3D visualization to assist iterative object definition from medical images

Author(s)

Audigier, Romaric ; Lotufo, Roberto ; Falcão, Alexandre

• Document type: Journal article
• Source: Computerized Medical Imaging and Graphics; v. 30, n. 4, p. 217-230, June 2006.
• Field of knowledge: Physical Sciences and Mathematics - Computer Science

Abstract

In medical imaging, many applications require visualization and/or analysis of three-dimensional (3D) objects (e.g. organs). At same time, object definition often requires considerable user assistance. In this process, objects are usually defined in an iterative way and their visualization during the process is very important to guide the user’s actions for the next iteration. The usual procedure provides slice visualization during object definition (segmentation) and 3D visualization afterward. In this paper, we propose and evaluate efficient methods to provide 3D visualization during iterative object definition. The methods combine the differential image foresting transform for segmentation with voxel splatting/ray casting for visualization. (AU)

• FAPESP's process: 03/13424-1 - Identification and characterization of etiology, mechanisms of damage, neuronal dysfunction, and molecular defects in mesial temporal lobe epilepsy and its relationship with response to treatment
• Grantee: Iscia Teresinha Lopes Cendes
• Support Opportunities: Research Projects - Thematic Grants