Dillenseger, J.L.Sousa Santos, B.2015-11-112015-11-1119981017-4656https://doi.org/10.2312/egs.19981002This paper will compare two 3D surface detection and normal estimation operators applied on a rough voxel database. These approaches can be applied as virtual endoscopy for the exploriation of 3D medical image volumes. The data context will be first explained, the two methodologies will be then described and evaluated on a 3D model data. Keywords - Surface detector, normal estimator, 3D moment operator, virtual endoscopy.