Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Automatic 3D modelling of craniofacial form   Three-dimensional models of craniofacial variation over the general
population are useful for assessing pre- and post-operative head shape when
treating various craniofacial conditions, such as craniosynostosis. We present
a new method of automatically building both sagittal profile models and full 3D
surface models of the human head using a range of techniques in 3D surface
image analysis; in particular, automatic facial landmarking using supervised
machine learning, global and local symmetry plane detection using a variant of
trimmed iterative closest points, locally-affine template warping (for full 3D
models) and a novel pose normalisation using robust iterative ellipse fitting.
The PCA-based models built using the new pose normalisation are more compact
than those using Generalised Procrustes Analysis and we demonstrate their
utility in a clinical case study.

27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin