Resolution:
## Figure 7.
Zero-crossing lines of the second derivative Gaussian wavelet. An illustration of zero crossing lines detection. (a) Box signal contaminated with additive Gaussian noise (standard deviation = 0.5).
(b) Absolute values of the CWT coefficients. The second derivative of the Gaussian was
used as the mother wavelet. (c) All zero-crossing lines are shown. Note how the two longest lines correspond to the
two sharp transitions of the box signal.
Segura |