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has been cited by the following article:

• TITLE: Spectrum of Signals on the Quaternion Fourier Transform Domain

  AUTHORS: Guicheng Yang, Yingxiong Fu

  KEYWORDS: Spectrum; Quaternion Fourier Transform; Partial Derivative

  JOURNAL NAME: Journal of Applied Mathematics and Physics, Vol.1 No.4, November 6, 2013

  ABSTRACT: The quaternion Fourier transform plays a vital role in the representation of two-dimensional signals. This paper characterizes spectrum of quaternion-valued signals on the quaternion Fourier transform domain by the partial derivative.