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Method and system for cone beam computed tomography high density object artifact reduction
专利权人:
Shoupu Chen
发明人:
Shoupu Chen,Lawrence A. Ray
申请号:
US12710522
公开号:
US08768027B2
申请日:
2010.02.23
申请国别(地区):
US
年份:
2014
代理人:
摘要:
A method of providing a corrected reconstructed computed tomography image accesses image data for computed tomography images of a subject, identifying a subset of the computed tomography images that contain high density features. At least one high density feature is detected in each of the identified subset. The high density feature is classified and a compensation image is formed by distributing pixels representative of tissue over the classified high density feature. A difference sinogram is generated for each image in the identified subset of images by subtracting a first sinogram of the high density feature from a second sinogram of the original image. A resultant sinogram is generated for each image in the identified subset by adding a third sinogram generated according to the compensation image to the difference sinogram. The corrected reconstructed computed tomography image is formed according to the resultant sinogram generated for each image in the identified subset of images.
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中国工程科技知识中心
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