نتایج جستجو برای: thin plate spline

تعداد نتایج: 209585  

2003
Sang-Mook Lee Lynn Abbott Neil A. Clark Philip A. Araman

Splines can be used to approximate noisy data with a few control points. This paper presents a new curve matching method for deformable shapes using two-dimensional splines. In contrast to the residual error criterion [7], which is based on relative locations of corresponding knot points such that is reliable primarily for dense point sets, we use deformation energy of thin-plate-spline mapping...

Journal: :IEICE Transactions 2009
Yiwei Jiang De Xu Na Liu Congyan Lang

Moving object completion is a process of completing moving object’s missing information based on local structures. Over the past few years, a number of computable algorithms of video completion have been developed, however most of these algorithms are based on the pixel domain. Little theoretical and computational work in video completion is based on the compressed domain. In this paper, a movi...

2001
Isabelle Corouge Christian Barillot Pierre Hellier Pierre Toulouse Bernard Gibaud

Within the scope of three-dimensional brain imaging we propose an inter-individual fusion scheme to register functional activations relatively to anatomical cortical structures, the sulci. This approach is local and non-linear. It relies on a statistical sulci shape model accounting for the inter-individual variability of a population of subjects, and providing deformation modes relatively to a...

2006
K. Marias S. Parbhoo A. M. Seifalian

Our aim is to establish accurate correspondences between temporal mammograms in order to improve the detection of tumours. We propose a method for detecting abnormalities after aligning a pair of mammograms using thin-plate spline interpolation based on corresponding points on the breast boundary. We also suggest a method for the automatic detection of landmarks within the breast tissue. We sho...

2005
Chanjira Sinthanayothin Wisarut Bholsithi

This article has shown the simulation change after moving the landmarks within medical image by applying 3-dimension thin plate spline through the following 3 steps: The first step is to write the program to open and display 3-dimension medical images by using Borland C++ Builder 6 as the compiler along with OpenGL as the engine to display the images. The second step is to distort 3 dimension i...

A. Abbaspour Tehrani Fard, F. Babapour Mofrad, R. Aghaeizadeh Zoroofi, Sh. Akhlaghpoor, Y. Sato, Y.W. Chen,

Background: In nuclear medicine application often it is required to use computational methods for evaluation of organ absorbed dose. Monte Carlo simulation and phantoms have been used in many works before. The shape, size and volume in organs are varied, and this variation will produce error in dose calculation if no correction is applied. Materials and Methods: A computational framewo...

Journal: :International Journal of Geographical Information Science 2007
Endre Katona

Thin plate spline interpolation is a widely used approach to generate a digital elevation model (DEM) from contour lines and scattered data. In practice, contour maps are scanned and vectorized, and after resampling in the target grid resolution, interpolation is performed. In this paper we demonstrate the limited accuracy of this process, and propose a high resolution processing method (withou...

Journal: :SIAM J. Numerical Analysis 2003
Stephen G. Roberts Markus Hegland Irfan Altas

A new smoothing method is proposed which can be viewed as a finite element thin plate spline. This approach combines the favourable properties of finite element surface fitting with the ones of thin plate splines. The method is based on first order techniques similar to mixed finite element techniques for the biharmonic equation. The existence of a solution to our smoothing problem is demonstra...

2013
Hao Sheng Chen Lou Wujian Xu Chao Li Lingli Mou

Aiming at the mosaic technology of the orthophoto acquired by Chinese remote sensing satellite CE-1, a thin-plate spline (TPS) function based method of image mosaic is proposed while the traditional mosaic method seems impossible. With the advantages of TPS (Thin-plate Spline) function in image transformer, the image fusion technology is introduced to get the seamless image mosaic result. Consi...

2003
C. Fookes

Recently there has emerged a need to compute multimodal non-rigid registrations in a lot of clinical applications. To date, the viscous fluid algorithm is perhaps the most adept method at recovering large local misregistrations that exist between two images. However, this model can only be used on images from the same modality as it assumes similar intensity values between images. This paper pr...

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