Journal article
Statistical methods in computational anatomy
Statistical methods in medical research, Vol.6(3), pp.267-299
06/1997
DOI: 10.1177/096228029700600305
PMID: 9339500
Abstract
This paper reviews recent developments by the Washington/Brown groups for the study of anatomical shape in the emerging new discipline of computational anatomy. Parametric representations of anatomical variation for computational anatomy are reviewed, restricted to the assumption of small deformations. The generation of covariance operators for probabilistic measures of anatomical variation on coordinatized submanifolds is formulated as an empirical procedure. Populations of brains are mapped to common coordinate systems, from which template coordinate systems are constructed which are closest to the population of anatomies in a minimum distance sense. Variation of several one-, two and three-dimensional manifolds, i.e. sulci, surfaces and brain volumes are examined via Gaussian measures with mean and covariances estimated directly from maps of templates to targets. Methods are presented for estimating the covariances of vector fields from a family of empirically generated maps, posed as generalized spectrum estimation indexed over the submanifolds. Covariance estimation is made parametric, analogous to autoregressive modelling, by introducing small deformation linear operators for constraining the spectrum of the fields.
Details
- Title: Subtitle
- Statistical methods in computational anatomy
- Creators
- Michael Miller - Department of Electrical Engineering, Washington University, St Louis, Missouri, USAAyananshu Banerjee - Department of Electrical Engineering, Washington University, St Louis, Missouri, USAGary Christensen - Department of Electrical Engineering and Computer Engineering, The University of Iowa, Iowa City, IA 52242, USASarang Joshi - Department of Electrical Engineering, Washington University, St Louis, Missouri, USANavin Khaneja - Department of Electrical Engineering, Washington University, St Louis, Missouri, USAUlf Grenander - Division of Applied Mathematics, Brown University, Providence, Rhode Island, USALarissa Matejic - Division of Applied Mathematics, Brown University, Providence, Rhode Island, USA
- Resource Type
- Journal article
- Publication Details
- Statistical methods in medical research, Vol.6(3), pp.267-299
- Publisher
- Sage Publications; Thousand Oaks, CA
- DOI
- 10.1177/096228029700600305
- PMID
- 9339500
- ISSN
- 0962-2802
- eISSN
- 1477-0334
- Language
- English
- Date published
- 06/1997
- Academic Unit
- Electrical and Computer Engineering; Radiation Oncology; Radiation Research Laboratory
- Record Identifier
- 9984047619302771
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