Question

In: Physics

List the factors that comprise the image formation model. Describe each briefly.

List the factors that comprise the image formation model. Describe each briefly.

Solutions

Expert Solution

Image Formation Model consists of following

  • Shape model: consists of shapes: , . (e.g. ventricles, putamen, hippocampus, ...)
  • Transformation: can be any spatial transformation within a specified set. The set can include non-linear warps with arbitrarily large number of Degrees Of Freedom. This transformation applies to all of the shapes, .
  • Image generation model:

    where are intensity scaling parameters and generates the th basis image of a shape ..
  • Image measurement model:

    where is a spatially uncorrelated Gaussian noise process with , .

Note that all images (, , , etc) are treated as vectors of length , where is the number of voxels in the image.


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