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Searching for authors named "Christos Davatzikos" – sorted by Relevance.

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  • Brain Morphometrics Using Geometry-Based Shape Transformations  
  • by Christos Davatzikos — 1999 — In Proceedings of Workshop on Biomedical Image Registration
  • …This paper presents a methodology for shape analysis of anatomical structures. A template shape is used as a unit, and a shape transformation mapping the template to a particular structure is used to quantify the shape of the structure with respect to the template. The geometric characteristics of t…
  • Cited by 2 (0 self) – Add To MetaCart
  • Spatial Normalization of 3D Brain Images Using Deformable Models  
  • by Christos Davatzikos, Christos Davatzikos — 1996 — Journal of Computer Assisted Tomography
  • …Objective. The spatial normalization and registration of tomographic images from different subjects is a major problem in several medical imaging areas, including functional image analysis, morphometrics, and computer aided neurosurgery. The focus of this paper is the development of a computerized m…
  • Cited by 44 (2 self) – Add To MetaCart
  • Nonlinear Registration of Brain Images Using Deformable Models  
  • by Christos Davatzikos — 1996 — Proc. of the Workshop on Math. Meth. in Biom. Image Anal
  • …A key issue in several brain imaging applications, including computer aided neurosurgery, functional image analysis, and morphometrics, is the spatial normalization and registration of tomographic images from different subjects. This paper proposes a technique for spatial normalization of brain imag…
  • Cited by 13 (3 self) – Add To MetaCart
  • Low-constant Parallel Algorithms for Finite Element Simulations using Linear Octrees  
  • by Hari Sundar, Christos Davatzikos
  • …In this article we propose parallel algorithms for the construction of conforming finite-element discretization on linear octrees. Existing octree-based discretizations scale to billions of elements, but the complexity constants can be high. In our approach we use several techniques to minimize over…
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  • Adaptive-Focus Statistical Shape Model for Segmentation of 3D MR Structures  
  • by Dinggang Shen, Christos Davatzikos — 2000 — IEEE Trans. on Medical Imaging
  • …. This paper presents a deformable model for automatically segmenting objects from volumetric MR images and obtaining point correspondences, using geometric and statistical information in a hierarchical scheme. Geometric information is embedded into the model via an affine-invariant attribute vec…
  • Cited by 13 (5 self) – Add To MetaCart
  • An Adaptive-Focus Deformable Model Using Statistical and Geometric Information  
  • by Dinggang Shen, Christos Davatzikos — 2000 — IEEE Transactions on Pattern Analysis and Machine Intelligence
  • …An active contour (snake) model is presented, with emphasis on medical imaging applications. There are three main novelties in the proposed model. First, an attribute vector is used to characterize the geometric structure around each point of the snake model; the deformable model then deforms in …
  • Cited by 12 (3 self) – Add To MetaCart
  • HAMMER: Hierarchical attribute matching mechanism for elastic registration  
  • by Dinggang Shen, Christos Davatzikos — 2002 — IEEE Trans. Med. Imaging
  • …A new approach is presented for elastic registration of medical images, and is applied to magnetic resonance images of the brain. Experimental results demonstrate very high accuracy in superposition of images from different subjects. There are two major novelties in the proposed algorithm. First, it…
  • Cited by 36 (1 self) – Add To MetaCart
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