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This paper presents MFCalib, an innovative extrinsic calibration technique for LiDAR and RGB camera that operates automatically in targetless environments with a single data capture. At the heart of this method is using a rich set of edge…

Robotics · Computer Science 2024-09-04 Tianyong Ye , Wei Xu , Chunran Zheng , Yukang Cui

In order to fuse measurements from multiple sensors mounted on a mobile robot, it is needed to express them in a common reference system through their relative spatial transformations. In this paper, we present a method to estimate the full…

Multi-camera systems are an important sensor platform for intelligent systems such as self-driving cars. Pattern-based calibration techniques can be used to calibrate the intrinsics of the cameras individually. However, extrinsic…

Computer Vision and Pattern Recognition · Computer Science 2020-09-17 Yukai Lin , Viktor Larsson , Marcel Geppert , Zuzana Kukelova , Marc Pollefeys , Torsten Sattler

This paper proposes SemCal: an automatic, targetless, extrinsic calibration algorithm for a LiDAR and camera system using semantic information. We leverage a neural information estimator to estimate the mutual information (MI) of semantic…

Computer Vision and Pattern Recognition · Computer Science 2021-09-22 Peng Jiang , Philip Osteen , Srikanth Saripalli

Localization has been a challenging task for autonomous navigation. A loop detection algorithm must overcome environmental changes for the place recognition and re-localization of robots. Therefore, deep learning has been extensively…

Robotics · Computer Science 2023-04-19 Alex Junho Lee , Seungwon Song , Hyungtae Lim , Woojoo Lee , Hyun Myung

Camera calibration is a process of paramount importance in computer vision applications that require accurate quantitative measurements. The popular method developed by Zhang relies on the use of a large number of images of a planar grid of…

Computer Vision and Pattern Recognition · Computer Science 2024-06-25 Katia Genovese

Depth perception is pivotal in many fields, such as robotics and autonomous driving, to name a few. Consequently, depth sensors such as LiDARs rapidly spread in many applications. The 3D point clouds generated by these sensors must often be…

Computer Vision and Pattern Recognition · Computer Science 2022-10-07 Andrea Conti , Matteo Poggi , Filippo Aleotti , Stefano Mattoccia

This study proposes an adaptive data-driven hyperparameter tuning framework for black-box 3D LiDAR odometry algorithms. The proposed framework comprises offline parameter-error function modeling and online adaptive parameter selection. In…

Robotics · Computer Science 2021-07-12 Kenji Koide , Masashi Yokozuka , Shuji Oishi , Atsuhiko Banno

The demand for multimodal sensing systems for robotics is growing due to the increase in robustness, reliability and accuracy offered by these systems. These systems also need to be spatially and temporally co-registered to be effective. In…

Robotics · Computer Science 2020-01-20 Chanoh Park , Peyman Moghadam , Soohwan Kim , Sridha Sridharan , Clinton Fookes

In the typical urban intersection scenario, both vehicles and infrastructures are equipped with visual and LiDAR sensors. By successfully integrating the data from vehicle-side and road monitoring devices, a more comprehensive and accurate…

Computer Vision and Pattern Recognition · Computer Science 2024-05-17 Xinyu Zhang , Yijin Xiong , Qianxin Qu , Renjie Wang , Xin Gao , Jing Liu , Shichun Guo , Jun Li

Reliable operation in inclement weather is essential to the deployment of safe autonomous vehicles (AVs). Robustness and reliability can be achieved by fusing data from the standard AV sensor suite (i.e., lidars, cameras) with weather…

Robotics · Computer Science 2021-11-18 Emmett Wise , Juraj Peršić , Christopher Grebe , Ivan Petrović , Jonathan Kelly

Correct radar data fusion depends on knowledge of the spatial transform between sensor pairs. Current methods for determining this transform operate by aligning identifiable features in different radar scans, or by relying on measurements…

Robotics · Computer Science 2023-08-30 Qilong Cheng , Emmett Wise , Jonathan Kelly

Achieving safe and reliable autonomous driving relies greatly on the ability to achieve an accurate and robust perception system; however, this cannot be fully realized without precisely calibrated sensors. Environmental and operational…

This paper presents an open source LiDAR-camera calibration toolbox that is general to LiDAR and camera projection models, requires only one pairing of LiDAR and camera data without a calibration target, and is fully automatic. For…

Robotics · Computer Science 2023-02-13 Kenji Koide , Shuji Oishi , Masashi Yokozuka , Atsuhiko Banno

Self-driving vehicles (SDVs) require accurate calibration of LiDARs and cameras to fuse sensor data accurately for autonomy. Traditional calibration methods typically leverage fiducials captured in a controlled and structured scene and…

Computer Vision and Pattern Recognition · Computer Science 2024-09-30 Ze Yang , George Chen , Haowei Zhang , Kevin Ta , Ioan Andrei Bârsan , Daniel Murphy , Sivabalan Manivasagam , Raquel Urtasun

Accurate LiDAR-camera calibration is fundamental to fusing multi-modal perception in autonomous driving and robotic systems. Traditional calibration methods require extensive data collection in controlled environments and cannot compensate…

Computer Vision and Pattern Recognition · Computer Science 2026-05-06 Weiduo Yuan , Jerry Li , Justin Yue , Divyank Shah , Konstantinos Karydis , Hang Qiu

In this paper, we propose a method of targetless and automatic Camera-LiDAR calibration. Our approach is an extension of hand-eye calibration framework to 2D-3D calibration. By using the sensor fusion odometry method, the scaled camera…

Computer Vision and Pattern Recognition · Computer Science 2018-04-17 Ryoichi Ishikawa , Takeshi Oishi , Katsushi Ikeuchi

The most prevalent routine for camera calibration is based on the detection of well-defined feature points on a purpose-made calibration artifact. These could be checkerboard saddle points, circles, rings or triangles, often printed on a…

Computer Vision and Pattern Recognition · Computer Science 2020-03-23 Morten Hannemose , Jakob Wilm , Jeppe Revall Frisvad

As neuromorphic technology is maturing, its application to robotics and autonomous vehicle systems has become an area of active research. In particular, event cameras have emerged as a compelling alternative to frame-based cameras in…

Computer Vision and Pattern Recognition · Computer Science 2023-02-22 Kevin Ta , David Bruggemann , Tim Brödermann , Christos Sakaridis , Luc Van Gool

LIDAR 3D object detection is one of the important tasks for autonomous vehicles. Ensuring that this task operates in real-time is crucial. Toward this, model quantization can be used to accelerate the runtime. However, directly applying…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Ninnart Fuengfusin , Keisuke Yoneda , Naoki Suganuma