Title :
Adaptive spatial compounding with warping on ocular imaging
Author :
Pan, Leo ; Rohling, Robert
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of British Columbia, Vancouver, BC, Canada
Abstract :
Adaptive spatial compounding with warping, a nonrigid image registration method developed for needle guidance during an epidural anesthesia is tested on ocular imaging. Ten ex vivo bovine eyes were imaged in total. FWHM values of the pixel intensity along the corneal surface were calculated. It was shown that the adaptive spatial compounding with warping produced the sharpest and the smoothest corneal reflection (FWHM=507.4 um, standard deviation=140.3um) over the conventional spatial compounding method.
Keywords :
biomedical ultrasonics; eye; image registration; medical image processing; ultrasonic imaging; adaptive spatial compounding; bovine eyes; corneal reflection; corneal surface; epidural anesthesia; needle guidance; nonrigid image registration method; ocular imaging; pixel intensity; warping; Atmosphere; Carbon dioxide; Epidermis; Frequency; Microstructure; Monitoring; Resonance; Solids; Ultrasonic imaging; Ultrasonic variables measurement;
Conference_Titel :
Ultrasonics Symposium (IUS), 2009 IEEE International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4389-5
Electronic_ISBN :
1948-5719
DOI :
10.1109/ULTSYM.2009.5441755
