Zobrazeno 1 - 10
of 75
pro vyhledávání: '"H.S. Stiehl"'
Publikováno v:
Image and Vision Computing. 24:375-379
The aim of medical image registration is to bring different images into the best possible spatial correspondence in order to obtain complementary information for clinical applications. When using physically-based techniques for image registration the
Publikováno v:
IEEE Transactions on Systems, Man and Cybernetics, Part B (Cybernetics). 33:554-561
We present a novel approach to the coarse segmentation of tubular structures in three-dimensional (3-D) image data. Our algorithm, which requires only few initial values and minimal user interaction, can be used to initialize complex deformable model
Publikováno v:
Computer Vision and Image Understanding. 90:153-168
We introduce a spline-based elastic registration scheme which is based on a well-defined minimizing functional for which the solution can be stated analytically. In this work, we consider the integration of anisotropic landmark errors as well as addi
Publikováno v:
IEEE Transactions on Image Processing. 10:852-864
We investigate several iterative numerical schemes for nonlinear variational image smoothing and segmentation implemented in parallel. A general iterative framework subsuming these schemes is suggested for which global convergence irrespective of the
Publikováno v:
IEEE Transactions on Medical Imaging. 20:526-534
The authors consider elastic image registration based on a set of corresponding anatomical point landmarks and approximating thin-plate splines. This approach is an extension of the original interpolating thin-plate spline approach and allows to take
Publikováno v:
Real-Time Imaging. 7:127-142
Reconstruction of given noisy data is an ill-posed problem and a computationally intensive task. Nonlinear regularization techniques are used to find a unique solution under certain constraints. In our contribution we present a parallel mixed-signal
Publikováno v:
Image and Vision Computing. 19:87-96
Common elastic registration schemes based on landmarks and radial basis functions (RBFs) such as thin-plate splines or multiquadrics are global. Here, we introduce radial basis functions with compact support for elastic registration of medical images
Publikováno v:
CVPR
We introduce radial basis functions with compact support for elastic registration of medical images. With these basis functions the influence of a landmark on the registration result is limited to a circle in 2D and, respectively, to a sphere in 3D.
Publikováno v:
ICPR (3)
Differently scaled intensity discontinuities along the gradient direction of scaled oriented contrast edges define significant X-ray CT and MR image structures. Reliable detection and quantitative description of such scaled intensity discontinuities
Autor:
Heiko Neumann, H.S. Stiehl
Publikováno v:
[Proceedings 1992] IJCNN International Joint Conference on Neural Networks.
A mechanism is proposed for the emergent segmentation of junctions with a priori unknown position, orientation, and order, i.e. number of inducing contrast edges, in static luminance fields. Emergent segmentation of visual scenes is a prerequisite fo