\begin{table}[t]
\centering
\caption{Sensitivity analysis on uncertainty estimation hyperparameters. Results report Dice scores (\%) on PolypGen (10\% labeled). $K$: MC dropout passes. Dynamic thresholding yields consistently strong Dice scores in both the single-frame and sequence settings.}
\label{tab:sensitivity_combined}
\begin{tabular}{lc|cc|cc}
\toprule
& & \multicolumn{2}{c|}{Single frame data} & \multicolumn{2}{c}{Sequence frame data} \\
\cline{3-6}
Threshold & $K$ & EndoSemiS-1 & EndoSemiS-2 & EndoSemiS-1 & EndoSemiS-2 \\
\midrule
$\mu+\sigma$               & 5  & 76.1 & 79.1          & 69.8 & 68.9 \\
$P_{95}$                   & 5  & 78.3 & 77.4          & 69.6 & 70.1 \\
$\min(\mu+\sigma, P_{95})$ & 5  & 76.2 & \textbf{79.4} & 69.3 & 71.2 \\

\midrule
$\min(\mu+\sigma, P_{95})$ & 10 & 77.3 & 75.0          & \textbf{72.7} & 70.6 \\
$\min(\mu+\sigma, P_{95})$ & 15 & 76.0 & 74.8          & 70.5 & 69.8 \\
\bottomrule
\end{tabular}
\end{table}
