Quaternion block sparse representation for signal recovery and classification

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Cuiming Zou, Kit Ian Kou, Yulong Wang, Yuan Yan Tang

Published: 2021, Last Modified: 25 Jan 2026Signal Process. 2021EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Highlights•We propose a novel quaternion block sparse representation (QBSR) method.•We develop a QBSR based classification (QBSRC) method for quaternion signal classification.•We establish the theoretical guarantees of QBSRC for classification.