A fast algorithm for the \(n\)-D discrete cosine transform
The authors present a fast computational algorithm for the \(n\)-dimensional discrete cosine transform (\(n\)-D DCT) of length \(N=2^m\). The theoretical results show that the number of multiplications by this algorithm is only \(1\over n\) of that by the conventional method (1-D DCT) in \(n\) directions.
scientific article; zbMATH DE number 1193577