2 papers
math.CA2019
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…
cs.CV2016
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…