Title :
P1C-2 Two Dimensional Autocorrelation Estimator and its Statistics in Tissue Motion Estimation
Author :
Huang, Lingyun ; Beach, Kirk W.
Author_Institution :
Dept. of Bioeng., Washington Univ., Seattle, WA
Abstract :
Two dimensional autocorrelation estimator (2D ACE) has been initiated to suppress the high variability of one dimensional autocorrelation estimator (1D ACE) in displacement estimation. A thorough discussion of the statistics of 2D ACE, including the theoretical analysis, simulation will be presented in this paper. The approximately efficient property of 2D ACE and the Cramer Rao Lower Bound (CRLB) is shown. A new sampling strategy of displacement estimation
Keywords :
acousto-optical correlation; biological tissues; biomedical ultrasonics; motion estimation; 2D ACE; 2D autocorrelation estimator; Cramer Rao Lower Bound; displacement estimation; tissue motion estimation; Autocorrelation; Motion estimation; Radio frequency; Sampling methods; Signal analysis; Signal processing; Statistics; Time domain analysis; Two dimensional displays; Ultrasonic imaging;
Conference_Titel :
Ultrasonics Symposium, 2006. IEEE
Conference_Location :
Vancouver, BC
Print_ISBN :
1-4244-0201-8
Electronic_ISBN :
1051-0117
DOI :
10.1109/ULTSYM.2006.321
