2000
DOI: 10.1006/cviu.1999.0816
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Interpolation Artefacts in Mutual Information-Based Image Registration

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Cited by 232 publications
(182 citation statements)
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References 12 publications
(12 reference statements)
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“…In most applications, it is of paramount importance to limit as much as possible the grey-value errors introduced by interpolation. For example, in multimodality registration of computed tomography (CT), magnetic resonance imaging (MRI), or positron emission tomography (PET) data, it has been observed that interpolation errors influence the value of the optimization cost function, which may lead to registration errors [42]. Similar problems had been reported earlier in monomodality registration of MR images [13].…”
Section: Introductionsupporting
confidence: 52%
“…In most applications, it is of paramount importance to limit as much as possible the grey-value errors introduced by interpolation. For example, in multimodality registration of computed tomography (CT), magnetic resonance imaging (MRI), or positron emission tomography (PET) data, it has been observed that interpolation errors influence the value of the optimization cost function, which may lead to registration errors [42]. Similar problems had been reported earlier in monomodality registration of MR images [13].…”
Section: Introductionsupporting
confidence: 52%
“…The downsampling is avoided since it causes histogram changes, which in turn may cause some of the artefacts similar to the ones mentioned in [42].…”
Section: Optimization Algorithmmentioning
confidence: 99%
“…This is less of a problem than it might seem, since optimisation functions sample the cost function surface quite sparsely and the local trends in surface are not strongly affected by hiss. STD and first order PVE are somewhat prone to bias due to glitches [2], which can be more serious. The effect of glitches is seen in some results, but further discussion is not possible here due to space constraints.…”
Section: Artefactsmentioning
confidence: 99%
“…The obvious exceptions are several papers that discuss artefacts on the MI cost function surface [2,3] and optimisation strategies [4]. However, only empirical analyses are made (unlike the analytic comparisons here).…”
Section: Introductionmentioning
confidence: 99%