An Optical Flow-Based Approach for Minimally Divergent Velocimetry Data Interpolation

Figure 7

Plotted and components of the 3D analytical divergence-free vector field. (a) Original, (b) Gaussian noise added, (c) linear interpolation, (d) Horn-Schunck based interpolation, and (e) proposed method. Note that the proposed method is able to achieve a smoother velocity field in the corners of the interpolated data.

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