Constrained Kalman filter for uncooperative spacecraft estimation by stereovision
Sign Up to like & getrecommendations! Published in 2020 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2020.106133
Abstract: Abstract In this paper a novel approach based on constrained extended Kalman filter is proposed for estimating the relative state of the uncooperative spacecraft. The approach uses information from the stereovision-based navigation system to provide… read more here.
Keywords: system; stereovision; uncooperative spacecraft; spacecraft ... See more keywords
A deep-learning real-time visual SLAM system based on multi-task feature extraction network and self-supervised feature points
Sign Up to like & getrecommendations! Published in 2021 at "Measurement"
DOI: 10.1016/j.measurement.2020.108403
Abstract: Abstract Simultaneous Localization and Mapping (SLAM) is the basis for intelligent mobile robots to work in unknown environments. However, traditional feature extraction algorithms that traditional visual SLAM systems rely on have difficulty dealing with texture-less regions… read more here.
Keywords: visual slam; feature points; feature; slam system ... See more keywords
A dual-mode automatic switching feature points matching algorithm fusing IMU data
Sign Up to like & getrecommendations! Published in 2021 at "Measurement"
DOI: 10.1016/j.measurement.2021.110043
Abstract: Abstract Feature point extraction and matching work together and play a crucial role in many machine vision tasks, such as visual simultaneous localization and mapping (SLAM) which is the basis of robotics. However, feature matching… read more here.
Keywords: dual mode; feature; feature points; points matching ... See more keywords
Real-time seam tracking control system based on line laser visions
Sign Up to like & getrecommendations! Published in 2018 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2018.01.010
Abstract: Abstract A set of six-degree-of-freedom robotic welding automatic tracking platform was designed in this study to realize the real-time tracking of weld seams. Moreover, the feature point tracking method and the adaptive fuzzy control algorithm… read more here.
Keywords: time seam; laser; real time; control ... See more keywords
Autonomous vehicle self-localization in urban environments based on 3D curvature feature points – Monte Carlo localization
Sign Up to like & getrecommendations! Published in 2021 at "Robotica"
DOI: 10.1017/s0263574721000862
Abstract: Abstract This paper proposes a map-based localization system for autonomous vehicle self-localization in urban environments, which is composed of a pose graph mapping method and 3D curvature feature points – Monte Carlo Localization algorithm (3DCF-MCL).… read more here.
Keywords: vehicle self; feature points; self localization; autonomous vehicle ... See more keywords
Robust Hierarchical Adaptive Fuzzy Relative Motion Coordination for Feature Points of Two Rigid Bodies With Input and Output Constraints
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Fuzzy Systems"
DOI: 10.1109/tfuzz.2020.3041161
Abstract: In this article, a model-based six-degrees-of-freedom relative motion coordinated control approach is developed for the relative position tracking and attitude synchronization between feature points of two rigid bodies subject to control input constraints, output constraints,… read more here.
Keywords: relative motion; feature; fuzzy; output constraints ... See more keywords
Joint detection and matching of feature points in multimodal images.
Sign Up to like & getrecommendations! Published in 2021 at "IEEE transactions on pattern analysis and machine intelligence"
DOI: 10.1109/tpami.2021.3092289
Abstract: In this work, we propose a novel Convolutional Neural Network (CNN) architecture for the joint detection and matching of feature points in images acquired by different sensors using a single forward pass. The resulting feature… read more here.
Keywords: matching feature; feature; detection matching; feature points ... See more keywords
SGLBP: Subgraph‐based Local Binary Patterns for Feature Extraction on Point Clouds
Sign Up to like & getrecommendations! Published in 2022 at "Computer Graphics Forum"
DOI: 10.1111/cgf.14500
Abstract: Extraction for points that can outline the shape of a point cloud is an important task for point cloud processing in various applications. The topology information of the neighbourhood of a point usually contains sufficient… read more here.
Keywords: topology; local binary; subgraph based; based local ... See more keywords
An improved watermarking algorithm using variable block image features
Sign Up to like & getrecommendations! Published in 2017 at "Pattern Recognition and Image Analysis"
DOI: 10.1134/s105466181702002x
Abstract: The ease in digital imaging has led to a decrease in image fidelity where illegal reproduction of multimedia information has become difficult to detect. The most challenging problem is to protect image copyright against illegal… read more here.
Keywords: image; algorithm; feature points; image features ... See more keywords
Reconstruction of Velocity Distribution in Partially-Filled Pipe Based on Non-Uniform Under-Sampling
Sign Up to like & getrecommendations! Published in 2020 at "Advances in Mathematical Physics"
DOI: 10.1155/2020/6961286
Abstract: In the process of research on the flow velocity distribution in a partially filled pipe, the under-sampling of measurement data often occurs. For the first time, this problem is solved by the improved non-uniform B-spline… read more here.
Keywords: velocity; feature points; velocity distribution; curve ... See more keywords
Modeling and Prediction Method for CNC Machine Tools’ Errors Based on Spatial Feature Points
Sign Up to like & getrecommendations! Published in 2020 at "Advances in Materials Science and Engineering"
DOI: 10.1155/2020/7254596
Abstract: In order to improve the precision of CNC machine tools effectively, a method for modeling and predicting their spatial errors based on spatial feature points was proposed. Taking three-axis vertical CNC machine tools as the… read more here.
Keywords: errors based; machine tools; feature points; cnc machine ... See more keywords