In: International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP) |. International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP-2018), January 27-29, Funchal, Madeira, Portugal, Pages 123-133, Vol. 5, ISBN 978-989-758-290-5, SciTePress, 2018.