relation: http://miis.maths.ox.ac.uk/miis/719/ title: Efficient description of shape perturbations creator: Allwright, D.J. creator: Chen, Yujia creator: Gower, Artur creator: Lam, Kei Fong creator: Chakhchoukh, Amine creator: Cowley, Stephen creator: Alistair, Forbes creator: Guterman, Alexander creator: Hammerton, Paul creator: Jia, Dewei creator: Klimek, Aleksander creator: McCarthy, Michael creator: Rockstroh, Parousia creator: Ziolo, Piotr subject: Aerospace and defence description: Airbus wish to have efficient ways of describing perturbations of a manu- factured aerofoil from its design shape. The typical kind of perturbations expected are waves, steps, and bumps, and automatic classification into the classes is desired. Various possible methods of analysis were pro- posed and studied in some detail, including projection onto suitable basis functions, wavelets, and radial basis functions. Other methods were studied in less detail, but with the aim of giving a digital signature of defects that could be used to classify them. date: 2012 type: Study Group Report type: NonPeerReviewed format: application/pdf language: en identifier: http://miis.maths.ox.ac.uk/miis/719/1/ESGI85-Airbus_CaseStudy.pdf identifier: Allwright, D.J. and Chen, Yujia and Gower, Artur and Lam, Kei Fong and Chakhchoukh, Amine and Cowley, Stephen and Alistair, Forbes and Guterman, Alexander and Hammerton, Paul and Jia, Dewei and Klimek, Aleksander and McCarthy, Michael and Rockstroh, Parousia and Ziolo, Piotr (2012) Efficient description of shape perturbations. [Study Group Report]