U‐net‐based deformation vector field estimation for motion‐compensated 4D‐CBCT reconstruction

2020 ◽  
Vol 47 (7) ◽  
pp. 3000-3012 ◽  
Author(s):  
Xiaokun Huang ◽  
You Zhang ◽  
Liyuan Chen ◽  
Jing Wang
Keyword(s):  
Vector Field ◽  
Field Estimation ◽  
Deformation Vector Field

scholarly journals A pseudoinverse deformation vector field generator and its applications

2010 ◽  
Vol 37 (3) ◽  
pp. 1117-1128 ◽  
Author(s):  
C. Yan ◽  
H. Zhong ◽  
M. Murphy ◽  
E. Weiss ◽  
J. V. Siebers
Keyword(s):  
Vector Field ◽  
Deformation Vector Field

scholarly journals Motion Vector Field Estimation Using Brightness Constancy Assumption and Epipolar Geometry Constraint

2014 ◽  
Vol II-1 ◽  
pp. 9-16 ◽  
Author(s):  
S. Hosseinyalamdary ◽  
A. Yilmaz
Keyword(s):  
Vector Field ◽  
Optical Flow ◽  
Motion Vector ◽  
Epipolar Geometry ◽  
Estimation Methods ◽  
Brightness Constancy ◽  
Flow Estimation ◽  
Optical Flow Estimation ◽  
Motion Vector Field ◽  
Field Estimation

In most Photogrammetry and computer vision tasks, finding the corresponding points among images is required. Among many, the Lucas-Kanade optical flow estimation has been employed for tracking interest points as well as motion vector field estimation. This paper uses the IMU measurements to reconstruct the epipolar geometry and it integrates the epipolar geometry constraint with the brightness constancy assumption in the Lucas-Kanade method. The proposed method has been tested using the KITTI dataset. The results show the improvement in motion vector field estimation in comparison to the Lucas-Kanade optical flow estimation. The same approach has been used in the KLT tracker and it has been shown that using epipolar geometry constraint can improve the KLT tracker. It is recommended that the epipolar geometry constraint is used in advanced variational optical flow estimation methods.

Improved 2D vector field estimation using probabilistic weights

2011 ◽  
Vol 28 (8) ◽  
pp. 1620 ◽  
Author(s):  
Archontis Giannakidis ◽  
Maria Petrou
Keyword(s):  
Vector Field ◽  
Field Estimation

scholarly journals idvf: Iterative Inversion of Deformation Vector Field with Adaptive Bi-residual Feedback Control

2019 ◽  
Vol 4 (35) ◽  
pp. 1076
Author(s):  
Alexandros-Stavros Iliopoulos ◽  
Abhishek Dubey ◽  
Xiaobai Sun
Keyword(s):  
Vector Field ◽  
Feedback Control ◽  
Iterative Inversion ◽  
Deformation Vector Field
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