Articles with "optical flow" as a keyword



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Fast left ventricle tracking using localized anatomical affine optical flow.

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Published in 2017 at "International journal for numerical methods in biomedical engineering"

DOI: 10.1002/cnm.2871

Abstract: In daily clinical cardiology practice, left ventricle (LV) global and regional function assessment is crucial for disease diagnosis, therapy selection, and patient follow-up. Currently, this is still a time-consuming task, spending valuable human resources. In… read more here.

Keywords: methodology; left ventricle; affine optical; optical flow ... See more keywords
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Characteristics of optical flow from aerial thermal imaging, “thermal flow”

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Published in 2022 at "Journal of Field Robotics"

DOI: 10.1002/rob.22065

Abstract: This study explores the utility of optical flow calculated from thermal imaging cameras, “thermal flow,” mounted on an aircraft for localization in day and night conditions. Our sensor implementation utilizes a long wave infrared (LWIR)… read more here.

Keywords: characteristics optical; flow; thermal imaging; thermal flow ... See more keywords
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Long future frame prediction using optical flow‐informed deep neural networks for enhancement of robotic teleoperation in high latency environments

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Published in 2022 at "Journal of Field Robotics"

DOI: 10.1002/rob.22135

Abstract: High latency in teleoperation has a significant negative impact on operator performance. While deep learning has revolutionized many domains recently, it has not previously been applied to teleoperation enhancement. We propose a novel approach to… read more here.

Keywords: neural networks; teleoperation; high latency; prediction ... See more keywords
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High-resolution velocimetry from tracer particle fields using a wavelet-based optical flow method

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Published in 2019 at "Experiments in Fluids"

DOI: 10.1007/s00348-019-2685-6

Abstract: A wavelet-based optical flow method for high-resolution velocimetry based on tracer particle images is presented. The current optical flow estimation method (WOF-X) is designed for improvements in processing experimental images by implementing wavelet transforms with… read more here.

Keywords: wavelet; velocity; optical flow; method ... See more keywords
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Improvements in the accuracy of wavelet-based optical flow velocimetry (wOFV) using an efficient and physically based implementation of velocity regularization

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Published in 2020 at "Experiments in Fluids"

DOI: 10.1007/s00348-019-2869-0

Abstract: Abstract This manuscript details recent improvements in a wavelet-based optical flow velocimetry (wOFV) method that represents a more physically sound implementation and results in increased accuracy of the velocity estimation. A novel regularization scheme is… read more here.

Keywords: implementation; velocity; regularization; wavelet ... See more keywords
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Human activity recognition via optical flow: decomposing activities into basic actions

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Published in 2018 at "Neural Computing and Applications"

DOI: 10.1007/s00521-018-3951-x

Abstract: AbstractRecognizing human activities using automated methods has emerged recently as a pivotal research theme for security-related applications. In this research paper, an optical flow descriptor is proposed for the recognition of human actions by considering… read more here.

Keywords: activity recognition; human activity; recognition via; flow ... See more keywords
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Optical flow and pattern noise-based copy–paste detection in digital videos

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Published in 2021 at "Multimedia Systems"

DOI: 10.1007/s00530-020-00749-3

Abstract: Digital videos are an incredibly important source of information, and as evidence, they are highly inculpatory. Digital videos are also inherently prone to conscious semantic manipulations, such as copy–paste forgeries, which involve insertion or removal… read more here.

Keywords: copy paste; pattern noise; paste; digital videos ... See more keywords
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Predictive Online Optimisation with Applications to Optical Flow

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Published in 2021 at "Journal of Mathematical Imaging and Vision"

DOI: 10.1007/s10851-020-01000-4

Abstract: Online optimisation revolves around new data being introduced into a problem while it is still being solved; think of deep learning as more training samples become available. We adapt the idea to dynamic inverse problems… read more here.

Keywords: optimisation applications; predictive online; optical flow; online optimisation ... See more keywords
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Context-adaptive matching for optical flow

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Published in 2017 at "Multimedia Tools and Applications"

DOI: 10.1007/s11042-017-5386-2

Abstract: Modern sparse-to-dense optical flow estimation algorithms usually achieve state-of-art performance. Those algorithms need two steps: matching and interpolation. Matching is often unreliable for very large displacement optical flow due to illumination changes, deformations and occlusion… read more here.

Keywords: adaptive matching; matching optical; edge; context adaptive ... See more keywords
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Fast registration of UAV aerial images based on improved optical-flow model combined with feature-point matching

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Published in 2018 at "Multimedia Tools and Applications"

DOI: 10.1007/s11042-018-6580-6

Abstract: With a large number of registration algorithms proposed, image registration techniques have achieved rapid development. However, there still exist many deficiencies in aerial images registration where high speed and accuracy are difficult to simultaneously achieve… read more here.

Keywords: feature; feature point; model; registration ... See more keywords
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2D-to-3D conversion using optical flow based depth generation and cross-scale hole filling algorithm

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Published in 2018 at "Multimedia Tools and Applications"

DOI: 10.1007/s11042-018-6583-3

Abstract: Abstract3D display has become the inevitable trend of display technology. Converting the traditional and classical 2D videos to 3D videos is an important and effective measure to solve the shortage of 3D contents. The major… read more here.

Keywords: using optical; conversion; conversion using; cross ... See more keywords