Title :
A synthetic lateral phase (SLP) displacement estimator using complex FIR filters
Author :
Huang, Lingyun ; O´Donnell, Matthew
Author_Institution :
Dept. of Bioeng., Univ. of Washington, Seattle, WA, USA
Abstract :
Lateral displacement estimation based on curve fitting has systematic bias and high variance at boundary regions of ultrasonic images. To solve this problem, we have demonstrated a synthetic lateral phase algorithm using multi-dimensional FFT processing with complex computation. In this paper, we propose a complex finite impulse response (FIR) filter method to enable potential real-time implementation of the synthetic lateral phase algorithm. It shows 46% reduction of estimation variance in an in-vitro experiment with good computational efficiency.
Keywords :
FIR filters; biomedical ultrasonics; curve fitting; complex FIR filter; curve fitting; estimation variance; finite impulse response filter; synthetic lateral phase displacement estimator; Acoustics; Correlation; Estimation; Filtering algorithms; Finite impulse response filter; Pixel; Ultrasonic imaging; FIR Filter; Synthetic lateral phase;
Conference_Titel :
Ultrasonics Symposium (IUS), 2010 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4577-0382-9
DOI :
10.1109/ULTSYM.2010.5935668
