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Energy tradeoffs for DSP-based implementation of IntDCT

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3 Author(s)
Molino, A. ; Dipt. di Elettronica, Politecnico di Torino, Italy ; Vacca, F. ; Nguyen, T.

The growing interest in video coding has fostered many research activities towards efficient transform architectures. In the past, several works have been proposed concerning the discrete cosine transform (DCT). However, it has been recently shown how DCT can be computed through successive simple operations, called lifting steps. Besides the reduced complexity, these approaches are very promising since they allow the use of integer arithmetic. In this work we present the design tradeoffs behind the implementation of the IntDCT on two different DSP cores. Particular emphasis has been posed on the energy consumption, being mobile applications our final target.

Published in:

Signals, Systems and Computers, 2004. Conference Record of the Thirty-Seventh Asilomar Conference on  (Volume:2 )

Date of Conference:

9-12 Nov. 2003