OICE Wiki

This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong.
====== Affine Registration ======
{{ :affine_registration.jpg?nolink| }}

=== Parameters: ===
  * **initial transformation:**\\ 12 numbers specifying the initial transformation before optimization. The first 3 parameters specify the angles around the z-, the rotated x- and the double-rotated z-axis, parameters 4-6 specify the translation along the x-, y- and z-axis, parameters 7-9 specify the scale along the x-, y- and z-axis, the remaining parameters 10-15 specify the shearing.
  * **tolerance:**\\ The lower the value for tolerance, the longer the optimization will take, resulting in an improved result.
  * **coarse level:**\\ Optimization is performed in a multi-resolution approach. A coarse level of 3 means that the images are resampled 3 times (by a factor of 2), so the image size is 1/8th of the original image in each dimension, for the first optimization round.
  * **fine level:**\\ The final optimization is performed on this level. A value of 1 means that the final optimization is performed on half the original resolution.
  * **Template:**\\ The reference image to which the model image is aligned.
  * **Model:**\\ The image that is going to be transformed to match the template.
  * **out-of-bounds value**: \\ Should be set to the estimated background value in the images.
  * **bounding box:**\\ 6 numbers specifying the offset (x, y and z) and the extent (w, h and d) of an optional bounding box. If set, optimization will only consider this region (in the template image).
  * **Rotation:**
  * **Translation:**
  * **Scaling:**
  * **Shearing:** \\ Only selected parameters are optimized.
  * **Presets:** \\ Some presets for convenience. Selecting "Affine" will select all check boxes above, "Rigid" will select only rotation and translation parameters, etc.