title: Efficient sampling in 3-D stereologic volumetry.
abstract: Present 3-D stereology techniques use fixed grid sampling where the sampling grid of test points is randomly placed in 3-D. In order to increase randomness of sampling, in this paper we propose random grid sampling scheme where grid sections are placed randomly over 2-D cross-sections. A random grid sampler has superior efficiency and accuracy compared with fixed grid sampling. Using MR head scans we demonstrate the use of random grid sampling in volumetry of structures in 3-D biomedical images.
authors: School of Applied Science, Nanyang Technological University, Singapore.
authors: J C
authors: JC
authors: Rajapakse
authors: L K
authors: LK
authors: Keong
mesh_terms: D002552:Cerebral Ventricles / Q000033:anatomy & histology*; D006257:Head / Q000033:anatomy & histology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D011897:Random Allocation; D012494:Sampling Studies; D013687:Telencephalon / Q000033:anatomy & histology*