The instantaneous frequency (IF) is a very important feature of nonstationary signals in
numerous applications. The first overview of the concept and application of the IF estimators …

Although the motion estimation problem has been extensively studied, most of the proposed
estimation approaches deal mainly with monochrome videos. The most usual way to apply …

In this paper, we aim at proposing an efficient inverse synthetic aperture radar (ISAR)
imaging method for multiple moving targets in the framework of alternating direction method …

The problem of estimating the motions in image sequences has been extensively studied.
However, most of the proposed motion estimation approaches deal only with the luminance …

The compensation methods for range and Doppler migration in digital television (DTV)
based passive radar are studied in this paper. Firstly, the problems of the compensation …

Cette thèse concerne l'estimation du mouvement dans des séquences d'images
échographiques, avec comme application médicale l'élastographie statique de la thyroïde …

We extend the mathematical analysis of previous work [MT Andersson, Controllable multi-
dimensional filters and models in low-level computer vision, Ph. D. Thesis, Department of …

Ultrasound elastography is a promising technique that can assist in diagnosis of thyroid
cancer. However, the tissue movements generated by the freehand compression are …

Fast algorithms for nonuniform Chirp-Fourier transform Page 1 AIMS Mathematics, 9(7):
18968–18983. DOI: 10.3934/math.2024923 Received: 11 April 2024 Revised: 16 May 2024 …

We present a novel approach that handles the motion estimation/tracking problem in a
phase-frequency tracking framework. Motion estimation in the spectral domain has been …