28 citations · 88 across the 44 of their papers we have counts for
22 papers · 2 filters
A Minimal Solver for Relative Pose Estimation with Unknown Focal Length from Two Affine Correspondences
Zhenbao Yu, Shirong Ye, Ronghe Jin +4
In this paper, we aim to estimate the relative pose and focal length between two views with known intrinsic parameters except for an unknown focal length from two affine correspond…
Event-based high temporal resolution measurement of shock wave motion field
Taihang Lei, Banglei Guan, Minzu Liang +4
Accurate measurement of shock wave motion parameters with high spatiotemporal resolution is essential for applications such as power field testing and damage assessment. However, s…
LECalib: Line-Based Event Camera Calibration
Zibin Liu, Banglei Guan, Yang Shang +3
Camera calibration is an essential prerequisite for event-based vision applications. Current event camera calibration methods typically involve using flashing patterns, reconstruct…
Optical Flow-Guided 6DoF Object Pose Tracking with an Event Camera
Zibin Liu, Banglei Guan, Yang Shang +3
Object pose tracking is one of the pivotal technologies in multimedia, attracting ever-growing attention in recent years. Existing methods employing traditional cameras encounter n…
Trifocal Tensor and Relative Pose Estimation with Known Vertical Direction
Tao Li, Zhenbao Yu, Banglei Guan +3
This work presents two novel solvers for estimating the relative poses among views with known vertical directions. The vertical directions of camera views can be easily obtained us…
Globally Optimal Solution to the Generalized Relative Pose Estimation Problem using Affine Correspondences
Zhenbao Yu, Banglei Guan, Shunkun Liang +3
Mobile devices equipped with a multi-camera system and an inertial measurement unit (IMU) are widely used nowadays, such as self-driving cars. The task of relative pose estimation…
Ridge Estimation-Based Vision and Laser Ranging Fusion Localization Method for UAVs
Huayu Huang, Chen Chen, Banglei Guan +4
Tracking and measuring targets using a variety of sensors mounted on UAVs is an effective means to quickly and accurately locate the target. This paper proposes a fusion localizati…
Flexible Camera Calibration using a Collimator System
Shunkun Liang, Banglei Guan, Zhenbao Yu +5
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 c…
Collimator-assisted high-precision calibration method for event cameras
Zibin Liu, Shunkun Liang, Banglei Guan +3
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, wh…
Asynchronous Event Stream Noise Filtering for High-frequency Structure Deformation Measurement
Yifei Bian, Banglei Guan, Zibin Liu +4
Large-scale structures suffer high-frequency deformations due to complex loads. However, harsh lighting conditions and high equipment costs limit measurement methods based on tradi…
Simultaneous Enhancement and Noise Suppression under Complex Illumination Conditions
Jing Tao, You Li, Banglei Guan +2
Under challenging light conditions, captured images often suffer from various degradations, leading to a decline in the performance of vision-based applications. Although numerous…
Optimal Pose Guidance for Stereo Calibration in 3D Deformation Measurement
Dongcai Tan, Shunkun Liang, Bin Li +11
Stereo optical measurement techniques, such as digital image correlation (DIC), are widely used in 3D deformation measurement as non-contact, full-field measurement methods, in whi…
DKPMV: Dense Keypoints Fusion from Multi-View RGB Frames for 6D Pose Estimation of Textureless Objects
Jiahong Chen, Jinghao Wang, Zi Wang +3
6D pose estimation of textureless objects is valuable for industrial robotic applications, yet remains challenging due to the frequent loss of depth information. Current multi-view…
Deterministic Object Pose Confidence Region Estimation
Jinghao Wang, Zhang Li, Zi Wang +3
6D pose confidence region estimation has emerged as a critical direction, aiming to perform uncertainty quantification for assessing the reliability of estimated poses. However, cu…
3D Trajectory Reconstruction of Moving Points Based on Asynchronous Cameras
Huayu Huang, Banglei Guan, Yang Shang +1
Photomechanics is a crucial branch of solid mechanics. The localization of point targets constitutes a fundamental problem in optical experimental mechanics, with extensive applica…
Event-based multi-view photogrammetry for high-dynamic, high-velocity target measurement
Taihang Lei, Banglei Guan, Minzu Liang +5
The characterization of mechanical properties for high-dynamic, high-velocity target motion is essential in industries. It provides crucial data for validating weapon systems and p…
Learning Affine Correspondences by Integrating Geometric Constraints
Pengju Sun, Banglei Guan, Zhenbao Yu +3
Affine correspondences have received significant attention due to their benefits in tasks like image matching and pose estimation. Existing methods for extracting affine correspond…
Stereo Event-based, 6-DOF Pose Tracking for Uncooperative Spacecraft
Zibin Liu, Banglei Guan, Yang Shang +3
Pose tracking of uncooperative spacecraft is an essential technology for space exploration and on-orbit servicing, which remains an open problem. Event cameras possess numerous adv…
Full-DoF Egomotion Estimation for Event Cameras Using Geometric Solvers
Ji Zhao, Banglei Guan, Zibin Liu +1
For event cameras, current sparse geometric solvers for egomotion estimation assume that the rotational displacements are known, such as those provided by an IMU. Thus, they can on…
Accurate Pose Estimation for Flight Platforms based on Divergent Multi-Aperture Imaging System
Shunkun Liang, Bin Li, Banglei Guan +3
Vision-based pose estimation plays a crucial role in the autonomous navigation of flight platforms. However, the field of view and spatial resolution of the camera limit pose estim…
3D Trajectory Reconstruction of Moving Points Based on a Monocular Camera
Huayu Huang, Banglei Guan, Yang Shang +1
The motion measurement of point targets constitutes a fundamental problem in photogrammetry, with extensive applications across various engineering domains. Reconstructing a point'…
High-precision visual navigation device calibration method based on collimator
Shunkun Liang, Dongcai Tan, Banglei Guan +6
Visual navigation devices require precise calibration to achieve high-precision localization and navigation, which includes camera and attitude calibration. To address the limitati…