Non-local robust quaternion matrix completion for large-scale color image and video inpainting

Z Jia, Q Jin, MK Ng, XL Zhao - IEEE Transactions on Image …, 2022 - ieeexplore.ieee.org
The image nonlocal self-similarity (NSS) prior refers to the fact that a local patch often has
many nonlocal similar patches to it across the image and has been widely applied in many …

A general framework for constrained convex quaternion optimization

J Flamant, S Miron, D Brie - IEEE Transactions on Signal …, 2021 - ieeexplore.ieee.org
This paper introduces a general framework for solving constrained convex quaternion
optimization problems in the quaternion domain. To soundly derive these new results, the …

Convex quaternion optimization for signal processing: Theory and applications

S Sun, Q Diao, D Xu, P Bourigault… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Convex optimization methods have been extensively used in communications and signal
processing. However, the theory of quaternion optimization is currently not as fully …