Fig. 10. Validation of the model using coronal sections. In each row, the sequence of images is the interleaved coronal MRI, the coronal slice through the three-dimensional model and the symmetric difference between them. In the images showing the symmetric differences, white indicates areas that are in both coronal images, whereas grey indicates areas that differ. (A) Transition; sequence 7732-S3, frame 18. (B) Peak protraction; sequence 7732-S3, frame 24. (C) Peak retraction; sequence 7732-S3, frame 36.