Documentdetail
ID kaart
oai:arXiv.org:2112.13637
Onderwerp
Electrical Engineering and Systems... Computer Science - Computer Vision...Auteur
Zhou, Yuan Tagare, Hemant D.Categorie
Computer Science
Jaar
2021
vermelding datum
31-03-2022
Trefwoorden
parkinson using region normalization imagesBeschrijving
Classifying SPECT images requires a preprocessing step which normalizes the images using a normalization region.
The choice of the normalization region is not standard, and using different normalization regions introduces normalization region-dependent variability.
This paper mathematically analyzes the effect of the normalization region to show that normalized-classification is exactly equivalent to a subspace separation of the half rays of the images under multiplicative equivalence.
Using this geometry, a new self-normalized classification strategy is proposed.
This strategy eliminates the normalizing region altogether.
The theory is used to classify DaTscan images of 365 Parkinson's disease (PD) subjects and 208 healthy control (HC) subjects from the Parkinson's Progression Marker Initiative (PPMI).
The theory is also used to understand PD progression from baseline to year 4.
;Comment: To appear in IEEE BIBM 2021
Zhou, Yuan,Tagare, Hemant D., 2021, Self-normalized Classification of Parkinson's Disease DaTscan Images
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