Following initial coregistration and motion estimation and correction, one subject showed evidence of head movement beyond correction and was excluded from further analysis.
On one hand, it needs to be big enough to include enough local subject appearance and be much larger (3-4 thans) then the bolus of lymph to prevent lymph propagation from interfering with subject motion estimation.
The motion estimation algorithm estimates the motion of blocks in the middle frame, F t).
Other subject in the motion estimation is speed of estimation.
The paper frequently has expressions like "we hypothesize that biology tunes its motion estimators" (subsection "Strategies for visual motion estimation", first paragraph).
The homography is estimated using a global motion estimation technique.
A novel motion estimation algorithm is proposed to estimate the object model motion hierarchically.
First of all, the motion vector field is obtained by motion estimation.
We estimate the variance of noise using motion estimation.
The method proposed in [6] for multistatic radar imaging of moving objects facilitates linearization of the nonlinear problem of target scattering and motion estimation and subsequently solves the problem as a larger, unified regularized inversion problem subject to sparsity constraints.
