A survey on quaternion algebra and geometric algebra applications in engineering and computer science 1995–2020

E Bayro-Corrochano - IEEE Access, 2021 - ieeexplore.ieee.org
Geometric Algebra (GA) has proven to be an advanced language for mathematics, physics,
computer science, and engineering. This review presents a comprehensive study of works …

Quaternion convolutional neural networks

X Zhu, Y Xu, H Xu, C Chen - Proceedings of the European …, 2018 - openaccess.thecvf.com
Neural networks in the real domain have been studied for a long time and achieved
promising results in many vision tasks for recent years. However, the extensions of the …

Color image analysis by quaternion-type moments

B Chen, H Shu, G Coatrieux, G Chen, X Sun… - Journal of mathematical …, 2015 - Springer
In this paper, by using the quaternion algebra, the conventional complex-type moments
(CTMs) for gray-scale images are generalized to color images as quaternion-type moments …

Geometric algebra applications in geospatial artificial intelligence and remote sensing image processing

UA Bhatti, Z Yu, L Yuan, Z Zeeshan, SA Nawaz… - IEEE …, 2020 - ieeexplore.ieee.org
With the increasing demand for multidimensional data processing, Geometric algebra (GA)
has attracted more and more attention in the field of geographical information systems. GA …

Image fusion using quaternion wavelet transform and multiple features

P Chai, X Luo, Z Zhang - IEEE access, 2017 - ieeexplore.ieee.org
Multi-scale-based image fusion is one of main fusion methods, in which multi-scale
decomposition tool and feature extraction play very important roles. The quaternion wavelet …

[HTML][HTML] An uncertainty principle for quaternion Fourier transform

M Bahri, ESM Hitzer, A Hayashi, R Ashino - Computers & Mathematics with …, 2008 - Elsevier
We review the quaternionic Fourier transform (QFT). Using the properties of the QFT we
establish an uncertainty principle for the right-sided QFT. This uncertainty principle …

Coherent multiscale image processing using dual-tree quaternion wavelets

WL Chan, H Choi, RG Baraniuk - IEEE Transactions on Image …, 2008 - ieeexplore.ieee.org
The dual-tree quaternion wavelet transform (QWT) is a new multiscale analysis tool for
geometric image features. The QWT is a near shift-invariant tight frame representation …

Geometric correction based color image watermarking using fuzzy least squares support vector machine and Bessel K form distribution

C Wang, X Wang, C Zhang, Z Xia - Signal Processing, 2017 - Elsevier
This paper presents a robust color image watermarking algorithm based on fuzzy least
squares support vector machine (FLS-SVM) and Bessel K form (BKF) distribution, which is a …

On uncertainty principle for quaternionic linear canonical transform

KI Kou, JY Ou, J Morais - Abstract and Applied Analysis, 2013 - Wiley Online Library
We generalize the linear canonical transform (LCT) to quaternion‐valued signals, known as
the quaternionic linear canonical transform (QLCT). Using the properties of the LCT we …

[图书][B] Quaternion and Clifford Fourier Transforms

E Hitzer - 2021 - taylorfrancis.com
Quaternion and Clifford Fourier Transforms describes the development of quaternion and
Clifford Fourier transforms in Clifford (geometric) algebra over the last 30 years. It is the first …