12 May 2004 MRI intensity nonuniformity correction using simultaneously spatial and gray-level histogram information
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Abstract
A novel approach for correcting intensity nonuniformity in magnetic resonance imaging (MRI) is presented. This approach is based on the fusion of spatial and gray-level histogram information. Spatial information about intensity nonuniformity is obtained using cubic B-spline smoothing. Gray-level histogram information of the image corrupted by intensity nonuniformity is exploited from a frequential point of view. The proposed correction method is illustrated using both physical phantom and human brain images. The results are consistent with theoretical prediction, and demonstrate a new way of dealing with intensity nonuniformity problems.
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Julien Milles, Yue Min Zhu, Nankuei Chen, Lawrence P. Panych, Gerard Gimenez, Charles R.G. Guttmann, "MRI intensity nonuniformity correction using simultaneously spatial and gray-level histogram information", Proc. SPIE 5370, Medical Imaging 2004: Image Processing, (12 May 2004); doi: 10.1117/12.532325; https://doi.org/10.1117/12.532325
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