Uncertainty-aware traction force microscopy
Fig 9
TFM-UQ applied to endothelial monolayer experiment demonstrates uncertainty propagation.
(A) Membrane labeling of HUVEC monolayers with CellMask. (B) Corresponding fluorescent bead image (beads of size ). Arrows indicate bead-related image artifacts (C) PIV-UQ displacement field
(D) PIV-UQ uncertainty map,
. White regions indicate “bad” PIV windows that were deleted and replaced as described in § 2.2. Uncertainty arrows denote the pointwise angular uncertainty corresponding to 1 circular std. dev. of bootstrapped PIV-UQ distribution. (E) Inferred mean marginal posterior traction stress,
(F) Marginal posterior traction stress uncertainty field (
). Uncertainty arrows denote the pointwise angular uncertainty corresponding to 1 circular std. dev. of marginal posterior
. Scale bar :