A motion-estimation technique for coherent underwater acoustic imaging systems is presented. This technique does not require point feature selection or matching correspondence identifcation. The rotation matrix is estimated from the covariance matrices of the amplitude distributions of the wavefield spectra, and the translation vector can be obtained subsequently from the phase change in the spatial-frequency domain.
|Original language||English (US)|
|Number of pages||4|
|Journal||ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings|
|State||Published - Jan 1 1987|
ASJC Scopus subject areas
- Signal Processing
- Electrical and Electronic Engineering