18 citations · 25 across the 8 of their papers we have counts for
8 papers
The Color Clifford Hardy Signal: Application to Color Edge Detection and Optical Flow
Xiaoxiao Hu, Kit Ian Kou, Cuiming Zou +1
This paper introduces the idea of the color Clifford Hardy signal, which can be used to process color images. As a complex analytic function's high-dimensional analogue, the color…
Discrete Uncertainty Principle in Quaternion Setting and Application in Signal Reconstruction
Yan Yang, Kit Ian Kou, Cuiming Zou
In this paper, the uncertainty principle of discrete signals associated with Quaternion Fourier transform is investigated. It suggests how sparsity helps in the recovery of missing…
Prolate Spheroidal Wave Functions Associated with the Quaternionic Fourier Transform
Cuiming Zou, Kit Ian Kou, Joao Morais
One of the fundamental problems in communications is finding the energy distribution of signals in time and frequency domains. It should, therefore, be of great interest to find th…
Hypercomplex Signal Energy Concentration in the Spatial and Quaternionic Linear Canonical Frequency Domains
Cuiming Zou, Kit Ian Kou
Quaternionic Linear Canonical Transforms (QLCTs) are a family of integral transforms, which generalized the quaternionic Fourier transform and quaternionic fractional Fourier trans…
Uncertainty Principle for Measurable Sets and Signal Recovery in Quaternion Domains
Kit Ian Kou, Yan Yang, Cuiming Zou
The classical uncertainty principle of harmonic analysis states that a nontrivial function and its Fourier transform cannot both be sharply localized. It plays an important role in…
Robust Signal Reconstruction Using the Prolate Spherical Wave Functions and Maximum Correntropy Criterion
Cuiming Zou, Kit Ian Kou
Signal Reconstruction is one of the most important problem in signal processing. This paper proposes a novel signal reconstruction method based on the prolate spherical wave functi…
Edge Detection Methods Based on Differential Phase Congruency of Monogenic Image
Yan Yang, Kit Ian Kou, Cuiming Zou
Edge Detection Methods Based on Differential Phase Congruency of Monogenic Image Abstract: Edge detection has been widely used in medical image processing and automatic diagnosis.…
Facial Expression Classification Using Rotation Slepian-based Moment Invariants
Cuiming Zou, Kit Ian Kou
Rotation moment invariants have been of great interest in image processing and pattern recognition. This paper presents a novel kind of rotation moment invariants based on the Slep…