Title :
Fast Envelope Detection for Thinned Display of Finely Digitized Ultrasound Scans
Author :
Koral, K.F. ; Dupuy, M.E. ; Meyer, C.R.
Author_Institution :
Division of Radiological Physics and Engineering, Department of Radiology, University of Michigan Medical Center
Abstract :
In ultrasound tissue characterization, the backscattered RF signal is finely digitized. The signal envelope is displayed in a version thinned 1-8. Three implementations of Hilbert-transform envelope detection with thinning were timed. An array processor speeds up DFT implementation by a factor of 2.5, but convolution implementation is even faster.
Keywords :
Acoustic measurements; Attenuation measurement; Convolution; Discrete Fourier transforms; Displays; Envelope detectors; Frequency; Signal processing; Ultrasonic imaging; Ultrasonic variables measurement; Animals; Biomedical Engineering; Sheep; Software; Ultrasonography;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1985.325595
