1984•IEEE Transactions on Acoustics Speech and Signal ProcessingRequires access

Comparative performance of two different versions of the discrete cosine transform

Zhongde Wang, B.R. Hunt

Abstract

The performance of version I of the discrete cosine transform(DCT-I) is compared to version II of the discrete cosine transform (DCT-II) on various criteria. The results show that for a Markovian signal with correlation coefficient less than 0.8, the DCT-I performs as well as the DCT-II.

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Available abstract

Key concepts: Discrete cosine transform, Lapped transform, Modified discrete cosine transform, Discrete sine transform, Mathematics, Discrete Fourier transform (general), Trigonometric functions, Algorithm