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. 2016 May 31;16:40. doi: 10.1186/s12880-016-0142-z

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© The Author(s). 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 13 — Overview of the template computation using currents. All surface shape models are transferred into their currents representation (a). The user has to set the resolution parameter λ_W to determine which shape features are to be captured. The template is then computed as the mean shape using an alternate algorithm, minimising the distances between template and each subject (b). Thereby, the template shape is initialised as the mean of the currents and then matched with each subject shape. Crucial is the deformation function φⁱ, which is defined by the moment vectors ß that drive the subject-specific deformation of the template. The user has to set the stiffness of those deformations, λ_V. User input is marked with dashed lines