Title :
Detection of objects in RF ultrasonic images using 2-D spatial phase techniques
Author :
Karoubi, B. ; Zhu, Y.M. ; Gimenez, G. ; Bigiln, J.
Author_Institution :
CREATIS, CNRS, Villeurbanne, France
Abstract :
Radio-frequency (RF) ultrasonic data carry complete information about the object to be analyzed. Conventional analysis methods consist of exploiting only one-dimensional envelope information of the RF data, phase information being often neglected. A method is presented that is based on exploiting two-dimensional spatial phase information of RF data through the use of Gabor and Mexican hat filters. The method is illustrated with the aid of examples on physical RF data. The obtained results demonstrate the interest of spatial phase for the detection of objects in RF ultrasonic images
Keywords :
digital filters; image recognition; object detection; ultrasonic imaging; 2D spatial phase techniques; Gabor filter; Mexican hat filter; RF ultrasonic images; radio-frequency ultrasonic data; Envelope detectors; Gabor filters; Image analysis; Information analysis; Information filtering; Information filters; Object detection; Phase detection; Phase noise; Radio frequency;
Conference_Titel :
Image Processing, 1996. Proceedings., International Conference on
Conference_Location :
Lausanne
Print_ISBN :
0-7803-3259-8
DOI :
10.1109/ICIP.1996.560959
