Figure 9
From: Level set segmentation of bovine corpora lutea in ex situ ovarian ultrasound images
Effect of smoothing a contour by truncating Fourier descriptors. (a) An unsmoothed meandering contour. (b) The contour in (a) smoothed by retaining only the first 5% of the Fourier descriptors; the smoothed contour is drawn in black and the original contour is superimposed in grey. (c) Retaining only the first 3% of descriptors. (d) Retaining only the first 2% of descriptors, the smoothed contour now follows the "average" path rather than meandering.