"filter" in inglés with examples - Collocation dictionary inglés
- This is distinct from a difference-of-Gaussian operation that requires a much smaller kernel size for the Gaussian filter.
- In fact, it can be understood as a smoothing of the Wigner quasiprobability distribution by a Gaussian filter:
- Resolved sub-filter scales only exist when filters non-local in wave-space are used (such as a box or Gaussian filter).
- Gaussian filter - minimum group delay; gives no overshoot to a step function.
- Gaussian filters have the properties of having no overshoot to a step function input while minimizing the rise and fall time.
- This behavior is closely connected to the fact that the Gaussian filter has the minimum possible group delay.
- The response value of the Gaussian filter at this cut-off frequency equals exp(-0.5) 0.607.
- This makes the Gaussian filter physically unrealizable.
- However, no amount of delay can make a Gaussian filter causal, because the Gaussian function is never zero.
- For this, the image is convolved with Gaussian filters at different scales, and then the difference of successive Gaussian-blurred images are taken.
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