Parameter in RL-PVC - Githubissues

UCL / PETPVC

Partial Volume Correction in PET

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Parameter in RL-PVC #54

Closed ubersexualShupeng closed 5 years ago

ubersexualShupeng commented 5 years ago

Nice work on the implementation of PVC algorithms. In the PMB paper (PETPVC: a toolbox for performing partial volume correction techniques in positron emission tomography), formula (8), the alpha parameter is the step-size. What is the exact value used in the algorithm in the tool? Can I change it? Thanks.

bathomas commented 5 years ago

Formula 8 refers to RVC rather than RL. The default step size is 1.5. You can modify this by passing the -a or --alpha switch. If incorportating the VanCittertPVCImageFilter into your own code, then you set it via the SetAlpha method.