Estimation of Signal and Noise Parameters from MR Data - Advance Image Processing in Magnetic Resonance Imaging - page 136

p (.) probability density function

ϕ phase value

estimator of the phase

ˆ

ϕ

φ phase variable corresponding to ϕ

σ noise standard deviation

σ

2

noise variance
estimate of the noise variance
estimator of the noise variance

ˆ

σ

2

ˆ

σ

2

θ parameter vector

estimate of

ˆ

θ
estimator of

θ ˆ

θ

θ

θ

τ vector function of

ˆ

τ τ estimator of

ω i,n imaginary variable corresponding to the observation ω i,n

ω i,n imaginary observation (number)

ω i,n imaginary observation (stochastic variable)

ω r, n real variable corresponding to the observation ω r, n

ω r, n real observation (number)

ω r, n real observation (stochastic variable)

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