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jAudio 1.0 Aggregator Appendix

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Area Method of Moments Aggregator

Algorithm Description

This specific aggregator was originally intended to be the first 10 statistical moments of a 2D area. This algorithm was first used in graphic machine learning by Fujinaga in 1998. Its first use in digital signal processing is in McEnnis and Fujinaga 2005.

It is a specific feature as the effectiveness of the resulting features is heavily dependent on the importance of the feature ordering.

Algorithm History

The algorithm treats the image as a 2D function f(x,y) = z where x and y are indecis of the underlying matrix. The order of x and y is increased together from order 0 to order 3, caluclated with a coeefcient calculated by the binomial of the x and y order.

The original DSP version is a collaborative effort between the author of the code and Ichiro Fujinaga.

Fujinaga, I. Adaptive Optical Music Recognition. PhD thesis, McGill University, 1997.