Cross-correlation

Fast normalized cross-correlation

Fast normalized cross-correlation
  1. What is normalized cross-correlation?
  2. What is Normalised correlation?
  3. What is cross-correlation analysis?
  4. What is auto and cross-correlation in DSP?

What is normalized cross-correlation?

Description. Normalized Cross-Correlation (NCC) is by definition the inverse Fourier transform of the convolution of the Fourier transform of two (in this case) images, normalized using the local sums and sigmas (see below).

What is Normalised correlation?

Normalized correlation is one of the methods used for template matching, a process used for finding instances of a pattern or object within an image. It is also the 2-dimensional version of Pearson product-moment correlation coefficient.

What is cross-correlation analysis?

Cross-correlation analysis is used to determine the degree of association between two waveforms.

What is auto and cross-correlation in DSP?

Crosscorrelation is a measure of similarity between two signals, while autocorrelation is a measure of how similar a signal is to itself.

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