dynamics shifts pose a critical challenge for reinforcement learning, yet prior methods typically rely on encoding explicitly identified physical parameters into a latent context, a rigid parameterization that proves brittle to unmodeled or compound dynamics variations. We instead investi…

Cited by 0SourceScholar
2026

TerrFlat: Physics-Driven Geometry Representation for Structure-Aware Freespace Detection

ICRA 2026poster

Freespace detection in autonomous driving is limited by the lack of explicit geometric modeling, hindering generalization across complex terrains. Existing approaches are predominantly data-driven and neglect the physical structure of drivable surfaces. We propose Terrain Flat (TerrFlat), a physics-…

Cited by 0SourceScholar
2025

CleanPose: Category-Level Object Pose Estimation via Causal Learning and Knowledge Distillation

ICCV 2025poster

In the effort to achieve robust and generalizable category-level object pose estimation, recent methods primarily focus on learning fundamental representations from data. However, the inherent biases within the data are often overlooked: the repeated training samples and similar environments may mis…

2025

LGPR: Local Feature Learning Brings More Generalizable Visual Place Recognition

IROS 2025

We propose a Visual Place Recognition (VPR) framework by sharing lightweight keypoint extraction modules for local features. Current research on the joint learning of local keypoint matching and VPR is relatively scarce, and the application deployment of real-time spatial computing on edge devices h

Cited by 0SourcecodeScholar
2025

LSW-Net: A Spatio-temporal Self-Supervised Framework for 2D LiDAR-Based Environment Perception

IROS 2025

In the deep learning era, 2D LiDAR perception is often overlooked as research prioritizes 3D point clouds. Yet, 2D LiDAR remains essential for low-cost robotic systems due to its affordability. Despite its simplicity, it faces major challenges-not only in perception but also in learning itself, as d

Cited by 0SourcecodeScholar
2025

Reinforcement Learning-based Optimization of Humanoid Joint Motion Control via Text-driven Human Motion Mapping

IROS 2025

Human motion retargeting for humanoid robots, transferring human motion data to robots for imitation, presents significant challenges but offers considerable potential for real-world applications. Traditionally, this process relies on human demonstrations captured through pose estimation or motion c

Cited by 0SourceScholar
2025

Rethinking the Embodied Gap in Vision-and-Language Navigation: A Holistic Study of Physical and Visual Disparities

ICCV 2025poster

Recent Vision-and-Language Navigation (VLN) advancements are promising, but their idealized assumptions about robot movement and control fail to reflect physically embodied deployment challenges. To bridge this gap, we introduce VLN-PE, a physically realistic VLN platform supporting humanoid, quadru…

2025

Rotation-Equivariant Robot Vision: A Perspective via Correspondence-Matching and Pre-training

IROS 2025

Correspondence matching is a fundamental and crucial task in robot vision. In recent years, deep learning-based keypoint matching techniques have shown outstanding performance in downstream tasks. Conventional learning-based correspondence matching methods rely on large datasets and a specific train

Cited by 0SourceScholar
2024

Accurate Prior-centric Monocular Positioning with Offline LiDAR Fusion

ICRA 2024poster

Unmanned vehicles usually rely on Global Positioning System (GPS) and Light Detection and Ranging (LiDAR) sensors to achieve high-precision localization results for navigation purpose. However, this combination with their associated costs and infrastructure demands, poses challenges for widespread a…

Cited by 3SourceScholar
2024

DVT: Decoupled Dual-Branch View Transformation for Monocular Bird’s Eye View Semantic Segmentation

IROS 2024poster

Monocular Bird’s Eye View (BEV) semantic segmentation is critical for autonomous driving for its inherent advantages in spatial representation and downstream tasks. However, it is challenging to simultaneously learn view transformation and pixel-wise classification. Previous works suffer from non-fl…

Cited by 0SourcecodeScholar
2024

Enhanced Language-guided Robot Navigation with Panoramic Semantic Depth Perception and Cross-modal Fusion

IROS 2024poster

Integrating visual observation with linguistic instruction holds significant promise for enhancing robot navigation across unstructured environments and enriches the human-robot interaction experience. However, while panoramic RGB views furnish robots with extensive environmental visuals, current me…

Cited by 0SourcecodeScholar
2024

GenerOcc: Self-supervised Framework of Real-time 3D Occupancy Prediction for Monocular Generic Cameras

IROS 2024poster

In the context of 3D scene perception tasks, the significance of 3D occupancy prediction has been progressively growing, aiming to forecast the occupancy state of voxels in a discrete 3D space. However, existing methods typically exhibit several limitations, such as restricted adaptability to non-pi…

Cited by 0SourceScholar
2024

InstructDET: Diversifying Referring Object Detection with Generalized Instructions

ICLR 2024poster

We propose InstructDET, a data-centric method for referring object detection (ROD) that localizes target objects based on user instructions. While deriving from referring expressions (REC), the instructions we leverage are greatly diversified to encompass common user intentions related to object det…

2024

MoTE: Reconciling Generalization with Specialization for Visual-Language to Video Knowledge Transfer

NeurIPS 2024poster

Transferring visual-language knowledge from large-scale foundation models for video recognition has proved to be effective. To bridge the domain gap, additional parametric modules are added to capture the temporal information. However, zero-shot generalization diminishes with the increase in the num…

