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3D Orientation Field Transform
[article]
2020
arXiv
pre-print
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In principle, the proposed 3D orientation field transform can naturally tackle any dimensions. ...
As a special case, it is also ideal for 2D images, owning simpler methodology compared to the previous 2D orientation field transform. ...
We proposed the 3D orientation field transform below. ...
arXiv:2010.01453v1
fatcat:nl3yjhllmvaypohmlllr2qprji
A tool for intraoperative visualization of registration results
2014
Medical Imaging 2014: Image-Guided Procedures, Robotic Interventions, and Modeling
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Glyph visualization mode uses oriented and scaled glyphs, such as arrows, to represent the deformation field in 3D whereas glyph slice visualization mode creates arrows that can be seen as a 2D vector ...
field. ...
A typical method of visualizing both 2D and 3D vector fields is the usage of oriented and scaled glyphs such as arrows [1] . ...
doi:10.1117/12.2043496
dblp:conf/miigp/KingLPF14
fatcat:q67ozeel6bcilb6sde4d5ojce4
Creation of Three-dimensional Crop Maps based on Aerial Stereoimages
2005
Biosystems Engineering
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In this 3D crop map generation method, individual images were fused in a global map by transforming image space coordinates into global East-North coordinates. ...
This research investigated the use of a compact stereocamera mounted on a remotecontrolled helicopter to acquire stereoimages of a maize field and represent the crop information in a 3D crop map. ...
Appreciation is especially extended to Professor Noboru Noguchi for his support in performing field tests at Hokkaido University. ...
doi:10.1016/j.biosystemseng.2004.11.013
fatcat:smsfidphrrccfoo6obctbghoe4
2.5D controlled-source EM modeling with general 3D source geometries
2011
Geophysics
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Accordingly, only positive wavenumbers need to be considered, and inverse transform of each field component to the space domain is accomplished by applying either a fast cosine or sine transform filter ...
We present a novel 2.5D CSEM modeling scheme that overcomes this limitation and permits efficient simulations of sources with general shape and orientation by evaluating fields for the entire source at ...
Figure 2a), (b) the k x transformẼ P x of the field shown in (a), (c) the k x -domain secondary fieldẼ S x at the same y location, but at the surface, and (d) the x-domain transform E S x of the field ...
doi:10.1190/geo2011-0111.1
fatcat:xbys6rf75fcrpen5znbdn2euxm
Register cardiac fiber orientations from 3D DTI volume to 2D ultrasound image of rat hearts
2015
Medical Imaging 2015: Image-Guided Procedures, Robotic Interventions, and Modeling
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It utilizes a 2D/3D intensity based registration procedure including rigid, log-demons, and affine transformations to search the best similar slice from the template volume. ...
In order to supply more detailed microstructure information of the myocardium, this paper proposes a registration method to map cardiac fiber orientations from three-dimensional (3D) magnetic resonance ...
The corresponding transformation fields are set as: T 1 for rigid registration and T 2 for log-demons registration. ...
doi:10.1117/12.2082317
pmid:26855466
pmcid:PMC4737950
dblp:conf/miigp/QinWSZLWF15
fatcat:arte2jsfxjehdeoj6ortmcmwg4
3Din vivoimaging of rat hearts by high frequency ultrasound and its application in myofiber orientation wrapping
2015
Medical Imaging 2015: Ultrasonic Imaging and Tomography
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This 3D ultrasound imaging and fiber orientation estimation technique have potential applications in cardiac imaging. ...
Especially, the wrapping of cardiac fiber orientations to the ultrasound volume could supply useful information on the stress distributions and electric action spreading. ...
Thus, Vercauteren et al. adapted the Demons as an optimization procedure on the entire space of displacement fields to a space of diffeomorphic transformations through the exponential. ...
doi:10.1117/12.2082326
pmid:26412926
pmcid:PMC4581442
fatcat:mzgdjbjd6rb4fd74kfbekz3fae
Segmentation of thin structures in electron micrographs using orientation fields
2007
Journal of Structural Biology
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We introduce two new transforms, the Line Filter Transform (LFT) and the Orientation Filter Transform (OFT). ...
The OFT utilizes geometrical information about the structure by measuring correlations of local orientations in the image. ...
orientation field before applying the Orientation Field Transform. ...
doi:10.1016/j.jsb.2006.09.007
pmid:17116405
fatcat:ntrx4d7gwjc6blzg45sdrcl4fa
Computations underlying the visuomotor transformation for smooth pursuit eye movements
2015
Journal of Neurophysiology
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signals with three-dimensional (3D) eye and head orientation and velocity signals to generate a spatially correct 3D pursuit command. ...
Our model is the first to describe the general 3D transformation for smooth pursuit mediated by eye-and head-dependent gain modulation. ...
