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In a multi-sensor fusion system composed of cameras and LiDAR, precise extrinsic calibration contributes to the system's long-term stability and accurate perception of the environment. However, methods based on extracting and registering…

机器人学 · 计算机科学 2024-07-29 Tianle Zeng , Dengke He , Feifan Yan , Meixi He

With the advent of autonomous vehicles, LiDAR and cameras have become an indispensable combination of sensors. They both provide rich and complementary data which can be used by various algorithms and machine learning to sense and make…

机器人学 · 计算机科学 2017-05-30 Ankit Dhall , Kunal Chelani , Vishnu Radhakrishnan , K. M. Krishna

Accurate sensor-to-vehicle calibration is essential for safe autonomous driving. Angular misalignments of LiDAR sensors can lead to safety-critical issues during autonomous operation. However, current methods primarily focus on correcting…

计算机视觉与模式识别 · 计算机科学 2026-02-02 Ilir Tahiraj , Peter Wittal , Markus Lienkamp

Accurate camera calibration is crucial for various computer vision applications. However, measuring calibration accuracy in the real world is challenging due to the lack of datasets with ground truth to evaluate them. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2024-08-20 Lala Shakti Swarup Ray , Bo Zhou , Lars Krupp , Sungho Suh , Paul Lukowicz

In this paper, we present a user-friendly LiDAR-camera calibration toolkit that is compatible with various LiDAR and camera sensors and requires only a single pair of laser points and a camera image in targetless environments. Our approach…

机器人学 · 计算机科学 2025-12-12 Haoxin Zhang , Shuaixin Li , Xiaozhou Zhu , Hongbo Chen , Wen Yao

In this paper, we unleash the potential of the powerful monodepth model in camera-LiDAR calibration and propose CLAIM, a novel method of aligning data from the camera and LiDAR. Given the initial guess and pairs of images and LiDAR point…

机器人学 · 计算机科学 2026-03-18 Zhuo Zhang , Yonghui Liu , Meijie Zhang , Feiyang Tan , Yikang Ding

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…

Accurate 3D scene reconstruction is essential for numerous medical tasks. Given the challenges in obtaining ground truth data, there has been an increasing focus on self-supervised learning (SSL) for endoscopic depth estimation as a basis…

计算机视觉与模式识别 · 计算机科学 2025-03-21 Beilei Cui , Long Bai , Mobarakol Islam , An Wang , Zhiqi Ma , Yiming Huang , Feng Li , Zhen Chen , Zhongliang Jiang , Nassir Navab , Hongliang Ren

Conventional optimization-based metering depends on strict adherence to precomputed schedules, which limits the flexibility required for the stochastic operations of Advanced Air Mobility (AAM). In contrast, multi-agent reinforcement…

机器人学 · 计算机科学 2026-01-09 Arsyi Aziz , Peng Wei

In this paper, we propose a novel online self-calibration approach for Light Detection and Ranging (LiDAR) and camera sensors. Compared to the previous CNN-based methods that concatenate the feature maps of the RGB image and decalibrated…

计算机视觉与模式识别 · 计算机科学 2021-04-27 Xudong Lv , Boya Wang , Dong Ye , Shuo Wang

Cameras and LiDAR are essential sensors for autonomous vehicles. Camera-LiDAR data fusion compensate for deficiencies of stand-alone sensors but relies on precise extrinsic calibration. Many learning-based calibration methods predict…

计算机视觉与模式识别 · 计算机科学 2025-07-08 Ni Ou , Zhuo Chen , Xinru Zhang , Junzheng Wang

Precision robotic manipulation tasks (insertion, screwing, precisely pick, precisely place) are required in many scenarios. Previous methods achieved good performance on such manipulation tasks. However, such methods typically require…

机器人学 · 计算机科学 2022-09-16 Yiwen Chen , Sheng Guo , Zedong Zhang , Lei Zhou , Xian Yao Ng , Marcelo H. Ang

LiDAR relocalization aims to estimate the global 6-DoF pose of a sensor in the environment. However, existing regression-based approaches are prone to dynamic or ambiguous scenarios, as they either solely rely on single-frame inference or…

计算机视觉与模式识别 · 计算机科学 2026-02-04 Minghang Zhu , Zhijing Wang , Yuxin Guo , Wen Li , Sheng Ao , Cheng Wang

Autonomous systems often employ multiple LiDARs to leverage the integrated advantages, enhancing perception and robustness. The most critical prerequisite under this setting is the estimating the extrinsic between each LiDAR, i.e.,…

机器人学 · 计算机科学 2024-05-12 Yifan Duan , Xinran Zhang , Guoliang You , Yilong Wu , Xingchen Li , Yao Li , Xiaomeng Chu , Jie Peng , Yu Zhang , Jianmin Ji , Yanyong Zhang

Accurate and reliable sensor calibration is critical for fusing LiDAR and inertial measurements in autonomous driving. This paper proposes a novel three-stage extrinsic calibration method between LiDAR and GNSS/INS for autonomous driving.…

机器人学 · 计算机科学 2023-03-01 Guohang Yan , Jiahao Pi , Chengjie Wang , Xinyu Cai , Yikang Li

For a number of tasks, such as 3D reconstruction, robotic interface, autonomous driving, etc., camera calibration is essential. In this study, we present a unique method for predicting intrinsic (principal point offset and focal length) and…

计算机视觉与模式识别 · 计算机科学 2022-12-26 Talha Hanif Butt , Murtaza Taj

Recently, LiDAR segmentation methods for autonomous vehicles, powered by deep neural networks, have experienced steep growth in performance on classic benchmarks, such as nuScenes and SemanticKITTI. However, there are still large gaps in…

计算机视觉与模式识别 · 计算机科学 2025-01-27 Marc Uecker , J. Marius Zöllner

We investigate a new paradigm that uses differentiable SLAM architectures in a self-supervised manner to train end-to-end deep learning models in various LiDAR based applications. To the best of our knowledge there does not exist any work…

Ultrafast ultrasound imaging insonifies a medium with one or a combination of a few plane waves at different beam-steered angles instead of many focused waves. It can achieve much higher frame rates, but often at the cost of reduced image…

图像与视频处理 · 电气工程与系统科学 2024-04-23 Ryan A. L. Schoop , Gijs Hendriks , Tristan van Leeuwen , Chris L. de Korte , Felix Lucka

Unmanned aerial vehicle (UAV) detection and aerial object recognition are critical for modern surveillance and security, prompting a need for robust systems that overcome limitations of single-modality approaches. This research addresses…

计算机视觉与模式识别 · 计算机科学 2025-11-20 Mauro Larrat , Claudomiro Sales