Finite wordlength effects analysis and wordlength optimization of a multiplier-adder based 8×8 2D-IDCT architecture
Seehyun Kim, Wonyong Sung · 2002
The finite wordlength effects of a multiplier-adder based 8/spl times/8 2D-IDCT (inverse discrete cosine transform) are analytically modeled. Based on the error model, the set of optimum wordlengths conforming to the IEEE specifications is determined. There is a close agreement between the model and the bit-accurate simulation results.