TY  - JOUR
T1  - The Canny Edge Detection Method vs. the Radius of Curvature
Method for Determining the Time of Flight on Ultrasound
AU - Banouni, Hicham AU - Faiz, Bouazza AU - Ouacha, Driss Izbaim El Houssaine AU - Boutaib, Mostapha AU - Derra, Mourad 
JO  - International Journal of System Signal Control and Engineering Application
VL  - 9
IS  - 3
SP  - 48
EP  - 54
PY  - 2016
DA  - 2001/08/19
SN  - 1997-5422
DO  - ijssceapp.2016.48.54
UR  - https://makhillpublications.co/view-article.php?doi=ijssceapp.2016.48.54
KW  - Flight time
KW  -longitudinal wave velocity
KW  -Canny edge detection
KW  -radius of curvature
KW  -calculated
AB  - In this study, two methods are proposed to calculate a signal time flight time. The acquired ultrasonic signals during the transmission through the cement past in solidification under different temperatures are subject to the radius of curvature method and the Canny edge detector method to extract the flight time and then to compute the velocity of compression waves. Although, these two methods are based on the same principle which is the maximum variation of the signal, the Canny edge detection method is privileged to calculate the flight time. The comparison between the velocities calculated by these methods and the ones computed using the phase velocity equation shows a great similarity.
ER  -