Fig. 3
From: Joint level-set and spatio-temporal motion detection for cell segmentation
An example of a noisy edge detection using b nonparametric density estimation. Comparison of the Parzen density estimate for different bandwidth values of h on the same image intensity samples plotted on the horizontal axis. The optimal h value estimates the bimodality of the local intensity distribution. Use of smaller h is susceptible to statistical variability, while larger h will reduce the estimation accuracy