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Xiaohan Li

11 accepted papers

2026

Geometry-Aware 6-DoF Grasp Learning From Stacked Point Clouds in Unstructured Scenes

RA-L 2026

To address the challenge of robust 6-DoF grasp prediction in cluttered, unstructured environments, this paper proposes a geometry-aware two-stage grasping framework. First, a plug-and-play Structural Edge-aware Keypoint Extractor is introduced to selectively retain salient edge geometry while mitiga

Cited by 0SourceScholar
2026

Ov3R: Open-Vocabulary Semantic 3D Reconstruction from RGB Videos

CVPR 2026

We present Ov3R, a novel framework for open-vocabulary semantic 3D reconstruction from RGB video streams, designed to advance Spatial AI. The system features two key components: CLIP3R, a CLIP-informed 3D reconstruction module that predicts dense point maps from overlapping clips alongside object-le

Cited by 0SourceScholar
2026

Segment and Matte Anything in a Unified Model

AAAI 2026technical

Segment Anything (SAM) has recently pushed the boundaries of segmentation by demonstrating remarkable zero-shot generalization and flexible prompting after training on over one billion masks. Despite this, its mask prediction accuracy often falls short of the precision required in real-world applica

Cited by 0SourcePDFScholar
2025

CODE: COllaborative Visual-UWB SLAM for Online Large-Scale Metric DEnse Mapping

IROS 2025

This paper presents a novel collaborative online dense mapping system for multiple Unmanned Aerial Vehicles (UAVs). The system confers two primary benefits: it facilitates simultaneous UAVs co-localization and real-time dense map reconstruction, and it recovers the metric scale even in GNSS-denied c

Cited by 0SourceScholar
2025

Cluster-ALIV: Aerial LiDAR-Inertia-Visual Dense Reconstruction for Cluster UAV

RA-L 2025

Unmanned aerial vehicles (UAVs) equipped with LiDAR, camera, and Inertial Measurement Unit sensors are increasingly utilized for real-time dense reconstruction in large-scale rescue operations and environmental monitoring, among others. However, achieving algorithmic robustness remains challenging d

Cited by 2SourceScholar
2025

DR-Encoder: Encode Low-rank Gradients with Random Prior for Large Language Models Differentially Privately

AAAI 2025technical

The emergence of the large language model (LLM) has shown its superiority in a wide range of disciplines, including language understanding and translation, relational logic reasoning, and even partial differential equations solving. The transformer is the pervasive backbone architecture for the foun…

2024

Enhancing Short-and Long-Term Sea Surface Temperature Forecasting with a Static and Dynamic Learnable Personalized Graph Convolution Network

ICASSP 2024accepted

Sea surface temperature (SST) plays an important role in our Earth’s atmosphere, wielding significant influence over both local and global climates and profoundly impacting ecosystems. However, this task presents unique challenges due to the inherent complexity and uncertainty within ocean systems.…

Cited by 0SourceScholar
2024

Event-Triggered Learning-Based Control of Quadrotors for Accurate Agile Trajectory Tracking

RA-L 2024

Accurate tracking control of agile quadrotors is challenging because of complicated aerodynamic effects. In this letter, we develop a tunable event-triggered learning-based control framework for quadrotors to achieve agile trajectory tracking in the presence of aerodynamic effects. A novel Gaussian

Cited by 5SourceScholar
2024

mini-PointNetPlus: A Local Feature Descriptor in Deep Learning Model for Real-time 3D Environment Perception

IROS 2024poster

Common deep learning models for 3D real-time environment perception often use pillarization/voxelization methods to convert point cloud data into pillars/voxels and then process it with a 2D/3D convolutional neural network (CNN). The pioneer work PointNet has been widely applied as a local feature d…

Cited by 0SourceScholar
2022

Optimal Path Following Control With Efficient Computation for Snake Robots Subject to Multiple Constraints and Unknown Frictions

RA-L 2022

This letter proposes a real-time optimal robust path following control scheme for planar snake robots without sideslip constraints using model predictive control (MPC). One of the features is that a linear double-integrator model rather than the complex dynamic model of snake robots is used for the

Cited by 15SourceScholar