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Chemical multisensor devices need calibration algorithms to estimate gas concentrations. Their possible adoption as indicative air quality measurements devices poses new challenges due to the need to operate in continuous monitoring modes…

Artificial Intelligence · Computer Science 2020-02-14 S. De Vito , E. Esposito , M. Salvato , O. Popoola , F. Formisano , R. Jones , G. Di Francia

Lidars and cameras play essential roles in autonomous driving, offering complementary information for 3D detection. The state-of-the-art fusion methods integrate them at the feature level, but they mostly rely on the learned soft…

Computer Vision and Pattern Recognition · Computer Science 2025-01-03 Zixuan Yin , Han Sun , Ningzhong Liu , Huiyu Zhou , Jiaquan Shen

Camera calibration is an essential prerequisite for event-based vision applications. Current event camera calibration methods typically involve using flashing patterns, reconstructing intensity images, and utilizing the features extracted…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Zibin Liu , Banglei Guan , Yang Shang , Zhenbao Yu , Yifei Bian , Qifeng Yu

In the field of SLAM (Simultaneous Localization And Mapping) for robot navigation, mapping the environment is an important task. In this regard the Lidar sensor can produce near accurate 3D map of the environment in the format of point…

Computer Vision and Pattern Recognition · Computer Science 2020-09-15 Aritra Mukherjee , Sourya Dipta Das , Jasorsi Ghosh , Ananda S. Chowdhury , Sanjoy Kumar Saha

In this work, we propose a new approach that combines data from multiple sensors for reliable obstacle avoidance. The sensors include two depth cameras and a LiDAR arranged so that they can capture the whole 3D area in front of the robot…

Robotics · Computer Science 2022-12-27 Thanh Nguyen Canh , Truong Son Nguyen , Cong Hoang Quach , Xiem HoangVan , Manh Duong Phung

Camera calibration is a crucial step in photogrammetry and 3D vision applications. This paper introduces a novel camera calibration method using a designed collimator system. Our collimator system provides a reliable and controllable…

Computer Vision and Pattern Recognition · Computer Science 2025-12-19 Shunkun Liang , Banglei Guan , Zhenbao Yu , Dongcai Tan , Pengju Sun , Zibin Liu , Qifeng Yu , Yang Shang

This paper proposes FAST-Calib, a fast and user-friendly LiDAR-camera extrinsic calibration tool based on a custom-made 3D target. FAST-Calib supports both mechanical and solid-state LiDARs by leveraging an efficient and reliable edge…

Robotics · Computer Science 2025-07-24 Chunran Zheng , Fu Zhang

In this paper, we present TEScalib, a novel extrinsic self-calibration approach of LiDAR and stereo camera using the geometric and photometric information of surrounding environments without any calibration targets for automated driving…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Haohao Hu , Fengze Han , Frank Bieder , Jan-Hendrik Pauls , Christoph Stiller

Driven by deep learning techniques, perception technology in autonomous driving has developed rapidly in recent years, enabling vehicles to accurately detect and interpret surrounding environment for safe and efficient navigation. To…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Shanliang Yao , Runwei Guan , Xiaoyu Huang , Zhuoxiao Li , Xiangyu Sha , Yong Yue , Eng Gee Lim , Hyungjoon Seo , Ka Lok Man , Xiaohui Zhu , Yutao Yue

Robust road segmentation in all road conditions is required for safe autonomous driving and advanced driver assistance systems. Supervised deep learning methods provide accurate road segmentation in the domain of their training data but…

Computer Vision and Pattern Recognition · Computer Science 2025-03-03 Eerik Alamikkotervo , Henrik Toikka , Kari Tammi , Risto Ojala

In recent studies, numerous previous works emphasize the importance of semantic segmentation of LiDAR data as a critical component to the development of driver-assistance systems and autonomous vehicles. However, many state-of-the-art…

Accurate and robust LiDAR 3D object detection is essential for comprehensive scene understanding in autonomous driving. Despite its importance, LiDAR detection performance is limited by inherent constraints of point cloud data, particularly…

Computer Vision and Pattern Recognition · Computer Science 2024-09-09 Rui Yu , Runkai Zhao , Cong Nie , Heng Wang , HuaiCheng Yan , Meng Wang

Event cameras are a new type of brain-inspired visual sensor with advantages such as high dynamic range and high temporal resolution. The geometric calibration of event cameras, which involves determining their intrinsic and extrinsic…

Computer Vision and Pattern Recognition · Computer Science 2025-12-19 Zibin Liu , Shunkun Liang , Banglei Guan , Dongcai Tan , Yang Shang , Qifeng Yu

Although significant progress has been made, achieving place recognition in environments with perspective changes, seasonal variations, and scene transformations remains challenging. Relying solely on perception information from a single…

Computer Vision and Pattern Recognition · Computer Science 2023-10-17 Yan Pan , Jiapeng Xie , Jiajie Wu , Bo Zhou

This paper presents a novel multi-modal Multi-Object Tracking (MOT) algorithm for self-driving cars that combines camera and LiDAR data. Camera frames are processed with a state-of-the-art 3D object detector, whereas classical clustering…

Robotics · Computer Science 2024-05-14 Riccardo Pieroni , Simone Specchia , Matteo Corno , Sergio Matteo Savaresi

In many fields of robotics, knowing the relative position and orientation between two sensors is a mandatory precondition to operate with multiple sensing modalities. In this context, the pair LiDAR-RGB cameras offer complementary features:…

In this paper, we study the problem of jointly estimating the optical flow and scene flow from synchronized 2D and 3D data. Previous methods either employ a complex pipeline that splits the joint task into independent stages, or fuse 2D and…

Computer Vision and Pattern Recognition · Computer Science 2022-04-13 Haisong Liu , Tao Lu , Yihui Xu , Jia Liu , Wenjie Li , Lijun Chen

The bioinspired event camera, distinguished by its exceptional temporal resolution, high dynamic range, and low power consumption, has been extensively studied in recent years for motion estimation, robotic perception, and object detection.…

Robotics · Computer Science 2025-09-09 Shuolong Chen , Xingxing Li , Liu Yuan

The SLAM system based on static scene assumption will introduce huge estimation errors when moving objects appear in the field of view. This paper proposes a novel multi-object dynamic lidar odometry (MLO) based on semantic object detection…

Robotics · Computer Science 2023-03-03 Tingchen Ma , Yongsheng Ou

Diffuse direct time-of-flight LiDARs report per-pixel depth histograms formed by aggregating photon returns over a wide instantaneous field of view, violating the single-ray assumption behind standard LiDAR-RGB calibration. We present a…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Nikhil Behari , Ramesh Raskar