Bewegungsabschätzungsverfahren eines Zieles in einer Bilderfolge und Einrichtung zur Durchführung dieses Verfahrens.

摘要

The method according to the invention consists in: - calculating, for each picture, a matrix of transformed coefficients by the Fourier transform; - calculating a so-called phase-correlation matrix, each coefficient of which is equal to the product of a transformed coefficient of a first picture, with the conjugate of a homologous transformed coefficient, of a second picture, divided by the square of the modulus of this product; - calculating a transformed matrix inverse to the phase-correlation matrix, by applying the inverse Fourier transform; - seeking, among the coefficients of the inverse transformed matrix, those having the largest moduli (P1, P2, P3); - then estimating a translation vector for each target and a translation vector of the picture background, on the basis of the rank (x) of the line and of the rank (y) of the column in which the coefficients (P1, P2, P3) having these largest moduli are respectively situated. …Applications to the detection and tracking of targets. ……