2024

Multimodal Evolutionary Encoder for Continuous Vision-Language Navigation

IROS 2024poster

Can multimodal encoder evolve when facing increasingly tough circumstances? Our work investigates this possibility in the context of continuous vision-language navigation (continuous VLN), which aims to navigate robots under linguistic supervision and visual feedback. We propose a multimodal evoluti…

Cited by 0SourcecodeScholar
2024

Relaxing the Limitations of the Optimal Reciprocal Collision Avoidance Algorithm for Mobile Robots in Crowds

RA-L 2024

The Optimal Reciprocal Collision Avoidance (ORCA) algorithm is widely used for modeling agents in collision avoidance scenarios. However, suffering from limitations such as the improper reciprocal assumption that each agent is supposed to take half the responsibility for collision avoidance, the per

Cited by 5SourceScholar
2024

SG-RoadSeg: End-to-End Collision-Free Space Detection Sharing Encoder Representations Jointly Learned via Unsupervised Deep Stereo

ICRA 2024poster

Collision-free space detection is of utmost importance for autonomous robot perception and navigation. State-of-the-art (SoTA) approaches generally extract features from RGB images and an additional source or modality of 3-D information, such as depth or disparity images, using a pair of independent…

Cited by 2SourceScholar
2024

SNF-Feat: Semantic-Guided Negative-Sample-Free Representation Learning for Local Feature Extraction

IROS 2024poster

Local feature extraction constitutes a foundational module crucial for numerous downstream tasks of computer vision. Its primary challenge lies in the generation of discriminative feature representations. Prior methodologies have employed contrastive learning within their pipelines, yet have encount…

Cited by 0SourceScholar
2024

Vision-and-Language Navigation via Causal Learning

CVPR 2024poster

In the pursuit of robust and generalizable environment perception and language understanding the ubiquitous challenge of dataset bias continues to plague vision-and-language navigation (VLN) agents hindering their performance in unseen environments. This paper introduces the generalized cross-modal…

2023

A Dual Semantic-Aware Recurrent Global-Adaptive Network for Vision-and-Language Navigation

IJCAI 2023poster

Vision-and-Language Navigation (VLN) is a realistic but challenging task that requires an agent to locate the target region using verbal and visual cues. While significant advancements have been achieved recently, there are still two broad limitations: (1) The explicit information mining for signifi…

2023

FDLNet: Boosting Real-time Semantic Segmentation by Image-size Convolution via Frequency Domain Learning

ICRA 2023poster

This paper proposes a novel real-time semantic segmentation network via frequency domain learning, called FDLNet, which revisits the segmentation task from two critical perspectives: spatial structure description and multilevel feature fusion. We first devise an image-size convolution (IS-Conv) as a…

Cited by 6SourcecodeScholar
2023

Multiple Thinking Achieving Meta-Ability Decoupling for Object Navigation

ICML 2023poster

We propose a meta-ability decoupling (MAD) paradigm, which brings together various object navigation methods in an architecture system, allowing them to mutually enhance each other and evolve together. Based on the MAD paradigm, we design a multiple thinking (MT) model that leverages distinct thinki…

Cited by 10SourcePDFScholar
2023

RMRL: Robot Navigation in Crowd Environments With Risk Map-Based Deep Reinforcement Learning

RA-L 2023

Achieving safe and effective navigation in crowds is a crucial yet challenging problem. Recent work has mainly encoded the pedestrian-robot state pairs, which cannot fully capture the interactions among humans. Besides, existing work attempts to achieve “hard” collision avoidance, which may leave no

Cited by 20SourceScholar
2023

Search for or Navigate to? Dual Adaptive Thinking for Object Navigation

ICCV 2023poster

"Search for" or "Navigate to"? When we find a specific object in an unknown environment, the two choices always arise in our subconscious mind. Before we see the target, we search for the target based on prior experience. Once we have seen the target, we can navigate to it by remembering the target…

Cited by 21PDFScholar
2022

HoloSeg: An Efficient Holographic Segmentation Network for Real-time Scene Parsing

ICRA 2022poster

Real-time semantic segmentation is a crucial but challenging dense prediction task for scene parsing. However, the existing CNN-based methods commonly bias the model in favor of speed-boosting compromising spatial resolution due to business requirements and hardware constrains, which impedes the hig…

Cited by 8SourcecodeScholar
2022

Real-Time Trajectory Planning for Autonomous Driving with Gaussian Process and Incremental Refinement

ICRA 2022poster

Real-time kinodynamic trajectory planning in dy-namic environments is critical yet challenging for autonomous driving. In this paper, we propose an efficient trajectory plan-ning system for autonomous driving in complex dynamic sce-narios through iterative and incremental path-speed optimization. Ex…

Cited by 51SourcecodeScholar
2020

PointTrackNet: An End-to-End Network For 3-D Object Detection and Tracking From Point Clouds

RA-L 2020

Recent machine learning-based multi-object tracking (MOT) frameworks are becoming popular for 3-D point clouds. Most traditional tracking approaches use filters (e.g., Kalman filter or particle filter) to predict object locations in a time sequence, however, they are vulnerable to extreme motion con

Cited by 61SourceScholar
2019

A GPS-aided Omnidirectional Visual-Inertial State Estimator in Ubiquitous Environments

IROS 2019poster

The visual-inertial navigation system (VINS) has been a practical approach for state estimation in recent years. In this paper, we propose a general GPS-aided omnidirectional visual-inertial state estimator capable of operating in ubiquitous environments and platforms. Our system consists of two par…

Cited by 59SourceScholar