The Liverpool-York Head Model (LYHM) is an extension of our early prototype head models built in 2015 and published in our arXiv paper (listed below). These included both a cranial profile model which follows the contour of local sagittal symmetry and a full 3D surface model of the face and cranium.
The video below shows a cranium profile model generated from 100 adult males (without beards) in the Headspace dataset. The model was constructed by aligning profiles such that the centre of the cranium was fixed (green cross at origin) as was the angle between the cranium centre and the nasion (-10 degrees). The fixed cyan trace shows the mean across the 100 subject sample and the video animates the first 5 main principal components of form variation (the profiles are not scale normalised) across +-3 standard deviations. The trace changes colour as it moves from one principal component to the next.
The video below shows a full head model generated from the same 100 adult males as the above profile model in the Headspace dataset. Again, the model was constructed by aligning profiles such that the centre of the cranium was fixed as was the angle between the cranium centre and the nasion (-10 degrees). The video animates the first 5 main principal components of form variation (the raw head meshes are not scale normalised) across +-3 standard deviations.
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