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Spectral projection data de-noising with anti-correlation filter
专利权人:
KONINKLIJKE PHILIPS N.V.
发明人:
Bernhard Johannes Brendel
申请号:
US14912106
公开号:
US09978158B2
申请日:
2014.08.29
申请国别(地区):
US
年份:
2018
代理人:
摘要:
A method includes receiving at least two sets of noisy basis material line integrals, each set corresponding to a different basis material and filtering the at least two sets of noisy basis material line integrals with an anti-correlation filter that at least includes a regularization term with balancing regularization factors, thereby producing de-noised basis material line integrals. An imaging system (100) includes a projection data processor (116) with an anti-correlation filter (118) that filters at least two sets of noisy basis material line integrals, each set corresponding to a different basis material, thereby producing de-noised basis material line integrals, wherein the anti-correlation filter includes a regularization term with regularization balancing factors.
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