Compensation of Spatial Inhomogeneity in MRI Based on a Parametric Bias Estimate
نویسندگان
چکیده
A novel bias correction technique is proposed based on the estimation of the parameters of a polynomial bias eld directly from image data. The procedure overcomes diiculties known from homomor-phic ltering or from techniques assuming an initial presegmented image. The only parameters are a set of expected class means and the standard deviation. Applications to various MR images illustrate the performance.
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