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Sampling Shapes from a Shape Model

We have seen that, thanks to the marginalisation property of a Gaussian Process, any finite marginal distribution is a multivariate normal distribution. One important consequence of this is that we …

The marginalisation property

Gaussian Processes provide us with a mathematically elegant way of modelling shape deformations. As shape modelling is an application-oriented task, we are not primarily interested in mathematical elegance, but rather …

Gaussian Processes and point distribution models

Here we look at the relation between Gaussian Processes and point distribution models that are the statistical shape models you have been manipulating so far in Scalismo. After watching this …

Scalismo Lab: rigid alignment

In this hands-on step, you will learn how to rigidly align a dataset of misaligned faces in Scalismo. We will start by quickly defining the notion of rigid point transformation …

From meshes to deformation fields

Learn how to view a set of surfaces that are in correspondence as a set of deformation fields. This view is important as it allows us to apply the Gaussian …

Superimposing shapes

In the previous video we have seen that if we are given shapes in correspondence, then computing a shape model is straight-forward. However, in our exposition we were a bit …

Learning a model from example data

It is very difficult to explicitly model the shape variations that define a shape family. Fortunately, we can still obtain very powerful shape models, by learning the typical deformations that …

Modelling shape deformations

The central question in shape modelling is how to model the shape variations within a shape family. In this course, the answer to this question is by means of the …

The multivariate normal distribution

The main assumption underlying the shape models we study in this course is that the shape variations can be modelled using a normal distribution. In this article, we summarise the …

Basic notions of shape modelling

In this course, you will learn how to build mathematical models that characterise the typical variations of a class of shapes. In this video we start our exploration of shape …

Scalismo Lab: Hello Scalismo!

In this step, you will have your first interaction with the Scalismo Lab environment and shape modelling data structures. You will have the chance to reproduce the operations you’ve seen …