Results 251 to 260 of about 682,217 (290)

DEFORMABLE REGISTRATION OF DTI AND SPGR IMAGES

2007 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2007
Registration of DTI data with structure data, such as SPGR data, has import application in quantitative analysis of brain microstructures such as tissue diffusivity. However, due to potential problems such as EPI geometric distortion, partial volume effect and image reslicing errors, accurate registration of these two types of MRI images is challenging.
Hai Li 0006, Tianming Liu 0001, Lei Guo 0002, Stephen T. C. Wong   +3 more
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QUANTITATIVE EVALUATION OF DEFORMABLE IMAGE REGISTRATION

2007 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2007
In this paper, a concept based on unbalanced energy is proposed to evaluate deformable registration algorithms. The new concept is demonstrated through the comparison of the ITK "demons" algorithm and thin-plate spline interpolation, performed on a prostate patient's CT images.
Hualiang Zhong, Jeffrey V. Siebers
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Deformable Registration for IGT

2013
Intra-procedural imaging has led to dramatic advances in medicine by enabling interventions that were previously not feasible, reducing negative side effects, and improving clinical outcomes over a broad domain of clinical applications. The broad objective of image registration applied to image-guided procedures is to fuse the variety of information ...
Andriy Fedorov, Petter Risholm, William M. Wells   +2 more
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Breast Image Registration and Deformation Modeling

Critical Reviews™ in Biomedical Engineering, 2012
Image-based examination of the breast facilitates the detection of breast diseases, particularly of present benign and malignant lesions. For computer-aided processing of serial and multimodal clinical data, both for visual correlation and quantitative analysis, automated image-registration methods are an indispensable tool.
Tobias, Boehler, Fabian, Zoehrer, Markus, Harz, Horst Karl, Hahn   +3 more
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Deformable image registration with geometric changes

Frontiers of Information Technology & Electronic Engineering, 2015
Geometric changes present a number of difficulties in deformable image registration. In this paper, we propose a global deformation framework to model geometric changes whilst promoting a smooth transformation between source and target images. To achieve this, we have developed an innovative model which significantly reduces the side effects of ...
Yu Liu, Bo Zhu
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Modeling topological changes in deformable registration

2010 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2010
Topological changes are common in brain MR images for aging or disease studies. For deformable registration algorithms, which are formulated as a variational problem and solved by the minimization of certain energy functional, topological changes can cause false deformation in the resulting vector field, and affect algorithm convergence.
Xiaoxing Li, Chris Wyatt 0001
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An algebraic framework for deformable image registration

2016 23rd International Conference on Pattern Recognition (ICPR), 2016
This paper presents a novel approach to deformable image registration using a parametric transformation model. The aligning transformation is simply found by solving a system of non-linear equations. Each equation is generated by integrating the product of a set of polynomial functions and the image intensity function over corresponding image domains ...
Zsolt Sánta, Zoltan Kato
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Data-driven registration for local deformations

Pattern Recognition Letters, 1996
We present a new data-driven feature-point registration method for image sequences. This method is based on a modified Kohonen network model that performs local non-affine transformations based on a point's neighbourhood context. This new method is ideal for non-real time applications where the situation is too complex to enable an operational ...
Stefan Huwer, Jürgen Rahmel, Aldo von Wangenheim   +2 more
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Elastic Registration of 3D Deformable Objects

2012 International Conference on Digital Image Computing Techniques and Applications (DICTA), 2012
A novel correspondence-less approach is proposed to find a non-linear aligning transformation between a pair of deformable 3D objects. Herein, we consider a polynomial deformation model, but our framework can be easily adapted to other common deformations. The basic idea of the proposed method is to set up a system of nonlinear equations whose solution
Zsolt Sánta, Zoltan Kato
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Deformable image registration based on elastodynamics

Machine Vision and Applications, 2015
This paper presents a novel method for 2D inter-subject non-rigid image registration. It is motivated by the ideas derived from elastodynamics which is the subclass of linear elastic theory. We propose to model the non-rigid deformations as elastic waves which are characterized by elastodynamics wave equation. Our registration method is formulated in a
Sahar Ahmad, Muhammad Faisal Khan
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