A Fast Asynchronous Re-Configurable Architecture for Multimedia Applications

In this paper, a new fast inverse modified discrete cosine transform (IMDCT) algorithm and an efficient hardware accelerator architecture are proposed. The proposed fast algorithm is derived from our previously presented type-IV discrete cosine ...

We present an unified parallel architecture for four of the most important fast orthogonal transforms with trigonometric kernel: Complex Valued Fourier (CFFT), Real Valued Fourier (RFFT), Hartley (FHT), and Cosine (FCT). Out of these, only the CFFT has ...

The fast Hartley transform (FHT) is similar to the Cooley-Tukey fast Fourier transform (FFT) but performs much faster because it requires only real arithmetic computations compared to the complex arithmetic computations required by the FFT. Through use ...