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Monocular depth estimation, which plays a crucial role in understanding 3D scene geometry, is an ill-posed problem. Recent methods have gained significant improvement by exploring image-level information and hierarchical features from deep…

Computer Vision and Pattern Recognition · Computer Science 2018-06-08 Huan Fu , Mingming Gong , Chaohui Wang , Kayhan Batmanghelich , Dacheng Tao

SLAM (Simultaneous Localisation and Mapping) is a crucial component for robotic systems, providing a map of an environment, the current location and previous trajectory of a robot. While 3D LiDAR SLAM has received notable improvements in…

Robotics · Computer Science 2025-04-29 Leon Davies , Baihua Li , Mohamad Saada , Simon Sølvsten , Qinggang Meng

Autonomous navigation for legged robots in complex and dynamic environments relies on robust simultaneous localization and mapping (SLAM) systems to accurately map surroundings and localize the robot, ensuring safe and efficient operation.…

Due to budgetary constraints, indoor navigation typically employs 2D LiDAR rather than 3D LiDAR. However, the utilization of 2D LiDAR in Simultaneous Localization And Mapping (SLAM) frequently encounters challenges related to motion…

Robotics · Computer Science 2024-04-24 Bin Zhang , Zexin Peng , Bi Zeng , Junjie Lu

Recent work in visual SLAM has shown the effectiveness of using deep network backbones. Despite excellent accuracy, however, such approaches are often expensive to run or do not generalize well zero-shot. Their runtime can also fluctuate…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Lahav Lipson , Zachary Teed , Jia Deng

Monocular cameras coupled with inertial measurements generally give high performance visual inertial odometry. However, drift can be significant with long trajectories, especially when the environment is visually challenging. In this paper,…

Robotics · Computer Science 2020-06-02 Yanjun Cao , Giovanni Beltrame

We propose a visual SLAM method by predicting and updating line flows that represent sequential 2D projections of 3D line segments. While feature-based SLAM methods have achieved excellent results, they still face problems in challenging…

Computer Vision and Pattern Recognition · Computer Science 2021-03-18 Qiuyuan Wang , Zike Yan , Junqiu Wang , Fei Xue , Wei Ma , Hongbin Zha

Classical Visual Simultaneous Localization and Mapping (VSLAM) algorithms can be easily induced to fail when either the robot's motion or the environment is too challenging. The use of Deep Neural Networks to enhance VSLAM algorithms has…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Hudson M. S. Bruno , Esther L. Colombini

We propose XVO, a semi-supervised learning method for training generalized monocular Visual Odometry (VO) models with robust off-the-self operation across diverse datasets and settings. In contrast to standard monocular VO approaches which…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Lei Lai , Zhongkai Shangguan , Jimuyang Zhang , Eshed Ohn-Bar

Mobile AR applications benefit from fast initialization to display world-locked effects instantly. However, standard visual odometry or SLAM algorithms require motion parallax to initialize (see Figure 1) and, therefore, suffer from delayed…

Computer Vision and Pattern Recognition · Computer Science 2021-08-02 Alejo Concha , Michael Burri , Jesús Briales , Christian Forster , Luc Oth

Deep learning algorithms have driven expressive progress in many complex tasks. The loss function is a core component of deep learning techniques, guiding the learning process of neural networks. This paper contributes by introducing a…

Computer Vision and Pattern Recognition · Computer Science 2024-01-22 André O. Françani , Marcos R. O. A. Maximo

Simultaneous Localization and Mapping (SLAM) has become a critical technology for intelligent transportation systems and autonomous robots and is widely used in autonomous driving. However, traditional manual feature-based methods in…

Computer Vision and Pattern Recognition · Computer Science 2024-07-03 Zhiqi Zhao , Chang Wu , Xiaotong Kong , Zejie Lv , Xiaoqi Du , Qiyan Li

Light Detection and Ranging (LiDAR) based Simultaneous Localization and Mapping (SLAM) has drawn increasing interests in autonomous driving. However, LiDAR-SLAM suffers from accumulating errors which can be significantly mitigated by Global…

Robotics · Computer Science 2020-12-07 Tao Li , Ling Pei , Yan Xiang , Qi Wu , Songpengcheng Xia , Lihao Tao , Wenxian Yu

Simultaneous Localization and Mapping (SLAM) plays an important role in robot autonomy. Reliability and efficiency are the two most valued features for applying SLAM in robot applications. In this paper, we consider achieving a reliable…

Robotics · Computer Science 2023-10-09 Shiquan Yi , Yang Lyu , Lin Hua , Quan Pan , Chunhui Zhao

Determining the distance between the objects in a scene and the camera sensor from 2D images is feasible by estimating depth images using stereo cameras or 3D cameras. The outcome of depth estimation is relative distances that can be used…

Computer Vision and Pattern Recognition · Computer Science 2021-11-03 Armin Masoumian , David G. F. Marei , Saddam Abdulwahab , Julian Cristiano , Domenec Puig , Hatem A. Rashwan

Monocular visual odometry (VO) has attracted extensive research attention by providing real-time vehicle motion from cost-effective camera images. However, state-of-the-art optimization-based monocular VO methods suffer from the scale…

Computer Vision and Pattern Recognition · Computer Science 2022-03-14 Sen Zhang , Jing Zhang , Dacheng Tao

Visual Odometry (VO) plays a pivotal role in autonomous systems, with a principal challenge being the lack of depth information in camera images. This paper introduces OCC-VO, a novel framework that capitalizes on recent advances in deep…

Robotics · Computer Science 2024-03-27 Heng Li , Yifan Duan , Xinran Zhang , Haiyi Liu , Jianmin Ji , Yanyong Zhang

It is well known that visual SLAM systems based on dense matching are locally accurate but are also susceptible to long-term drift and map corruption. In contrast, feature matching methods can achieve greater long-term consistency but can…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Xingrui Yang , Yuhang Ming , Zhaopeng Cui , Andrew Calway

The mobile robot relies on SLAM (Simultaneous Localization and Mapping) to provide autonomous navigation and task execution in complex and unknown environments. However, it is hard to develop a dedicated algorithm for mobile robots due to…

This paper explores how deep learning techniques can improve visual-based SLAM performance in challenging environments. By combining deep feature extraction and deep matching methods, we introduce a versatile hybrid visual SLAM system…

Robotics · Computer Science 2024-06-05 Zhang Xiao , Shuaixin Li