Results 11 to 20 of about 1,585,607 (194)
Multiview Trajectory Mapping Using Homography with Lens Distortion Correction
EURASIP Journal on Image and Video Processing, 2008 We present a trajectory mapping algorithm for a distributed camera setting that is based on statistical homography estimation accounting for the distortion introduced by camera lenses.
Andrea Cavallaro, Gabin Kayumbi
doaj +3 more sources
IEEE Access, 2023 Vehicle speed estimation is one of the most critical issues in intelligent transportation system (ITS) research, while defining distance and identifying direction have become an inseparable part of vehicle speed estimation.
Ervin Yohannes +5 more
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LocalTrans: A Multiscale Local Transformer Network for Cross-Resolution Homography Estimation [PDF]
2021 IEEE/CVF International Conference on Computer Vision (ICCV), 2021 Cross-resolution image alignment is a key problem in multiscale gigapixel photography, which requires to estimate homography matrix using images with large resolution gap. Existing deep homography methods concatenate the input images or features, neglecting the explicit formulation of correspondences between them, which leads to degraded accuracy in ...
Ruizhi Shao +5 more
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Algorithms for trajectory integration in multiple views [PDF]
, 2009 PhDThis thesis addresses the problem of deriving a coherent and accurate localization of moving objects from partial visual information when data are generated by cameras placed in di erent view angles with respect to the scene.
Kayumbi-Kabeya, Gabin-Wilfried
core +4 more sources
Integrating Optical Feedback Alignment and Fluidic Control for Multiphase Flow-Assisted In Situ 3D Printing. [PDF]
J Sep SciABSTRACT Additive manufacturing is transforming how microfluidic devices are prototyped and fabricated. Among various 3D printing methods, stereolithography (SLA) has become a dominant technique for microfluidics due to its high resolution and design flexibility, with widespread use in lab‐on‐a‐chip applications.
Ramirez-Alvarado G +3 more
europepmc +2 more sources
Online Estimation of Ship Dimensions by Combining Images with AIS Reports
Journal of Marine Science and Engineering, 2023 Ship dimensions are an important component of static AIS information, and are a key factor in identifying the risks of ship collisions. We describe a method of extracting and correcting ship contour information using inland waterway surveillance video ...
Zishuo Huang +4 more
doaj +1 more source
Fast Aerial Image Geolocalization Using the Projective-Invariant Contour Feature
Remote Sensing, 2021 We address the problem of aerial image geolocalization over an area as large as a whole city through road network matching, which is modeled as a 2D point set registration problem under the 2D projective transformation and solved in a two-stage manner ...
Yongfei Li +4 more
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Three-Dimensional Reconstruction-Based Vibration Measurement of Bridge Model Using UAVs
Applied 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
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Multi‐scale homography estimation based on dual feature aggregation transformer
IET Image Processing, 2022 Abstract The accuracy of registration in image stitching task directly affects the performance of subsequent stages. Traditional registration methods rely heavily on the quality of the features when calculating the homography matrix, resulting in alignment failures in low‐texture or low‐overlap scenes due to extracting insufficient ...
Ying Li, Kehan Chen, Shilei Sun, Chu He
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Aggregation of Convolutional Neural Network Estimations of Homographies by Color Transformations of the Inputs [PDF]
IEEE Access, 2020 The standard approach to the estimation of homographies consists in the application of the RANSAC algorithm to a set of tentative matches. More recent strategies based on deep learning, namely convolutional architectures, have become available. In this work, a new algorithm for the estimation of homographies is developed.
Miguel A. Molina-Cabello +3 more
openaire +5 more sources