These models could not perform the general, 3D transformation that our model performs here, which accounts for 2D retinal signals, 3D eye orientation and velocity, and 3D head orientation and velocity, ...
doi:10.1152/jn.00273.2014
pmid:25475344
pmcid:PMC4346721
fatcat:sno53diwlva43baf7vvj4rmxdy
Linear object classes and image synthesis from a single example image
1997
IEEE Transactions on Pattern Analysis and Machine Intelligence
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The need to generate new views of a 3D object from a single real image arises in several fields, including graphics and object recognition. ...
For linear object classes, it is shown that linear transformations can be learned exactly from a basis set of 2D prototypical views. ...
Linear object classes have the properties that new orthographic views of any object of the class under uniform affine 3D transformations, and, in particular, rigid transformations in 3D, can be generated ...
doi:10.1109/34.598230
fatcat:njkobc434fferoarplubnzxv5m
Automated 3D registration of magnetic resonance angiography, 3D power doppler, and 3D B-mode ultrasound images of carotid bifurcation
2000
Medical Imaging 2000: Image Processing
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The Bmode images, acquired simultaneously in the same orientation as PD, are registered to the MRA using the transformation obtained from the MRA-PD registration. ...
To allow a more objective interpretation of 3D carotid bifurcation images, we have implemented and evaluated on patient data, automated volume registration of 3D magnetic resonance angiography (MRA), 3D ...
The 3D B-mode ultrasound images, acquired simultaneously and in the same orientation as PD images, were then transformed and superimposed on the MRA images using the transformation parameters obtained ...
doi:10.1117/12.387695
dblp:conf/miip/SlomkaMFD00
fatcat:foeywyrgwvclfeo26lpi45hkea
Additive Manufacturing and Performance of E-Type Transformer Core
2021
Energies
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transformer are identified at operating temperature. ...
Further optimization of both the 3D printed material and core design are proposed for obtaining higher electrical performance for AC applications. ...
Acknowledgments: The authors would like to thank Balti Transformers Ltd. for cooperation.
Conflicts of Interest: The authors declare no conflict of interests. ...
doi:10.3390/en14113278
fatcat:wekh26nyhrfozoulweenwwtdum
Simulating the Cortical 3D Visuomotor Transformation of Reach Depth
2012
PLoS ONE
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To bridge the gap between behavior and neurophysiology, we trained a feed-forward artificial neural network to uncover potential mechanisms that might underlie the 3D transformation of reach depth. ...
Our physiologically-inspired 4-layer network receives distributed 3D visual inputs (1 st layer) along with eye, head and vergence signals. ...
The 3D angular vectors for eye and head orientation were then transformed into two 6D arrays of inputs (one for eye and one for head orientation) as follows [13, 76, 85] : a +,i~0 :5+ r i 2 : r 0 ð5Þ ...
doi:10.1371/journal.pone.0041241
pmid:22815979
pmcid:PMC3397995
fatcat:taub6mznpndzrphjhgeiwecymq
Fast 3D target-oriented reverse-time datuming
2009
Geophysics
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Target-oriented RTD is tested on 2D and 3D SEG/EAGE synthetic data sets and a 3D field data set from the Gulf of Mexico. ...
To overcome this problem, a 3D target-oriented reverse-time datuming ͑RTD͒ method is presented, which can generate redatumed data economically in target areas beneath complex structures such as salt domes ...
transforms.
3D target-oriented RTD WCA149 tum line. ...
doi:10.1190/1.3261746
fatcat:4jqcch3zfbb6lmjyqkkni7sxni
DTI template-based estimation of cardiac fiber orientations from 3D ultrasound
2015
Medical Physics (Lancaster)
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It estimated the cardiac fiber orientations of the target heart by deforming the fiber orientations of the template heart, based on the deformation field of the registration between the ultrasound geometry ...
Methods: A DTI template based framework was developed to estimate cardiac fiber orientations from 3D ultrasound images using an animal model. ...
Thus, Vercauteren et al. adapted the Demons as an optimization procedure on the entire space of displacement fields to a space of diffeomorphic transformations through the exponential. ...
doi:10.1118/1.4921121
pmid:26127045
pmcid:PMC4441706
fatcat:73xleuuv4vhxtim2beqxwuz6ky
Parametric Curves
[chapter]
2005
Geometric Programming for Computer-Aided Design
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335
9.1.3 Window-viewport mapping
336
9.2 3D pipeline
339
9.2.1 View model
340
9.2.2 Coordinate systems
341
9.2.3 Transformations of coordinates
342
9.2.4 View orientation
344
9.2.5 View ...
233
6.2.7 Tensor properties
234
6.2.8 Fixed point transformations
236
6.3 3D Transformations
237
6.3.1 Elementary transformations
237
6.3.2 Rotations
240
6.3.3 Rotations about affine axes ...
doi:10.1002/0470013885.ch11
fatcat:vp5ndtn5offmvl6nnsf2hfk644
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