Resumen
Magnetic resonance imaging (MRI) system projects the anatomical structures of brain ontospatial domain. Three-dimensional (3D) construction of brain tumor using several slides of MRI hasalways been of keen interest for diagnosis and for research purpose. This paper presents a threedimensional brain image reconstruction methodology which is very much helpful in predicting the depthof any abnormality in the image and also proposes an active contour based approach for the extraction ofthe abnormal (tumor) region. The extracted regions are modeled using Iso surface 3D view models.