Interpolation

Spline-Based Adaptive Interpolation Filters?

Spline-Based Adaptive Interpolation Filters?
  1. What do you mean by spline interpolation?
  2. Which filter is used in interpolation?

What do you mean by spline interpolation?

In the mathematical field of numerical analysis, spline interpolation is a form of interpolation where the interpolant is a special type of piecewise polynomial called a spline.

Which filter is used in interpolation?

The interpolation system uses the lowpass filter H(z) after the expander to attenuate the frequency components of the signal from fs/2 to Lfs/2. In the time domain, the effect of H(z) is to replace the inserted zero value samples that the expander introduces with the interpolated values.

Cross-correlation Cross corelation between two complex-valued Time Series Objects
Cross corelation between two complex-valued Time Series Objects
What is cross-correlation in time series?How do you find the cross-correlation of two sequences?How do you find cross-correlation with FFT?What is cr...
Downsampling Moving average before downsampling effect on Nyquist frequency?
Moving average before downsampling effect on Nyquist frequency?
What happens when a signal is sampled at less than the Nyquist rate?Does downsampling increase frequency?How does downsampling cause aliasing?What is...
Sift Why is scaling of images / pixels into '[0, 1]' range performed before SIFT (Scale Invariant Feature Transform) algorithm?
Why is scaling of images / pixels into '[0, 1]' range performed before SIFT (Scale Invariant Feature Transform) algorithm?
What does SIFT do in image processing?Why are SIFT features scale invariant?What is scale space in SIFT?What are the advantages of SIFT? What does S...