Real-time volume rendering based on gradient adaptive shading / 南方医科大学学报
Journal of Southern Medical University
;
(12): 2156-2160, 2010.
Article
Dans Chinois
| WPRIM
| ID: wpr-323707
ABSTRACT
For medical image volume rendering, it is very difficult to simultaneously visualize interior and exterior structures while preserving clear shape cues. Highly transparent transfer functions produce cluttered images with many overlapping structures, while clipping techniques completely remove possibly important contextual information. To address this issue, A gradient adaptive shading based illumination model is proposed and implemented in CUDA architecture. The coefficients of ambient, diffuse and specular lighting are tuned adaptively according to gradient. The experiments show that our method is capable of preserving 3-D contextual information in medical image dataset while still show clear boundaries with real-time interactive speed.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Algorithmes
/
Infographie
/
Simulation numérique
/
Reconnaissance automatique des formes
/
Interprétation d'images assistée par ordinateur
/
Amélioration d'image
/
Artéfacts
/
Imagerie tridimensionnelle
/
Méthodes
/
Modèles théoriques
Limites du sujet:
Humains
langue:
Chinois
Texte intégral:
Journal of Southern Medical University
Année:
2010
Type:
Article
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