This paper provides a review of the Teager–Kaiser (TK) energy operator and its extensions
for signals and images processing. This class of operators possesses simplicity and good …

Background The process of medical image fusion is combining two or more medical images
such as Magnetic Resonance Image (MRI) and Positron Emission Tomography (PET) and …

Medical image analysis methods require the use of effective representations for
differentiating between lesions, diseased regions, and normal structure. Amplitude …

We propose an ultrasound speckle filtering method for not only preserving various edge
features but also filtering tissue-dependent complex speckle noises in ultrasound images …

In this paper, we propose the notion of Fourier frequency vector (FFV) which is inherently
associated with the multidimensional (MD) Fourier representation (FR) of a signal. The …

In this work, an image demodulation algorithm based on two-dimensional higher order
Teager–Kaiser (TK) operators is presented. We show quantitatively and qualitatively that the …

Image modulation represents image by meaningful characters such as image instantaneous
amplitude and instantaneous frequency. A perfect reconstruction image modulation method …

In this work we tackle the problem of demodulation of multidimensional AM-FM signals by
multidirectional higher order Teager-Kaiser operators. This new class of operators extends …

Challenging infrared data sequences such as the well-known AMCOM closure sequences
are characterized by highly nonstationary evolutionary target and clutter signatures, poor …

We propose a technique to estimate the phase derivative in both x and y directions based on
Riesz transform from a single speckle correlation fringes. The originality of this technique is …