Two-Dimensional Sub-Sample Shift Estimation Using Plane Phase Fitting
- 3 August 2006
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 2 (15206149)
- https://doi.org/10.1109/icassp.2006.1660552
Abstract
This paper investigates the problem of two-dimensional shift estimation between two sinusoids, proposing a method based on a least square plane fitting of the phases of two complex functions. The complex functions are defined using the cross-correlation and its Hubert transforms. This estimation method is shown to be unbiased for long signals and high signal-to-noise ratios. The case of truncated signals is considered and an iterative version of the estimator, giving more accurate results in these situations, is proposedKeywords
This publication has 4 references indexed in Scilit:
- Beamforming Scheme for 2D Displacement Estimation in Ultrasound ImagingEURASIP Journal on Advances in Signal Processing, 2005
- Matching techniques to compute image motionImage and Vision Computing, 2000
- An efficient two-dimensional frequency estimatorIEEE Transactions on Acoustics, Speech, and Signal Processing, 1990
- Estimating the frequency of a noisy sinusoid by linear regression (Corresp.)IEEE Transactions on Information Theory, 1985