Jiajie Zhang (张嘉杰)

About Me

I am a graduate student at ShanghaiTech University pursuing a Master’s degree in Computer Science. Since 2023, I have been conducting research at the MARS Lab at ShanghaiTech University, advised by Professor Soeren Schwertfeger, focusing on cutting-edge areas including Mobile Robotics and Embodied AI.

Publications

Generation of Indoor Open Street Maps for Robot Navigation from CAD Files

Avaliable on arXiv preprint arXiv:2507.00552, 2025

This paper presents a complete and automated system to convert architectural Computer-Aided Design (CAD) files into a hierarchical topometric OpenStreetMap (OSM) representation for robust, life-long robot navigation. The method overcomes the limitations of traditional SLAM by leveraging permanent structural information, employing a multi-stage pipeline that includes topological segmentation, semantic text association, and multi-floor fusion to generate semantically rich and topologically correct maps.

CAD2OSM Generation Pipeline Teaser

Intelligent LiDAR Navigation: Leveraging External Information and Semantic Maps with LLM as Copilot

Accepted by IROS2025, 2025

This study enhances robot navigation by integrating Large Language Models (LLMs) with ROS move_base, using osmAG for semantic mapping. The approach combines human-like contextual understanding with traditional navigation, improving adaptability and robustness.

LLM-Copilot-Overview

Neural Surfel Reconstruction: Addressing Loop Closure Challenges in Large-Scale 3D Neural Scene Mapping

Published on MDPI Sensors, 2024

This paper introduces a novel neural surfel-based method for large-scale 3D scene reconstruction, addressing challenges in loop closure and bundle adjustment. By integrating neural descriptors with surfels and optimizing surfel associations, the approach achieves improved reconstruction accuracy and significantly reduces file sizes compared to traditional methods.

Neural Surfel Reconstruction Teaser
Neural Surfel Reconstruction Overview