Robust Visual SLAM with Point and Line Features
This improves visual SLAM for robotics and AR/VR applications, though it is incremental over existing methods.
The paper tackles the problem of robust visual SLAM by incorporating both point and line features, using ORB-SLAM as a base. The result shows the system outperforms state-of-the-art methods in synthetic and real-world experiments.
In this paper, we develop a robust efficient visual SLAM system that utilizes heterogeneous point and line features. By leveraging ORB-SLAM [1], the proposed system consists of stereo matching, frame tracking, local mapping, loop detection, and bundle adjustment of both point and line features. In particular, as the main theoretical contributions of this paper, we, for the first time, employ the orthonormal representation as the minimal parameterization to model line features along with point features in visual SLAM and analytically derive the Jacobians of the re-projection errors with respect to the line parameters, which significantly improves the SLAM solution. The proposed SLAM has been extensively tested in both synthetic and real-world experiments whose results demonstrate that the proposed system outperforms the state-of-the-art methods in various scenarios.