A light field-based fast computation of digitally reconstructed radiographs / 南方医科大学学报
Journal of Southern Medical University
;
(12): 1537-1539, 2007.
Article
in Chinese
| WPRIM
| ID: wpr-283088
ABSTRACT
Generation of digitally reconstructed radiographs (DDRs) is key to image-guided radiation therapy and widely used for 2D-3D image registration to verify the patient's position. The classic algorithms to generate DRRs with ray casting is time consuming to hamper the registration process. The authors describe the attempt to extend the light field rendering techniques from computer graphics, using the light field computed from ray casting to interpolate a DRRs image from a novel fixed viewpoint. Because most of the computation is performed in a preprocessing step, the speed is greatly accelerated and satisfactory DRRs can be obtained.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Radiotherapy
/
Algorithms
/
Computer Graphics
/
Radiographic Image Interpretation, Computer-Assisted
/
Imaging, Three-Dimensional
Limits:
Humans
Language:
Chinese
Journal:
Journal of Southern Medical University
Year:
2007
Type:
Article
Similar
MEDLINE
...
LILACS
LIS