Results 21 to 30 of about 1,576,564 (201)

Homography augmented particle filter SLAM [PDF]

open access: yes, 2023
The article presents a comprehensive study of a visual-inertial simultaneous localization and mapping (SLAM) algorithm designed for aerial vehicles. The goal of the research is to propose an improvement to the particle filter SLAM system that allows for ...
Słowak, Paweł Leszek, Kaniewski, Piotr
core   +1 more source

A New Algorithm for the Establishing Data Association Between a Camera and a 2-D LIDAR

open access: yesTsinghua Science and Technology, 2014
In this paper, we propose a new algorithm to establish the data association between a camera and a 2-D LIght Detection And Ranging sensor (LIDAR). In contrast to the previous works, where data association is established by calibrating the intrinsic ...
Lipu Zhou, Zhidong Deng
doaj   +1 more source

FEATURE MATCHING ENHANCEMENT OF UAV IMAGES USING GEOMETRIC CONSTRAINTS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Preliminary matching of image features is based on the distance between their descriptors. Matches are further filtered using RANSAC, or a similar method that fits the matches to a model; usually the fundamental matrix and rejects matches not belonging ...
H. M. Mohammed, N. El-Sheimy
doaj   +1 more source

Multi-View Optical Image Fusion and Reconstruction for Defogging without a Prior In-Plane

open access: yesPhotonics, 2021
Image fusion and reconstruction from muldti-images taken by distributed or mobile cameras need accurate calibration to avoid image mismatching. This calibration process becomes difficult in fog when no clear nearby reference is available.
Yuru Huang   +9 more
doaj   +1 more source

Image Registration Algorithm Based on Convolutional Neural Network and Local Homography Transformation

open access: yesApplied Sciences, 2020
In order to overcome the poor robustness of traditional image registration algorithms in illuminating and solving the problem of low accuracy of a learning-based image homography matrix estimation algorithm, an image registration algorithm based on ...
Yuanwei Wang   +4 more
doaj   +1 more source

Fast Matching Method of UAV Aerial Photography Enhanced Low Illumination Image

open access: yesInternational Journal of Aerospace Engineering, 2022
Aiming at the problems of insufficient image contrast in three-dimensional reconstruction of UAV in low illumination environment and the unstable iteration times of the RANSAC algorithm in the feature matching process, real-time matching method of UAV ...
Wenyao Li   +6 more
doaj   +1 more source

Three-Dimensional Reconstruction-Based Vibration Measurement of Bridge Model Using UAVs

open access: yesApplied Sciences, 2021
This paper presents a measurement method of bridge vibration based on three-dimensional (3D) reconstruction. A video of bridge model vibration is recorded by an unmanned aerial vehicle (UAV), and the displacement of target points on the bridge model is ...
Zhihua Wu   +4 more
doaj   +1 more source

Underground image matching algorithm combining homomorphic filtering and histogram equalization

open access: yesGong-kuang zidonghua, 2021
In order to solve the problem of inaccurate feature point extraction and poor matching effect of existing underground image matching algorithms, an underground image matching algorithm combining homomorphic filtering and histogram equalization is ...
GONG Yun, YANG Pangbin, JIE Xinyu
doaj   +1 more source

Adaptive Hybrid Visual Servo Regulation of Mobile Robots Based on Fast Homography Decomposition

open access: yesJournal of Control Science and Engineering, 2015
For the monocular camera-based mobile robot system, an adaptive hybrid visual servo regulation algorithm which is based on a fast homography decomposition method is proposed to drive the mobile robot to its desired position and orientation, even when ...
Chunfu Wu   +3 more
doaj   +1 more source

Displacement Measurement Based on UAV Images Using SURF-Enhanced Camera Calibration Algorithm

open access: yesRemote Sensing, 2022
Displacement is an important parameter in the assessment of the integrity of infrastructure; thus, its measurement is required in a multitude of guidelines or codes for structural health monitoring in most countries.
Gang Liu   +3 more
doaj   +1 more source

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