Radix-2 Algorithms for Implementation of Type-II Discrete Cosine Transform and Discrete Sine Transform
نویسنده
چکیده
In this paper radix-2 algorithms for computation of type-II discrete cosine transform (DCT) and discrete sine transform (DST) of length N = 2 (n ≥ 2) are presented. The DCT/DST can be computed from two DCT/DST sequences, each of length N/2. The odd-indexed output components of DCT/DST can be realized using simple recursive relations. The proposed algorithms require a reduced number of arithmetic operations compared with some existing methods.
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