TY - JOUR T1 - Properties of a general quaternion-valued gradient operator and its applications to signal processing JO - Frontiers of Information Technology & Electronic Engineering UR - http://eprints.whiterose.ac.uk/97387/ PY - 2016/02/01 AU - Jiang M-D AU - Li Y AU - Liu W ED - DO - DOI: 10.1631/fitee.1500334 PB - Zhejiang University Press VL - 17 IS - 2 SP - 83 EP - 95 Y2 - 2024/10/23 ER -