Vector Valved Sigma Delta modulators Color Image Applications
Chi‐Wah Kok, T. Chen · International Conference on Image Processing · 1997
Vector valued ZA modulator is proposed for multi-input signal applications, such as color imaging. Traditional ZA modulator can be modeled with vector quantizer in 1-D signal space. The proposed ZA modulator extended this concept to M-D vector space. Optimal noise shaping filter for over sampled vector-valued ZA modulator is considered. Simulation results verified the improvement provided by the proposed ZA modulator.