Title :
Rendering of brain tumors using endoneurosonography
Author :
Cadena, Rubén Machucho ; de la Cruz Rodriguez, S. ; Bayro-Corrochano, Eduardo
Author_Institution :
CINVESTAV, Unidad Guadalajara, Zapopan
Abstract :
We have developed a method to render brain tumors from endoneurosonography. We propose to track an ultrasound probe in successive endoscopic images without relying on an external optic or magnetic tracking system. The probe is tracked using two different methods, one of them based on generalized Hough transform and the other one on particle filters. With the estimation of the pose of the ultrasound probe in several contiguous images we use conformal geometric algebra to compute the geometric transformations that yield the 3D position of the tumor, which was segmented in the ultrasound image using morphological operators. We have used images from brain phantoms to evaluate the performance of the proposed methods and our results show that they are robust.
Keywords :
Hough transforms; algebra; biomedical ultrasonics; brain; endoscopes; mathematical operators; medical image processing; particle filtering (numerical methods); pose estimation; rendering (computer graphics); tumours; ultrasonic imaging; brain tumors; conformal geometric algebra; endoneurosonography; endoscopic images; generalized Hough transform; morphological operators; particle filters; pose estimation; rendering; ultrasound image; Geometrical optics; Magnetic separation; Neoplasms; Optical filters; Particle filters; Particle tracking; Probes; Rendering (computer graphics); Ultrasonic imaging; Yield estimation;
Conference_Titel :
Pattern Recognition, 2008. ICPR 2008. 19th International Conference on
Conference_Location :
Tampa, FL
Print_ISBN :
978-1-4244-2174-9
Electronic_ISBN :
1051-4651
DOI :
10.1109/ICPR.2008.4761335