Bias Field Correction of Breast MR Images

We present a method to automatically estimate and remove the bias eld of MR images where there is a single dominant tissue class. Assuming that a multi-class image is corrupted by a multiplicative, lowfrequency bias eld, the method evaluates the bias eld on a single tissue class, and extends it to the whole image. The algorithm works iteratively, interleaving tissue class domain and bias eld estimation using B-spline.