Marching cubes: A high resolution 3D surface construction algorithm
SIGGRAPH '87 Proceedings of the 14th annual conference on Computer graphics and interactive techniques
Display of Surfaces from Volume Data
IEEE Computer Graphics and Applications
Octrees for faster isosurface generation
VVS '90 Proceedings of the 1990 workshop on Volume visualization
A Lipschitz method for accelerated volume rendering
VVS '94 Proceedings of the 1994 symposium on Volume visualization
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
Virtual voyage: interactive navigation in the human colon
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
Accelerated volume rendering using homogeneous region encoding
VIS '97 Proceedings of the 8th conference on Visualization '97
Adaptive perspective ray casting
VVS '98 Proceedings of the 1998 IEEE symposium on Volume visualization
Object voxeliztion by filtering
VVS '98 Proceedings of the 1998 IEEE symposium on Volume visualization
A visibility determination algorithm for interactive virtual endoscopy
Proceedings of the conference on Visualization '00
Image based rendering with stable frame rates
Proceedings of the conference on Visualization '00
Mastering interactive virtual Bronchioscopy on a Low—end PC
Proceedings of the conference on Visualization '00
Cell-based first-hit ray casting
VISSYM '02 Proceedings of the symposium on Data Visualisation 2002
Accelerated volume ray-casting using texture mapping
Proceedings of the conference on Visualization '01
Anti-Aliased volume extraction
VISSYM '03 Proceedings of the symposium on Data visualisation 2003
Perspective Projection through Parallel Projected Slabs for Virtual Endoscopy
SCCG '01 Proceedings of the 17th Spring conference on Computer graphics
STEPS - An Application for Simulation of Transsphenoidal Endonasal Pituitary Surgery
VIS '04 Proceedings of the conference on Visualization '04
Advanced Virtual Endoscopic Pituitary Surgery
IEEE Transactions on Visualization and Computer Graphics
Technical Section: Context-aware mesh smoothing for biomedical applications
Computers and Graphics
Perspective isosurface and direct volume rendering for virtual endoscopy applications
EUROVIS'06 Proceedings of the Eighth Joint Eurographics / IEEE VGTC conference on Visualization
| Hi-index | 0.00 |
Many applications of virtual endoscopy require the display of background objects behind the semi-transparent surface of the investigated organ. This paper deals with pre-processing and visualization of background objects for virtual endoscopy. A new first-hit ray casting technique for efficient perspective iso-surfacing of arbitrarily selected objects of interest is described: Visualization is performed without the use of dedicated hardware or data structures limiting flexibility (e.g., polygonal meshes or distance fields). The speedup is gained by exploiting inter-pixel coherency and by finding a near-optimal compromise between reduction of ray-tracking distances and limitation of the administrational cost associated with this reduction. The algorithm was developed by enhancing the previously published cell-based first-hit ray casting algorithm. This paper describes the original algorithm and explains the extensions needed to achieve interactive rendering of background objects.