scholarly journals Reliability of a new method for lower-extremity measurements based on stereoradiographic three-dimensional reconstruction

2012 ◽  
Vol 98 (5) ◽  
pp. 506-513 ◽  
Author(s):  
B. Guenoun ◽  
F. Zadegan ◽  
F. Aim ◽  
D. Hannouche ◽  
R. Nizard
Keyword(s):  
Lower Extremity ◽  
Three Dimensional ◽  
New Method ◽  
Three Dimensional Reconstruction ◽  
Dimensional Reconstruction

scholarly journals A new method for efficient three-dimensional reconstruction of outdoor environments using mobile robots

2011 ◽  
Vol 28 (6) ◽  
pp. 832-853 ◽  
Author(s):  
Jaime A. Pulido Fentanes ◽  
Raul Feliz Alonso ◽  
Eduardo Zalama ◽  
Jaime Gómez García-Bermejo
Keyword(s):  
Mobile Robots ◽  
Three Dimensional ◽  
New Method ◽  
Three Dimensional Reconstruction ◽  
Outdoor Environments ◽  
Dimensional Reconstruction

New method of studying joint kinematics from three-dimensional reconstructions of MRI data

1996 ◽  
Vol 86 (1) ◽  
pp. 4-15 ◽  
Author(s):  
BE Hirsch ◽  
JK Udupa ◽  
S Samarasekera
Keyword(s):  
Magnetic Resonance ◽  
Range Of Motion ◽  
Three Dimensional ◽  
Magnetic Resonance Images ◽  
Joint Kinematics ◽  
New Method ◽  
Three Dimensional Reconstruction ◽  
Kinematic Parameters ◽  
Dimensional Reconstruction ◽  
Kinematic Information

A new method of measuring the kinematic parameters of joints has been developed. This article describes the procedure, using tarsal joints as examples. The method uses the technique of computerized three-dimensional reconstruction from magnetic resonance images, taken at regular intervals throughout a foot's range of motion. From these reconstructions, various kinematic information, such as orientation of instantaneous axes, amounts of rotation, amounts and direction of translation, and bony contact areas, is derived. The method is noninvasive and can be applied to individual subjects or patients.

Three-Dimensional Reconstruction: A New Method for the Evaluation of Apical Microleakage

2000 ◽  
Vol 26 (1) ◽  
pp. 36-38 ◽  
Author(s):  
K LYROUDIA ◽  
O PANTELIDOU ◽  
G MIKROGEORGIS ◽  
N NIKOPOULOS ◽  
I PITAS
Keyword(s):  
Three Dimensional ◽  
New Method ◽  
Three Dimensional Reconstruction ◽  
Dimensional Reconstruction

scholarly journals MULTI-BASELINE INSAR ELEVATION INVERSION METHOD BASED ON THREE-DIMENSIONAL RECONSTRUCTION MODEL

2017 ◽  
Vol XLII-2/W7 ◽  
pp. 743-746
Author(s):  
F. Hua ◽  
G. Peng ◽  
L. Lu ◽  
Z. Wang
Keyword(s):  
Geometric Model ◽  
Three Dimensional ◽  
New Method ◽  
Inversion Method ◽  
Three Dimensional Reconstruction ◽  
Interferometric Phase ◽  
Dimensional Reconstruction ◽  
System Errors ◽  
Reconstruction Model ◽  
Better Than

The existing multi-baseline methods have some problems of low accuracy and intensive calculation. In order to solve the problems, a new multi-baseline InSAR elevation inversion method based on a rigorous geometric model instead of a simplified model is proposed in the letter. This method introduces the three-dimensional reconstruction model based on rigorous geometric model and the unknown full cycles of interferometric phase as a parameter to iteratively solve the 3-D coordinates of the target. With adopting the 3-D coordinate information of targets to connect different interferometric data, the new method obviously weakens the effects of system errors on solving the integer cycle and is more reliable than conventional multi-baseline InSAR methods. The experimental results show that the speed and accuracy of the new method are better than the existing methods.

Methods for three-dimensional reconstruction of cellular components within a thick section

1986 ◽  
Vol 44 ◽  
pp. 18-21
Author(s):  
J. Frank ◽  
B. F. McEwen ◽  
M. Radermacher ◽  
C. L. Rieder
Keyword(s):  
Tilt Angle ◽  
Tomographic Reconstruction ◽  
3D Structure ◽  
Three Dimensional ◽  
Thick Section ◽  
Three Dimensional Reconstruction ◽  
Axis Ratio ◽  
Dimensional Reconstruction ◽  
Cellular Components

The tomographic reconstruction from multiple projections of cellular components, within a thick section, offers a way of visualizing and quantifying their three-dimensional (3D) structure. However, asymmetric objects require as many views from the widest tilt range as possible; otherwise the reconstruction may be uninterpretable. Even if not for geometric obstructions, the increasing pathway of electrons, as the tilt angle is increased, poses the ultimate upper limitation to the projection range. With the maximum tilt angle being fixed, the only way to improve the faithfulness of the reconstruction is by changing the mode of the tilting from single-axis to conical; a point within the object projected with a tilt angle of 60° and a full 360° azimuthal range is then reconstructed as a slightly elliptic (axis ratio 1.2 : 1) sphere.

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