Jaramillo, A., Boulanger, P., Prieto F. (2009) Inspection of 3D Deformable Parts Using Radial Basis. In Proceeding of 9th International Conference on Quality Control by Artificial Vision, Wels, Austria .

In industry, one of the most common schemes to perform automated inspection tasks consists of matching a design represented by a 3D CAD model with 3D data measured by geometric sensors such as laser scanner or industrial CT. To carry out this comparison it is necessary to first align or register both the CAD model and the part 3D measurements. Usually, the part to be inspected can be considered to be rigid where a simple rigid body transformation is enough to achieve alignment with the CAD model. However, modern manufactured parts are becoming more and more flexible due to new materials such as composites. Traditional inspection system requires in this case that the part have to be fixed in place using clamps. This process is time-consuming and difficult to automate. What is necessary is an inspection system capable of applying to the CAD model a general transformation that includes the deformation of a part. In this work, we propose the use of radial basis functions (RBFs) to apply a non-rigid transformation to the model to represent deformation. The new approach is evaluated on several models and compared to Finite Elements Model.

Back to to publications.