A new face representation algorithm based on discrete cosine transform
Liangmei Hu · Journal of Hefei University of Technology · 2006
Discrete cosine transform(DCT) is a hypo-optimal transform approach similar to KL transform.As it is independent on signal quantity and similar to classical KL transform in dimension reduction and features extraction,it has been widely used in pattern recognition.A new face representation algorithm is proposed,which fuses global facial features and local facial features based on global DCT and local weighted DCT.Experiment results demonstrate that this algorithm is better than KL transform in the computational speed and the recognition rate.