Feature-enhanced visual-inertial SLAM method for low-texture dynamic environment

XIE Mingyang; XU Xin; YANG Chen; YU Zirui; WANG Yao

doi:10.11959/j.issn.2096-6652.202543

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Feature-enhanced visual-inertial SLAM method for low-texture dynamic environment

Papers and Reports | 更新时间：2026-03-18

- Feature-enhanced visual-inertial SLAM method for low-texture dynamic environment
- Chinese Journal of Intelligent Science and Technology Vol. 7, Issue 4, Pages: 433-443(2025)
- 作者机构：
  
  南京航空航天大学自动化学院，江苏南京 211106
- 作者简介：
- 基金信息：
  
  The National Key Research and Development Program of China(2023YFB4704400);The National Natural Science Foundation of China(62373186);The Natural Science Foundation of Jiangsu Province(BK20231440);The Fundamental Research Funds for the Central Universities(NZ2024-033)
- DOI：10.11959/j.issn.2096-6652.202543
  CLC： TP242.6
- Received：21 June 2025，
  
  Revised：2025-12-02，
  
  Accepted：04 December 2025，
  
  Published：15 December 2025
- 稿件说明：
移动端阅览
解明扬,徐鑫,杨晨等.低纹理动态场景下基于特征增强的视觉惯导SLAM方法[J].智能科学与技术学报,2025,07(04):433-443.

XIE Mingyang,XU Xin,YANG Chen,et al.Feature-enhanced visual-inertial SLAM method for low-texture dynamic environment[J].Chinese Journal of Intelligent Science and Technology,2025,07(04):433-443.
解明扬,徐鑫,杨晨等.低纹理动态场景下基于特征增强的视觉惯导SLAM方法[J].智能科学与技术学报,2025,07(04):433-443. DOI： 10.11959/j.issn.2096-6652.202543.

XIE Mingyang,XU Xin,YANG Chen,et al.Feature-enhanced visual-inertial SLAM method for low-texture dynamic environment[J].Chinese Journal of Intelligent Science and Technology,2025,07(04):433-443. DOI： 10.11959/j.issn.2096-6652.202543.

摘要

针对低纹理动态场景下SLAM系统难以提取足够多的稳定特征点且易发生错误匹配，进而导致系统位姿估计精度与鲁棒性不足的难题，提出一种面向低纹理动态场景的单目视觉惯导SLAM系统，实现特征提取匹配与动态特征点判别的性能提升。首先，用基于深度学习的SuperPoint特征提取与LightGlue特征匹配模块代替现有ORB-SLAM3系统前端，提升低纹理区域特征提取与匹配的鲁棒性；其次，结合YOLOv8-seg实现动态区域语义分割，利用IMU预积分估计相机位姿变化，通过构建联合的动态点剔除机制实现更细粒度的动态点剔除，提高动态干扰场景下系统的精度和鲁棒性。最后，在公开数据集和实际场景中进行对比实验，验证所提方法的性能。结果表明，相较于现有基于视觉及视觉惯导的SLAM方法，所提系统在实际低纹理动态场景中绝对轨迹误差的均方根误差降低88.4%及以上，标准差降低90%及以上，具有更高的定位精度和鲁棒性。

Abstract

To address the challenge of SLAM systems struggling to extract sufficient stable feature points and being prone to incorrect matching in low-texture dynamic environments

which leads to poor accuracy and robustness in pose estimation

this paper proposes a monocular visual-inertial SLAM system specifically designed for low-texture dynamic scenarios. The proposed method achieves improved performance in feature extraction

matching

and dynamic feature point discrimination. First

a deep learning-based SuperPoint feature extraction and LightGlue feature matching modules are employed to replace the existing ORB-SLAM3 frontend

significantly enhancing the robustness of feature extraction and matching in weak texture areas. Second

by integrating YOLO-seg for dynamic region semantic segmentation and leveraging IMU pre-integration to estimate camera pose changes

a joint dynamic point removal mechanism is constructed to achieve finer-grained dynamic point filtering

thereby enhancing system accuracy and robustness in dynamic interference scenarios. Finally

the performance of the proposed method was validated through comparative experiments on public datasets and real-world scenarios

and the proposed system achieves a reduction of 88.4% or more in the root mean square error of absolute trajectory error

and 90% or more in the standard deviation in real-world low-texture dynamic scenarios

exhibiting superior positioning accuracy and robustness when compared with existing visual and visual-inertial SLAM approaches.

关键词

Keywords

references

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