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Properties of a general quaternion-valued gradient operator and its applications to signal processing.
Mengdi Jiang
Yi Li
Wei Liu
Published in:
Frontiers Inf. Technol. Electron. Eng. (2016)
Keyphrases
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signal processing
fourier transform
special case
image processing
closely related
real world
data mining
computer vision
multiscale
wavelet transform
edge detection
frequency domain
desirable properties
gradient information
signal analysis