Paper Info
Title
Planar Deformable Motion Estimation Incorporating Mass Conservation And Image Gradient Constancy
Abstract
The accuracy of optical flow estimation algorithms has been improving steadily by refining the objective function which should be optimized. A novel energy function for computing 2-D optical flow from X-ray CT images is presented. One advantage of the optical flow framework is the possibility to enforce physical constraints on the numerical solutions. The physical constraints which have been included here are: brightness constancy, gradient constancy, continuity equation based on mass conservation, and discontinuity-preserving spatio-temporal smoothness. Both qualitative and quantitative evaluation of the proposed method demonstrates that the method results in significantly better angular errors than previous optical flow techniques for estimation of deformable lung motion. Future research will include extension of the proposed techniques to 3-D.
Year
DOI
Venue
2011
10.1109/ISBI.2011.5872463
2011 8TH IEEE INTERNATIONAL SYMPOSIUM ON BIOMEDICAL IMAGING: FROM NANO TO MACRO
Keywords
Field
DocType
Medical Image Registration, X-ray Computed Tomography, Deformable Motion, Optical Flow, Lung Motion
Computer vision,Continuity equation,Image gradient,Computer science,Motion compensation,Artificial intelligence,Motion estimation,Optical flow,Conservation of mass,Image registration,Adaptive optics
Conference
ISSN
Citations 
PageRank 
1945-7928
2
0.43
References 
Authors
5
2
Name
Order
Citations
PageRank
Mohammadreza Negahdar1144.55
Amir A. Amini244363.30