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Visual SLAM shows significant progress in recent years due to high attention from vision community but still, challenges remain for low-textured environments. Feature based visual SLAMs do not produce reliable camera and structure estimates…

Computer Vision and Pattern Recognition · Computer Science 2019-01-15 Soumyadip Maity , Arindam Saha , Brojeshwar Bhowmick

The technology for Visual Odometry (VO) that estimates the position and orientation of the moving object through analyzing the image sequences captured by on-board cameras, has been well investigated with the rising interest in autonomous…

Computer Vision and Pattern Recognition · Computer Science 2021-05-21 Ran Zhu , Mingkun Yang , Wang Liu , Rujun Song , Bo Yan , Zhuoling Xiao

Multi-camera systems have been shown to improve the accuracy and robustness of SLAM estimates, yet state-of-the-art SLAM systems predominantly support monocular or stereo setups. This paper presents a generic sparse visual SLAM framework…

This paper presents a novel dense optical-flow algorithm to solve the monocular simultaneous localization and mapping (SLAM) problem for ground or aerial robots. Dense optical flow can effectively provide the ego-motion of the vehicle while…

Robotics · Computer Science 2021-10-01 Yonhon Ng , Hongdong Li , Jonghyuk Kim

Estimating human motion from video is an active research area due to its many potential applications. Most state-of-the-art methods predict human shape and posture estimates for individual images and do not leverage the temporal information…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Dorian F. Henning , Tristan Laidlow , Stefan Leutenegger

A major limitation of minimally invasive surgery is the difficulty in accurately locating the internal anatomical structures of the target organ due to the lack of tactile feedback and transparency. Augmented reality (AR) offers a promising…

Robotics · Computer Science 2024-09-19 Jingwei Song , Ray Zhang , Wenwei Zhang , Hao Zhou , Maani Ghaffari

Monocular visual-inertial odometry (VIO) is a low-cost solution to provide high-accuracy, low-drifting pose estimation. However, it has been meeting challenges in vehicular scenarios due to limited dynamics and lack of stable features. In…

Robotics · Computer Science 2023-06-21 Yuxuan Zhou , Xingxing Li , Shengyu Li , Xuanbin Wang , Zhiheng Shen

SLAM systems are mainly applied for robot navigation while research on feasibility for motion planning with SLAM for tasks like bin-picking, is scarce. Accurate 3D reconstruction of objects and environments is important for planning motion…

Computer Vision and Pattern Recognition · Computer Science 2018-03-07 Sergey Triputen , Atmaraaj Gopal , Thomas Weber , Christian Hofert , Kristiaan Schreve , Matthias Ratsch

Learning-based visual odometry (VO) algorithms achieve remarkable performance on common static scenes, benefiting from high-capacity models and massive annotated data, but tend to fail in dynamic, populated environments. Semantic…

Computer Vision and Pattern Recognition · Computer Science 2023-05-02 Shihao Shen , Yilin Cai , Wenshan Wang , Sebastian Scherer

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.…

Recently there has been a growing interest in category-level object pose and size estimation, and prevailing methods commonly rely on single view RGB-D images. However, one disadvantage of such methods is that they require accurate depth…

Computer Vision and Pattern Recognition · Computer Science 2024-03-25 Jiaqi Yang , Yucong Chen , Xiangting Meng , Chenxin Yan , Min Li , Ran Cheng , Lige Liu , Tao Sun , Laurent Kneip

This work proposes a novel SLAM framework for stereo and visual inertial odometry estimation. It builds an efficient and robust parametrization of co-planar points and lines which leverages specific geometric constraints to improve camera…

Robotics · Computer Science 2020-09-29 Xin Li , Yanyan Li , Evin Pınar Örnek , Jinlong Lin , Federico Tombari

This paper surveys the state-of-the-art in the nexus of SLAM and Wireless Communications, attributing the bidirectional impact of each with a focus on visual SLAM (V-SLAM) integration. We provide an overview of key concepts related to…

A common prerequisite for evaluating a visual(-inertial) odometry (VO/VIO) algorithm is to align the timestamps and the reference frame of its estimated trajectory with a reference ground-truth derived from a system of superior precision,…

Robotics · Computer Science 2024-04-25 Zichao Shu , Lijun Li , Rui Wang , Zetao Chen

Odometer-aided visual-inertial SLAM systems typically have a good performance for navigation of wheeled platforms, while they usually suffer from degenerate cases before the first turning. In this paper, firstly we perform an observability…

Robotics · Computer Science 2021-02-23 Jinxu Liu , Wei Gao , Zhanyi Hu

Accurate and robust object state estimation enables successful object manipulation. Visual sensing is widely used to estimate object poses. However, in a cluttered scene or in a tight workspace, the robot's end-effector often occludes the…

Robotics · Computer Science 2018-05-16 Kuan-Ting Yu , Alberto Rodriguez

Monocular visual odometry consists of the estimation of the position of an agent through images of a single camera, and it is applied in autonomous vehicles, medical robots, and augmented reality. However, monocular systems suffer from the…

Computer Vision and Pattern Recognition · Computer Science 2023-01-09 André O. Françani , Marcos R. O. A. Maximo

Visual Odometry (VO) is crucial for autonomous robotic navigation, especially in GPS-denied environments like planetary terrains. To improve robustness, recent model-based VO systems have begun combining standard and event-based cameras.…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Roberto Pellerito , Marco Cannici , Daniel Gehrig , Joris Belhadj , Olivier Dubois-Matra , Massimo Casasco , Davide Scaramuzza

We present a generic framework for scale-aware direct monocular odometry based on depth prediction from a deep neural network. In contrast with previous methods where depth information is only partially exploited, we formulate a novel depth…

Robotics · Computer Science 2022-07-25 Carlos Campos , Juan D. Tardós

Monocular visual simultaneous localization and mapping (V-SLAM) is nowadays an irreplaceable tool in mobile robotics and augmented reality, where it performs robustly. However, human colonoscopies pose formidable challenges like occlusions,…

Robotics · Computer Science 2024-05-28 Richard Elvira , Juan D. Tardós , José M. M. Montiel