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Identity Concealment of Brain Images by Masking |
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PP: 1511-1517 |
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Author(s) |
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Ruoyu Du,
Hyo Jong Lee,
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Abstract |
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| In this paper, a novel method of concealment of facial information was proposed to protect the patient’s privacy. It consists
with two steps: the construction of a standard brain template and substitution of the template to a new brain image data. Fifteen medical
brain images are used to build the standard brain template. Registration and normalization procedures are applied to construct the
standard brain templates by using B-Spline registration. Segmentation is used to substitute the original image for the template image
and brain extraction. Canny-edge Level set segmentation algorithm is applied to segment a scalp-skull part from a whole brain volume
data. New medical brain images are substituted for the standard template to construct the anonymous face models. In order to verify the
validity of the anonymous face model, volumes of extracted brains from an original test brain and its anonymous brain were compared.
The result shows that the actual brain part from the anonymous brain is exactly same as one which comes from an original medical
brain image. |
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